Gary's Garagemahal (the Bullnose bible)
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        • Dome and Cargo Lights
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    • Emissions >
      • Inferred Mileage
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      • Engine Building Basics
      • 3.8L (232) V6
      • 300 Six
      • Windsor Series
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      • 385 Series
      • IDI Diesel
      • Drive Belts
      • EGR Valves >
        • EGR System Description & Testing
        • EGR Spacer
        • Gasket: Carb/EGR to Intake (9447)
      • Flywheels
      • Manifolds, EGR, Heat Valves, etc
      • Engine Swaps >
        • 300 Six to Small-Block V8
      • Pulleys
      • Starters
    • Exhaust Systems
    • Exterior >
      • Beds, Tailgates, and Components
      • Bumpers
      • Exterior Mirrors
      • Exterior Trim and Moulding
      • Frames >
        • Engine Perches
      • Fuel Filler Doors
      • Name Plates
      • Push Bars
      • Spare Tire Carriers
      • Stationary Glass - Butyl Type Seal
      • Tape And Decal Application
    • Fasteners & Illustrations >
      • Fastener Pictures
      • Fenders and Aprons
      • Frame
      • Headlights and Turn Signals
      • Hood
      • Interior Trim - Bronco
      • Interior Trim - Regular Cab
      • Radiator and Grille
    • Fuel Systems >
      • 1985-1986 Fuel System Adjustments
      • 460 Fuel Systems
      • Air Cleaners >
        • Air Cleaner Check Valves
        • Air Cleaner Illustrations
        • Air Cleaner Heat Tube
        • Air Cleaner Housing #'s
        • Air Cleaner Snorkels
        • Air Cleaner Tube #'s
        • Hot Air Shroud
      • Carburetors, Chokes, & EFI >
        • EFI Idle Speed Adjustment
        • Jetting
        • How To Find Carb Parts
        • Chokes
        • Carter YFA 1bbl
        • EFI
        • Edelbrock
        • Motorcraft 2150
        • Holley 4180C
        • Motorcraft 7200 VV
      • Diagnostics
      • Fuel System Illustrations >
        • Fuel Filler Pipes
        • 1980-84 F-Series & Bronco
        • 1983-84 F-Series Diesel
        • 1983-87 F350 Chassis Cab DRW
        • 1985 F-Series 302 w/EFI
        • 1985-87 Bronco
        • 1985 on F-Series
      • Fuel System Part #'s >
        • Fuel Filler Pipes
        • Fuel Senders & Pumps
        • Fuel Tanks
        • Fuel Tank Selector Switch
        • Fuel Tank Selector Valve
        • Fuel Vapor Valve
        • Fuel Vapor Separator
      • Fuel System Wiring
    • HVAC >
      • HVAC Systems
      • 300 Six Compressor Illustrations
      • Factory A/C Brackets
    • Interchange >
      • Air Conditioning Interchange
      • Alternator Interchange
      • Brake Interchange
      • Carburetor Interchange
      • Crankshaft Interchange
      • Diesel Injector Pump Interchange
      • Distributor Interchange
      • Fuel Pump Interchange
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      • Window Lift Motor Interchange
      • Water Pump Interchange
    • Interior >
      • Behind The Seat Storage
      • Boots
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      • Doors >
        • Door Locks
        • Door Panels
        • Electric Windows & Locks
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      • Horn Pads
      • Interior Soft Trim
      • Interior Trim
      • Instrument Panel Name Plates
      • Instrument & Radio Bezels
      • Kick Panels
      • Painting Gauge Needles
      • Rear Corner Trim
      • Salvaging Rosewood
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    • Literature >
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      • 1983 Ford Bronco 4x4 Dobbs-Stroppe Team Chase Car
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      • 1985 F150 4×4 Flareside
      • Big Blackie
      • Big Blue >
        • Big Blues Documentation
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        • Air Cleaner
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          • Alternator
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        • Gauges
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        • Transmission
      • Rusty
    • Specifications >
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      • Body Codes - Interior
