D TRUCK REAR AXLE IDENTIFICATION MODEL CODE RATI0 SIZE BRAKE D1 BSJ 3 08 8 50 11 15 x 2 75 w G80 D1 BJ3 3 08 8 50 11 15 x 2 75 w G80 D1 HXT 3 08 8 50 11 15 x 2 75 w1G80 D3 BMH 4 56 10 50 13 x 3 5 w G80 D3 GHV 4 56 10 50 13 x 3 5 w1G80 D3 HFF 4 56 10 50 13 x 3 5 w G80 WAREHOU5ING AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATION LT TRUCK 52D 20 REV 10 86