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1996 - 1999 Corvette: Service Bulletin: No Reverse, Second Gear, or Fourth Gear

Subject: No Reverse, Second Gear, or Fourth Gear (Replace the Reaction Sun Shell)
Source: Chevrolet Dealer Technical Service Bulletin
Number: 00-07-30-022
1996 Buick Roadmaster
1996 Cadillac Fleetwood
1996 Caprice
1996-99 Chevrolet Camaro, Corvette
1996-99 Pontiac Firebird
1999 Cadillac Escalade
1996-99 Chevrolet and GMC C/K, M/L, S/T, and G Models
1996-99 Oldsmobile Bravada
1996-99 Holden Commodore
with Hydra-Matic 4L60-E (RPO M30) Automatic Transmission


Some owners may comment on a no reverse, no second gear, or no fourth gear condition. All other gears will operate properly.


The reaction sun gear (673) may not hold inside the reaction sun shell (670).


Replace the reaction sun shell which has an increased radius from the splines the to shell.

Parts Information

Part Number




Reaction Sun Shell



GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.


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