      • Build Sheet Interpretation
      • Dimensions and Weights
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      • Calibration Codes
      • Certification Label
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      • Electrical
      • Engine Codes
      • Exterior Paint Codes
      • Lubricant Specifications
      • Model Codes
      • Spring Codes
      • Standard Features And Options
      • Towing
      • Transmission Codes
      • Tape Stripe Codes >
        • Bronco Tape Stripe Codes
        • F-Series Tape Stripe Codes
      • VIN Decoding
    • Suspension & Steering >
      • 2WD Spindles
      • Alignment
      • Body Mounts
      • Crossmembers
      • Front Suspension
      • Steering >
        • Coupling - Rag Joint
        • Power Steering Brackets
        • Power Steering Illustrations
        • Pulleys
        • Saginaw Conversions
        • Steering Columns
        • Steering Gear Box
        • Tie Rods and Drag Links
      • Rear Suspension >
        • Auxiliary Springs
        • Rear Springs
      • Sway Bar
    • TSB's >
      • TSB Index
      • TSB Bulletin List
      • Body/Windnoise/Water Leaks/Trim >
        • 81-06-13 Bumper Guard & Tire Carrier
        • 81-7-23 Seat Belts Become Too Tight
        • 83-3-15 Pickup Box Alignment
        • 81-06-15 Pickup Box Wood Floor Replacement
        • 83-13-4 Sheet Metal Welding Procedures
        • 83-16-17 Pickup Box Lean
        • 83-24-18 Swing-Lock Mirror Moves
        • 83-13-22 Electric Mirror Loose Glass
        • 83-24-19 Mirror Head Vibration
        • 87-01-18 Tool Box Mount
      • Electrical / Climate Control / Starting / Charging >
        • 80-4-13S A/C RAPID ON-OFF CYCLING OF COMPRESSOR CLUTCH
        • 81-1-10 FM Radio Interference
        • 81-7-24 Temperature Control Cable Too Long
        • 84-24-9 Noise - Radio Ignition Buzz
        • 87-03-07 EEC-IV Driveability TSB Summary
        • 87-07-20 Radio Ignition Noise
        • 87-21-10 EEC-IV Diagnostics
        • 88-05-07 Malfunction Indicator Light Introduction
        • 89-22-08 Emissions Maintenance Warning Module
        • 90-25-12 Speed Control
        • 96-21-04 2G Alternator Repair
      • Brakes/Steering/Suspension/Wheels >
        • 80-14-14-S STEERING
        • 81-06-04 Integral Power Steering Gear
        • 81-06-16 Front Wheel Grease Seal Gaskets
        • 81-06-17 Rear Parking Brake Cables
        • 81-2-25 REAR SUSPENSION TORQUE SPECS
        • 89-19-01 Brake Noise Recap Of TSB's
        • 89-25-16 Brake Ride Height Proportioning Valve
        • 90-13-9 Frame Cracking At Rear Shock Mount
        • 96-15-11 Frame-Rivet Replacement With Bolts
        • 97-03-10 Frame Creaking/Popping
        • Steering Gear Frame Liner
      • Engine/Cooling System/Exhaust >
        • 81-2-27 ENGINE DETONATION
        • 83-13-7 Correct Oil Fill Level
        • 83-25-21 Air Cleaner Sealing
        • 83-13-8 RTV Sealant - New Material
        • 87-06-10 Stall/No Start: TFI
        • 88-07-16 4.9L Exhaust Manifold Warping
      • Transmission/Clutch/Driveshaft/Axle >
        • 81-5-15 AOD TRANSMISSION
        • 81-06-18 Clutch Housing Fills w/Mud/Dirt
        • 81-07-25 Clutch Shudder/Chatter In Reverse
        • 81-7-26 Missing Shims On SROD
        • 82-25-16(S) Upshift Indicator Light
        • 83-3-23 Axle Lubricant Drain And Refill
        • 83-23-17 8.8" Rear Axle Vent
        • 84-24-13 Transfer Case - Grinding/Block-Out
        • 90-16-07 High Clutch Effort
      • Driveability/Fuel/Ignition/Emissions >
        • 81-6-19 Cold Driveaway Performance Improvements
        • 81-6-20 Piston Slap During Cold Driveaway
        • 81-6-21 Power Valve Vacuum Hose
        • 83-11-12-S Stall/No Start/Hessitation
        • 88-05-14 Low Oil Pressure
        • 91-25-07 IAC Bypass
        • EMW Module
      • Noise/Vibration/Ride/Squeaks/Rattles >
        • 80-1-12-S REAR SPRING SQUEAK
      • Miscellaneous/General >
        • 83-14-1 UNDERHOOD PRODUCTION STAMP RELOCATION
      • Health/Safety/Environmental Hazard information
      • CALIBRATION: 4-53F-R00
      • Fuel Cross-Flow
    • Underhood >
      • Cowl Seal
      • Engine Compartment Lamp
      • Fender Aprons
      • Speed Control
      • Tool Box
      • Vacuum Systems >
