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Section 24 (Servicing - A/T): Identification

WARNING: This page does not describe the selected car, but rather 66 other vehicles, including the 1992 Pontiac Sunbird, 1992 Pontiac Grand Prix, 1992 Pontiac Grand Am, 1992 Pontiac Firebird, and 1992 Pontiac Bonneville. However, it is still accessible from the selected car via links, so may be relevant.

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