GM Service Manual Online
For 1990-2009 cars only

REVISED REAR AXLE IDENTIFICATION CHART

VEHICLES AFFECTED: 1986 Cutlass Supreme & Custom Cruiser

The Rear Axle Identification Chart for Cutlass Supreme and Custom Cruiser models has been revised. Please update page 4B-1 of your 1986 New Product Service Information Manual - All series except Toronado with the information shown in Figure.

REAR AXLE IDENTIFICATION

RING SERIES GEAR GEAR CONVENTIONAL LIMITED SLIP DIAMETER RATIO CODE CODE ------- -------- ----- ---- ---- G Series 7-1/2" 2.14 2AK 2BK 190 mm 2.41 2AJ 2BJ 2.56 2AA 2BA 3.08 2AC 2BC 3.23 2AD 2BD

G Series-442 8-1/2" 3.73 2TG 2TR 216 mm

B Series 8-1/2" 2.73 8YB 8YP 216 mm 3.08 8YD 8YR 3.23 8YE 8YS

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those 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 a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.