        • Vacuum Diagrams >
          • 300 Six
          • 302/5.0L
          • 351W
          • 351M/400
          • 460 V8
        • Vacuum Fittings
        • Vacuum Reservoirs
    • Metrics
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      • Youth Classes >
        • Automotive Maintenance >
          • Fall of 2015
        • Building Web Sites >
          • Lesson 1
          • Lesson 2
          • Lesson 3
          • LTC
        • Overview of Paul's Life, Journeys, & Works >
          • Lesson 1
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      • Projects >
        • Engine Cradle
        • Gauge Pocket
        • Rear Bumper And Spare Tire Carrier
    • Year-To-Year Differences >
      • Door Locks & Turn Signals
    • Test Page
    • 91-6-7 Sterling 10.25 Hub Leaks
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    • Calibration Info & Part #'s
    • Cooling Systems >
      • Cooling Fan #'s & Illustrations
      • Cooling System Illustrations
      • Coolant Recovery & Windshield Washer Reservoirs
      • Elbows
      • Heater Hoses
      • Hose Clamps
      • Radiator Hoses
      • Radiator Support
      • Radiator Part #'s
      • Shroud Part #'s
      • Thermostats
      • Water Pump #'s & Illustrations
    • Driveline >
      • 4WD Front Hubs & Rotors
      • Axles & Differentials
      • Bell Housings
      • Brakes
      • Calculators
      • Clutches and Linkage
      • Drive Shafts
      • Engine Plates
      • Rear Axle Vents
      • Skid Plates
      • Transfer Cases
      • Transmissions >
        • Transmission & Transfer Case Ratios
        • Automatic Transmission >
          • Automatic Transmission Applications
          • General Automatic Transmission Service
          • Automatic Overdrive (AOD)
          • C6
          • Kickdown Linkage
          • Neutral Start Switch
        • Manual Transmissions >
          • Manual Transmission Applications
          • General Manual Transmission Service
          • 3.03 3-Speed Toploader
          • NP435
          • Single Rail Over Drive (SROD)
          • T-18
          • T-19
          • TOD
          • ZF5
      • Speedometer Gears
      • Wheels
      • Wheel Covers
    • Electrical >
      • 3G Conversion
      • Alternators
      • Ammeter
      • Batteries
      • Battery Cables
      • Battery Trays
      • Circuit Protection
      • Clocks
      • Computer Internals
      • Distributors
      • Electronic Engine Control (EEC)
      • Electricity 099
      • EVTM >
        • 1981 EVTM
        • 1985 EVTM
        • 1986 EVTM
      • Gauges
      • Ground Wires >
        • Engine-to-Firewall Ground
        • Battery to Ground
        • Battery to RH Fender
        • Firewall to Hood
      • ICVR
      • Ignition
      • Lighting >
        • Dome and Cargo Lights
        • Fog or Driving Lights
        • Headlight Wiring Harness
        • Tag Lights
      • PMGR Starter Wiring
      • Radios
      • Relays
      • Sending Units
      • Speed Control
      • Standard Wire And Color Codes
      • Switches
      • Tachometers
      • Voltage Drop Testing
      • Windshield Wipers
      • Wiring Connectors
      • Wiring Diagrams
    • Emissions >
      • Inferred Mileage
      • Thermactor Systems
    • Engines >
      • Engine Building Basics
      • 3.8L (232) V6
      • 300 Six
      • Windsor Series
      • 351M and 400
      • 385 Series
      • IDI Diesel
      • Drive Belts
      • EGR Valves >
        • EGR System Description & Testing
        • EGR Spacer
        • Gasket: Carb/EGR to Intake (9447)
      • Flywheels
      • Manifolds, EGR, Heat Valves, etc
      • Engine Swaps >
        • 300 Six to Small-Block V8
      • Pulleys
      • Starters
    • Exhaust Systems
    • Exterior >
      • Beds, Tailgates, and Components
      • Bumpers
      • Exterior Mirrors
      • Exterior Trim and Moulding
      • Frames >
        • Engine Perches
      • Fuel Filler Doors
      • Name Plates
      • Push Bars
      • Spare Tire Carriers
      • Stationary Glass - Butyl Type Seal
      • Tape And Decal Application
    • Fasteners & Illustrations >
      • Fastener Pictures
      • Fenders and Aprons
      • Frame
      • Headlights and Turn Signals
      • Hood
      • Interior Trim - Bronco
