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 MANUALSCHEVROLET1986STEP VAN P20, 6.2 J, AUTOMATIC, 475/M40REPAIR AND DIAGNOSIS (SINGLE PAGE)TRANSMISSIONMANUAL TRANSOVERHAUL - GM 117 4-SPEEDCOMPONENT DISASSEMBLY & REASSEMBLYCOVER & SHIFT FORK ASSEMBLYREASSEMBLY
1986 Chevrolet Step Van P20, 6.2 J, Automatic, 475/M40
Cover & Shift Fork Assembly: Reassembly
1986 Chevrolet Step Van P20, 6.2 J, Automatic, 475/M40SECTION Reassembly
- Install shift rods in correct locations. Install reverse rod, 3rd-4th shift rod and 1st-2nd shift rod. See Figure or Figure . Place fork detent ball springs and balls in hole positions in cover. Place shift rods into cover, depress detent balls with a small punch, and push rod over balls, into cover.
- Starting with reverse shift rod, hold fork in position, and push rod through fork, into front support bore. Install NEW retaining pin in fork and rod. Position fork in neutral position.
- Hold 3rd-4th shift fork in position, and push rod through yoke, but not through front support bore. Place 2 interlock balls between reverse and 3rd-4th shift rods in cross bore of front support bore. Install interlock pin in 3rd-4th shift rod hole and grease to hold in place.
- Push 3rd-4th shift rod through fork and front support bore. Install NEW retaining pin in fork and rod. Position fork in neutral position. Place 2 interlock balls between 1st-2nd shift rod and 3rd-4th shift rod in cross bore of front support bore.
- Hold 1st-2nd shift fork in position, and push rod through front support bore until retainer hole and fork line up with hole in rod. Install NEW retainer pin in fork and rod. Position fork in neutral position. Apply sealant to NEW plugs and install plugs into cover.
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.