Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET1987HI-CUBE 6.2 J, 475/M40REPAIR AND DIAGNOSIS (SINGLE PAGE)TRANSMISSIONAUTOMATIC TRANSOVERHAUL & TESTING - 700-R4/4L60TRANSMISSION DISASSEMBLYCHECKING SERVO PIN LENGTH
1987 Chevrolet Hi-Cube 6.2 J, 475/M40
Checking Servo Pin Length
1987 Chevrolet Hi-Cube 6.2 J, 475/M40SECTION Checking Servo Pin Length
- Remove 4th apply piston and return spring. See Fig 1 . Remove retainer ring, washer, apply pin spring and 2nd apply piston pin. Install Piston Compressor (J-22269-01) on 2nd apply piston. See Fig 2 .
- Remove retainer ring, cushion spring and spring retainer. Install Band Apply Pin Tool (J-33037) and apply pin. See Fig 3 . Apply 100 INCH lbs. (11 N.m) torque. Note White line on band apply tool.
- White line should appear within gauge slot if pin length is correct. If White line does not appear, inspect 2-4 band and reverse input drum for wear and damage during disassembly.
- Servo pin length must be checked during reassembly. Servo pin is preset and must not be readjusted. See SERVO PIN SPECIFICATIONS under 2-4 BAND & SERVO ASSEMBLY under TRANSMISSION REASSEMBLY.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.