REVISED SPEEDO GEAR CHART SERVICE MANUAL UPDATE

VEHICLES AFFECTED: 1986 Cutlass Supreme & Custom Cruiser

The Speedometer Gear Chart for 1986 Cutlass Supreme and Custom Cruiser models has been revised. Please update page 7A-16 of your 1986 New Product Service Information Manual - All Series Except Toronado with the information shown in Figure.

G SERIES SPEEDOMETER GEAR CHART ----------------------

ADAPTER AXLE TRANS. TIRE DRIVE GEAR DRIVEN GEAR ASSEMBLY RATIO MODEL SIZE COLOR TEETH COLOR TEETH RATIO ----- ----- ---- ----- ----- ------ ------ ----- 2.14 6KBB P195/75R14 YELLOW 19 LT. GREEN 34 6KAB P205/70R14 YELLOW 19 LT. GREEN 34 P205/75R14 YELLOW 19 GREEN 42 1.3000

2.41 6BHB P195/75R14 RED 17 LT. GREEN 34 6KBB P205/70R14 RED 17 LT. GREEN 34 6KAB P205/75R14 RED 17 BROWN 39 1.2020

2.56 6KCF P195/75R14 WHITE 13 BLACK 27 6KBF P205/70R14 WHITE 13 BLACK 27 P205/75R14 WHITE 13 BROWN 26

2.56 6KBB P195/75R14 YELLOW 19 BLACK 40 6KAB P205/70R14 YELLOW 19 BLACK 40 P205/75R14 YELLOW 19 BROWN 39

2.73 6KCF P195/75R14 WHITE 13 GREEN 29 6KBF P205/70R14 WHITE 13 GREEN 29 P205/75R14 WHITE 13 YELLOW 28

2.73 6KBB P195/75R14 RED 17 BLUE 38 6KAB P205/70R14 RED 17 BLUE 38 6BHB P205/75R14 RED 17 RED 37

3.08 6KCF P195/75R14 WHITE 13 BLACK 27 0.8241 6KBF P205/70R14 WHITE 13 BLACK 27 0.8241 P205/75R14 WHITE 13 WHITE 31

3.08 6BHB P195/75R14 RED 17 GREEN 42 P2D5/70R14 RED 17 PURPLE 43 P205/75R14 RED 17 YELLOW 41

3.08 6KBB P195/75R14 YELLOW 19 BROWN 39 0.8241 6KAB P205/70R14 YELLOW 19 ORANGE 35 0.7333 P205/75R14 YELLOW 19 LT. GREEN 34 0.7333

3.23 6BHB P195/75R14 RED 17 LT. BLUE 45 P205/70R14 RED 17 LT. BLUE 45 P205/75R14 RED 17 DK. GRAY 44

3.73 6KZF P215/65R15 WHITE 13 YELLOW 28 0.7333

B SERIES SPEEDOMETER GEAR CHART ----------------------

AXLE TRANS. TIRE DRIVE GEAR DRIVEN GEAR RATIO MODEL SIZE COLOR TEETH COLOR TEETH ----- ----- ---- ----- ----- ----- ----- 2.73 6KCF P225/75R15 WHITE 13 BROWN 26

3.08 6KJF P225/75R15 WHITE 13 GREEN 29

3.23 6KJF P225/75R15 RED 12 YELLOW 28

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.