      • Interior Trim - Regular Cab
      • Radiator and Grille
    • Fuel Systems >
      • 1985-1986 Fuel System Adjustments
      • 460 Fuel Systems
      • Air Cleaners >
        • Air Cleaner Check Valves
        • Air Cleaner Illustrations
        • Air Cleaner Heat Tube
        • Air Cleaner Housing #'s
        • Air Cleaner Snorkels
        • Air Cleaner Tube #'s
        • Hot Air Shroud
      • Carburetors, Chokes, & EFI >
        • EFI Idle Speed Adjustment
        • Jetting
        • How To Find Carb Parts
        • Chokes
        • Carter YFA 1bbl
        • EFI
        • Edelbrock
        • Motorcraft 2150
        • Holley 4180C
        • Motorcraft 7200 VV
      • Diagnostics
      • Fuel System Illustrations >
        • Fuel Filler Pipes
        • 1980-84 F-Series & Bronco
        • 1983-84 F-Series Diesel
        • 1983-87 F350 Chassis Cab DRW
        • 1985 F-Series 302 w/EFI
        • 1985-87 Bronco
        • 1985 on F-Series
      • Fuel System Part #'s >
        • Fuel Filler Pipes
        • Fuel Senders & Pumps
        • Fuel Tanks
        • Fuel Tank Selector Switch
        • Fuel Tank Selector Valve
        • Fuel Vapor Valve
        • Fuel Vapor Separator
      • Fuel System Wiring
    • HVAC >
      • HVAC Systems
      • 300 Six Compressor Illustrations
      • Factory A/C Brackets
    • Interchange >
      • Air Conditioning Interchange
      • Alternator Interchange
      • Brake Interchange
      • Carburetor Interchange
      • Crankshaft Interchange
      • Diesel Injector Pump Interchange
      • Distributor Interchange
      • Fuel Pump Interchange
      • Head Interchange
      • Starter Interchange
      • Steering Interchange
      • Window Lift Motor Interchange
      • Water Pump Interchange
    • Interior >
      • Behind The Seat Storage
      • Boots
      • Dash
      • Doors >
        • Door Locks
        • Door Panels
        • Electric Windows & Locks
        • Handles & Boot
        • Vent Windows
        • Windows
      • Horn Pads
      • Interior Soft Trim
      • Interior Trim
      • Instrument Panel Name Plates
      • Instrument & Radio Bezels
      • Kick Panels
      • Painting Gauge Needles
      • Rear Corner Trim
      • Salvaging Rosewood
      • Seat Belts
      • Seat Interchangeability
      • Seats & Seat Tracks
      • Sill Plates
      • Steering Columns
      • Sun Visors
    • Literature >
      • 1980 Literature
      • 1981 Literature
      • 1982 Literature
      • 1983 Literature
      • 1984 Literature
      • 1985 Literature
      • 1986 Literature
      • Miscellaneous Literature >
        • Centurion
        • Service Life
    • Picture Galleries >
      • 1983 Ford Bronco 4x4 Dobbs-Stroppe Team Chase Car
      • 1983 Bronco Survivor
      • 1984 Bronco XLT
      • 1984 F150 XL
      • 1984 F150 Survivor
      • 1984 FORD F-150 XLT PICKUP
      • 1985 F-150 Survivor
      • 1985 F150 4×4 Flareside
      • Big Blackie
      • Big Blue >
        • Big Blues Documentation
      • Dad's Truck >
        • Air Cleaner
        • Aluminum Wheel Refinishing
        • Electrical Components >
          • Alternator
          • Battery
          • Power Distribution
        • Gauges
        • Engine
        • Frame
        • Seats
        • Transfer Case
        • Transmission
      • Rusty
    • Specifications >
      • Assembly Plants
      • Axle Ratios
      • Body Codes - Interior
      • Build Sheet Interpretation
      • Dimensions and Weights
      • Interior Paint
      • Calibration Codes
      • Certification Label
      • DSO Codes
      • Electrical
      • Engine Codes
      • Exterior Paint Codes
      • Lubricant Specifications
      • Model Codes
      • Spring Codes
      • Standard Features And Options
      • Towing
      • Transmission Codes
      • Tape Stripe Codes >
        • Bronco Tape Stripe Codes
        • F-Series Tape Stripe Codes
      • VIN Decoding
    • Suspension & Steering >
      • 2WD Spindles
      • Alignment
      • Body Mounts
      • Crossmembers
      • Front Suspension
      • Steering >
        • Coupling - Rag Joint
        • Power Steering Brackets
        • Power Steering Illustrations
        • Pulleys
        • Saginaw Conversions
        • Steering Columns
        • Steering Gear Box
