Standard Rear Axle Option Only
3.90 ratio
3.55 ratio
3.21 ratio
Standard Rear Axle Option Only
4x2 full-floating 4.10 ratio (opt GT5)
4x4 3.73 ratio (opt GT4)
4x4 3.42 axle ratio (opt GU6)
4x2 full-floating 3.73 ratio (opt GT4)
4x4 full-floating 3.73 ratio (opt GT4)
4x2 4.10 ratio (opt GT5)
4x4 6 lug wheel 3.73 ratio (opt GT4)
4x2 4.56 ratio (opt HC4)
4x2 3.42 axle ratio (opt GU6)
4x2 3.73 ratio (opt GT4)
12 bolt cover 5 lug 3.90 ratio
10 bolt cover 3.90 ratio
12 bolt cover 5 lug 3.55 ratio
10 bolt cover 3.55 ratio
10 bolt cover 3.21 ratio
12 bolt cover 5 lug 3.21 ratio
10 bolt cover (Dana 60, 4.09 ratio)
12 bolt cover 8 lug (3.54 ratio)
4x4 SRW 3.73 ratio (opt GT4)
4x4 SRW 4.56 ratio (opt HC4)
4x2 SRW 3.23 ratio (opt GU5)
4x4 SRW 3.42 axle ratio (opt GU6)
4x4 SRW 4.10 ratio (opt GT5)
4x2 SRW 3.42 axle ratio (opt GU6)
4x2 SRW 4.56 ratio (opt HC4)
4x2 SRW 4.10 ratio (opt GT5)
4x2 SRW 3.73 ratio (opt GT4)
DRW 146" WB 9-3/4" ring gear
SRW 14 bolt cover
SRW full-floating 13x2-1/2 brakes
exc. 30 HD DRW
30 HD w/o wide track
DRW 6200 GVW 146" WB
30 HD drum Rear brakes
DRW 10-1/2" ring gear 125" WB
DRW 125" WB 10-1/2" ring gear
SRW 10 bolt cover
4x4 DRW 4.10 ratio (opt GT5)
4x4 DRW 3.73 ratio (opt GT4)
4x2 DRW 3.73 ratio (opt GT4)
4x4 DRW 3.42 axle ratio (opt GU6)
4x4 DRW 4.56 ratio (opt HC4)
4x2 DRW 4.56 ratio (opt HC4)
4x2 DRW 3.42 axle ratio (opt GU6)
4x2 DRW 4.10 ratio (opt GT5)
12 bolt cover 3.55 ratio
10 bolt cover 6200 lb 3.55 ratio
SRW 14 bolt cover
12 bolt cover 3.90 ratio
DRW 6200 GVW 146" WB
SRW 10 bolt cover
DRW 9-3/4" ring gear 146" WB
SRW full-floating 13x2-1/2 brakes
DRW 10-1/2" ring gear 146" WB
exc. 3500 HD SRW semi-floating
3.08 ratio (opt GU4)
2.73 ratio (opt GU2)
3.23 ratio (opt GU5)
4.10 ratio (opt GT5)
2.56 ratio (opt GM8)
3.42 axle ratio (opt GU6)
3.73 ratio (opt GT4)
4.11 ratio (opt HO4)
4.10 ratio (opt GT5)
3.73 ratio (opt GT4)
4.10 ratio (opt GT5)
3.73 ratio (opt GT4)
disc rear brakes aluminum caliper
AT 3.6L
disc rear brakes cast iron caliper
MT 3.6L
MT transmission opt MV5
drum rear brakes
MT transmission opt MM6
LS AT 2.92 ratio (opt GW8)
MT transmission opt MM6 Z28
MT transmission opt M10
(round cover) 11x10-1/4 4-3/4" BC
cut-out cover 4-3/4" BC
(round cover) 11x10-1/4 5" BC exc. SW
(round cover) 11x10-1/4 Sdn 11" brakes
round cover 11x10-1/4 5" BC SW
(round cover) 11x10-1/4 5" BC SW
round cover 10-1/4x9-1/2 5" BC
cut-out cover 5" BC exc. SW
cut-out cover SW
(round cover) 10-1/4x9-1/2 5" BC
Standard Rear Axle Option Only
4x4 3.73 ratio (opt GT4)
4x4 3.42 axle ratio (opt GU6)
