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Section 17 (Servicing - A/T): Identification

WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 1993 Pontiac Sunbird, 1993 Pontiac Grand Prix, 1993 Pontiac Grand Am, 1993 Pontiac Firebird, and 1993 Pontiac Bonneville. However, it is still accessible from the selected car via links, so may be relevant.

The manufacturer has developed a system to functionally describe its transmissions and transaxles. The designations indicate 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

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

Manufacturer/Model Body Transmission(s)
Buick
Roadmaster "B" 4L60
Cadillac
Fleetwood "D" 4L60
Chevrolet
Camaro "F" 4L60
Caprice "B" 4L60
Corvette "Y" 4L60
Pontiac
Firebird "F" 4L60