        • Tie Rods and Drag Links
      • Rear Suspension >
        • Auxiliary Springs
        • Rear Springs
      • Sway Bar
    • TSB's >
      • TSB Index
      • TSB Bulletin List
      • Body/Windnoise/Water Leaks/Trim >
        • 81-06-13 Bumper Guard & Tire Carrier
        • 81-7-23 Seat Belts Become Too Tight
        • 83-3-15 Pickup Box Alignment
        • 81-06-15 Pickup Box Wood Floor Replacement
        • 83-13-4 Sheet Metal Welding Procedures
        • 83-16-17 Pickup Box Lean
        • 83-24-18 Swing-Lock Mirror Moves
        • 83-13-22 Electric Mirror Loose Glass
        • 83-24-19 Mirror Head Vibration
        • 87-01-18 Tool Box Mount
      • Electrical / Climate Control / Starting / Charging >
        • 80-4-13S A/C RAPID ON-OFF CYCLING OF COMPRESSOR CLUTCH
        • 81-1-10 FM Radio Interference
        • 81-7-24 Temperature Control Cable Too Long
        • 84-24-9 Noise - Radio Ignition Buzz
        • 87-03-07 EEC-IV Driveability TSB Summary
        • 87-07-20 Radio Ignition Noise
        • 87-21-10 EEC-IV Diagnostics
        • 88-05-07 Malfunction Indicator Light Introduction
        • 89-22-08 Emissions Maintenance Warning Module
        • 90-25-12 Speed Control
        • 96-21-04 2G Alternator Repair
      • Brakes/Steering/Suspension/Wheels >
        • 80-14-14-S STEERING
        • 81-06-04 Integral Power Steering Gear
        • 81-06-16 Front Wheel Grease Seal Gaskets
        • 81-06-17 Rear Parking Brake Cables
        • 81-2-25 REAR SUSPENSION TORQUE SPECS
        • 89-19-01 Brake Noise Recap Of TSB's
        • 89-25-16 Brake Ride Height Proportioning Valve
        • 90-13-9 Frame Cracking At Rear Shock Mount
        • 96-15-11 Frame-Rivet Replacement With Bolts
        • 97-03-10 Frame Creaking/Popping
        • Steering Gear Frame Liner
      • Engine/Cooling System/Exhaust >
        • 81-2-27 ENGINE DETONATION
        • 83-13-7 Correct Oil Fill Level
        • 83-25-21 Air Cleaner Sealing
        • 83-13-8 RTV Sealant - New Material
        • 87-06-10 Stall/No Start: TFI
        • 88-07-16 4.9L Exhaust Manifold Warping
      • Transmission/Clutch/Driveshaft/Axle >
        • 81-5-15 AOD TRANSMISSION
        • 81-06-18 Clutch Housing Fills w/Mud/Dirt
        • 81-07-25 Clutch Shudder/Chatter In Reverse
        • 81-7-26 Missing Shims On SROD
        • 82-25-16(S) Upshift Indicator Light
        • 83-3-23 Axle Lubricant Drain And Refill
        • 83-23-17 8.8" Rear Axle Vent
        • 84-24-13 Transfer Case - Grinding/Block-Out
        • 90-16-07 High Clutch Effort
      • Driveability/Fuel/Ignition/Emissions >
        • 81-6-19 Cold Driveaway Performance Improvements
        • 81-6-20 Piston Slap During Cold Driveaway
        • 81-6-21 Power Valve Vacuum Hose
        • 83-11-12-S Stall/No Start/Hessitation
        • 88-05-14 Low Oil Pressure
        • 91-25-07 IAC Bypass
        • EMW Module
      • Noise/Vibration/Ride/Squeaks/Rattles >
        • 80-1-12-S REAR SPRING SQUEAK
      • Miscellaneous/General >
        • 83-14-1 UNDERHOOD PRODUCTION STAMP RELOCATION
      • Health/Safety/Environmental Hazard information
      • CALIBRATION: 4-53F-R00
      • Fuel Cross-Flow
    • Underhood >
      • Cowl Seal
      • Engine Compartment Lamp
      • Fender Aprons
      • Speed Control
      • Tool Box
      • Vacuum Systems >
        • Vacuum Diagrams >
          • 300 Six
          • 302/5.0L
          • 351W
          • 351M/400
          • 460 V8
        • Vacuum Fittings
        • Vacuum Reservoirs
    • Metrics
    • About Me/Contact Me >
      • Youth Classes >
        • Automotive Maintenance >
          • Fall of 2015
        • Building Web Sites >
          • Lesson 1
          • Lesson 2
          • Lesson 3
          • LTC
        • Overview of Paul's Life, Journeys, & Works >
          • Lesson 1
          • Lesson 2
      • Projects >
        • Engine Cradle
        • Gauge Pocket
        • Rear Bumper And Spare Tire Carrier
    • Year-To-Year Differences >
      • Door Locks & Turn Signals
    • Test Page
    • 91-6-7 Sterling 10.25 Hub Leaks
  • About
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YOUR CART

clutches and linkage

Illustrations and part #'s for the clutches as well as clutch and brake pedals and linkages used on the 1980 - 86 Ford trucks.
