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.
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HOMESERVICE MANUALSCHEVROLET1987S10/T10 P/U 2WD V6-173 2.8LREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLESERVICE AND REPAIROVERHAUL700-R4 AUTOMATIC TRANSMISSIONSUBASSEMBLY SERVICECASE & INTERNAL COMPONENTSREACTION INTERNAL GEAR & CARRIER ASSEMBLY INSPECTION
1987 Chevrolet S10/T10 P/U 2WD V6-173 2.8L
Reaction Internal Gear & Carrier Assembly Inspection
1987 Chevrolet S10/T10 P/U 2WD V6-173 2.8LSECTION Reaction Internal Gear & Carrier Assembly Inspection
1. Inspect reaction internal gear and support for proper assembly, stripped splines, cracks and teeth or lug damage.
2. Inspect thrust bearing assemblies for damage.
3. Inspect lo and reverse clutch plates for wear, heat damage or delamination.
4. Inspect reaction carrier assembly for pinion gear damage, improper staking or damaged or worn thrust bearings.
5. Check reaction carrier assembly for excessive pinion washer wear. Endplay should not exceed 0.008-0.024 inch.
To check the captive thrust bearing in the carrier for wear, place a bushing or an out ut shaft sleeve on the bearing race do not contact pinion gears) and turn it with the palm of your hand.
2. Inspect thrust bearing assemblies for damage.
3. Inspect lo and reverse clutch plates for wear, heat damage or delamination.
4. Inspect reaction carrier assembly for pinion gear damage, improper staking or damaged or worn thrust bearings.
5. Check reaction carrier assembly for excessive pinion washer wear. Endplay should not exceed 0.008-0.024 inch.
To check the captive thrust bearing in the carrier for wear, place a bushing or an out ut shaft sleeve on the bearing race do not contact pinion gears) and turn it with the palm of your hand.
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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.