Servicing - A/T: Identification

1992 Chevrolet Corvette Base, 2D Coupe, StandardSECTION Identification

The following system has been developed by the manufacturer to functionally describe its transmissions and transaxles. The designations indicate the number of speeds, type, series and major features. See Fig 1 .

Fig 1: Identifying Hydra-Matic Products
G91B11289Courtesy of GENERAL MOTORS CORP.
FWD TRANSAXLE APPLICATION

Model Body Transmission(s)
Buick
Century "A" 3T40 & 4T60
LeSabre "H" 4T40
Park Avenue "C" 4T60-E
Reatta "E" 4T60
Regal "W" 4T60
Riviera "E" 4T60
Skylark "N" 3T40
Cadillac
DeVille "C" 4T60
Eldorado "E" 4T60-E
Fleetwood "C" 4T60
Seville "K" 4T60-E
Chevrolet
Beretta "L" 3T40
Cavalier "J" 3T40
Corsica "L" 3T40
Lumina "W" 3T40, 4T60 & 4T60-E
Oldsmobile
Cutlass Calais "N" 3T40
Cutlass Ciera "A" 3T40 & 4T60
Cutlass Cruiser "A" 4T60
Cutlass Supreme "W" 3T40, 4T60 & 4T60-E
Eighty-Eight "H" 4T60
Ninety-Eight "C" 4T60-E
Toronado "E" 4T60-E
Trofeo "E" 4T60-E
Pontiac
Bonneville "H" 4T60
Grand Am "N" 3T40
Grand Prix "W" 3T40, 4T60 & 4T60-E
Sunbird "J" 3T40
Touring Sedan "C" 4T60-E
6000 "A" 3T40 & 4T60
RWD TRANSMISSION APPLICATION

Manufacturer/Model Body Transmission(s)
Buick
Roadmaster "B" 4L60
Cadillac
Brougham "D" 4L60
Chevrolet
Camaro "F" 4L60
Caprice "B" 4L60
Corvette "Y" 4L60
Oldsmobile
Custom Cruiser "B" 4L60
Pontiac
Firebird "F" 4L60
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.