  • Clutch Disc & Pressure Plate
  • Clutch Linkage
  • Clutch Release Lever
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>
  • Part Numbers
  • Clutch Testing & Adjusting
  • Clutch Removal & Replacement
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>
Picture
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All 1980 - 82 trucks used a mechanical clutch linkage since the first use of a hydraulic linkage was for the 1983 F250/350 with either a 6.9L diesel or the 7.5L 460 gas engine.  Then, in 1984 everything else, meaning the F150/350 & Bronco, got a hydraulic linkage.

The hydraulic linkage seems to be pretty robust, save for the problem of the firewalls cracking - keep reading.  But the mechanical linkage seems to always be badly worn by this time.  And I can only think of two approaches to resolve that problem - repair the linkage or replace it with the hydraulic linkage used in the 1983 and later trucks.  And while the latter would seem to be the cleanest solution, it isn't without its problems, the major one of which is the firewall as it wasn't designed for the forces it sees with a hydraulic linkage.  With a mechanical linkage the firewall sees up/down forces when you depress the clutch pedal as the linkage runs almost straight down from the clutch pedal's arm to the Z-bar - as shown below.  And, in that plane the firewall is quite stiff.  However, the forces seen by the firewall when using a hydraulic linkage are in/out, and in that plane the firewall isn't as strong.  In fact, Ford put out a TSB on this for all 1984 and later trucks as several of the firewalls cracked and the clutches wouldn't release all the way.  The fix was to install a brace that stiffens the firewall significantly, and Ford had two different braces, as shown on the Hydraulic/Parts List tab: E3TZ 7K509-A for minimal flex; and E3TZ 7K509-B for "severely damaged" firewalls.

A brace of some kind really should be added if one is converting from a mechanical linkage to hydraulic.  Unfortunately the Ford braces are no longer readily available.  Even worse, 
Terrapin Manufacturing made a brace, but they've gone out of business.  There are a few of the Ford braces and a few of the Terrapin ones floating around, but very few.  However, Bronco Graveyard has one that looks good for $79.

As for rebuilding the mechanical linkage, you will probably find many of the joints badly worn.  And parts aren't readily available.  So, what I did was to weld up the worn parts and either drill out the holes or grind down the parts that needed to be round.  And, I used oilite bushings to replace the plastic ones that came out of the factory.  All of that is described in this thread on FTE, and it worked well for the several thousand miles I drove Dad's truck before tearing it down for restoration.
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If you are wondering if you can use a release lever from a truck with hydraulic linkage in a mechanical linkage application, the answer is a qualified "yes".  I used a release arm from a ZF5 (E7TZ 7515-A) in Dad's truck with mechanical linkage - for a short time.  It worked, but it was obvious that my left leg was going to be much larger than the right in short order.  So I did some investigation and realized that the arms for mechanical linkage have much more leverage than those for a hydraulic linkage - as shown here:
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Here are a couple of shots of the two arms, with the mechanical arm on the bottom and the hydraulic on the top.  In the left shot the arms are lined up on their pivot points, and in the right shot they are lined up where they would contact the throwout bearing
But, what if you really, really want to run mechanical linkage with a transmission that only came with a hydraulic throwout arm?  Marry the two.  Here are some shots of how I did it and got 1.41:1 leverage, which helped dramatically.  However, don't think that is going to solve all your problems as that will put the release arm at a severe angle, so go read what I did about that on Dad's Truck Build thread on FTE here and here.  In addition, the steel used in these arms is HARD.  After two minutes in my band saw with a new bi-metal blade there was barely as scratch.  So, I had to cut them with the plasma cutter.