4x4 12 bolt cover 3.08 ratio (opt GU4)
4x4 3.08 ratio (opt GU4)
4x4 12 bolt cover 3.73 ratio (opt GT4)
4x4 10 bolt cover 3.73 ratio (opt GT4)
4x2 3.08 ratio (opt GU4)
4x4 12 bolt cover 2.56 ratio (opt GM8)
4x2 2.73 ratio (opt GU2)
4x4 2.73 ratio (opt GU2)
4x2 14 bolt cover 3.73 ratio (opt GT4)
4x2 3.73 ratio (opt GT4)
4x2 3.08 ratio (opt GU4)
4x2 10 bolt cover 2.73 ratio (opt GU2)
4x2 14 bolt cover 4.10 ratio (opt GT5)
4x4 10 bolt cover 4.10 ratio (opt GT5)
4x2 3.42 axle ratio (opt GU6)
4x2 14 bolt cover (3.73 ratio, opt GT4)
4x4 14 bolt cover 3.73 ratio (opt GT4)
4x4 10 bolt cover 3.73 ratio (opt GT4)
4x4 4.10 ratio (opt GT5)
4x2 crew cab 3.73 ratio (opt GT4)
4x4 3.42 axle ratio (opt GU6)
4x2 crew cab 3.23 ratio (opt GU5)
4x4 3.21 ratio (opt HC8)
4x4 3.23 ratio (opt GU5)
4x4 3.73 ratio (opt GT4)
4x2 crew cab 4.10 ratio (opt GT5)
4x2 crew cab 3.42 axle ratio (opt GU6)
4x2 crew cab 3.21 ratio (opt HC8)
4x2 sport suspension (opt ZQ8)
4x2 off road suspension (opt Z71)
4x4 3.42 axle ratio (opt GU6)
4x4 3.73 ratio (opt GT4)
4x4 4.10 ratio (opt GT5)
Standard Rear Axle Option Only
(AWD)
3.42 axle ratio (opt GU6)
3.73 ratio (opt GT4)
active brake control (opt JL4)
8600 GVW (opt C6P) 4.10 ratio (opt GT5)
8500 GVW (opt C5F) 4.10 ratio (opt GT5)
9-3/4" ring gear 7300 GVW (opt C6A)
10-1/2" ring gear
7300 GVW (opt C6A)
8600 GVW (opt C6P) 3.73 ratio (opt GT4)
8500 GVW (opt C5F) 3.73 ratio (opt GT4)
full floating axle (13 x 3.5" brakes)
9-1/2" ring gear (3.42 ratio, opt GU6)
9-3/4" ring gear 4.10 ratio (opt GT5)
Cutaway Van SRW 9-1/2" ring gear
cutaway DRW 10-1/2" ring gear
cutaway DRW 10-3/4" ring gear
Cutaway Van DRW 3.73 ratio (opt GT4)
cutaway SRW 10-1/2" ring gear
Cutaway Van DRW 4.10 ratio (opt GT5)
exc. cutaway 3.73 ratio (opt GT4)
cutaway SRW 9-1/2" ring gear
cutaway DRW 3.73 ratio (opt GT4)
exc. cutaway 4.10 ratio (opt GT5)
30 Series SRW 3.73 ratio (opt GT4)
30 Series drum rear brakes DRW
20 Series 3.21 ratio (opt HC8)
30 Series DRW removable carrier early
30 Series SRW 4.56 ratio (opt HC4)
30 Series SRW 3.21 ratio (opt HC8)
30 Series SRW 3.42 axle ratio (opt GU6)
20 Series 3.73 ratio (opt GT4)
30 Series SRW 4.10 ratio (opt GT5)
30 Series DRW removable carrier late
(round cover) 11x10-1/4 4-3/4" BC
cut-out cover 5" BC exc. SW
round cover 10-1/4x9-1/2 5" BC
cut-out cover 4-3/4" BC
(round cover) 10-1/4x9-1/2 4-3/4" BC
cut-out cover 5" BC
(round cover) 11x10-1/4 5" BC
round cover 10-1/4x9-1/2 4-3/4" BC
round cover 11x10-1/4 5" BC exc. SW
round cover 11x10-1/4 4-3/4" BC
4.10 ratio (opt GT5)
3.42 axle ratio (opt GU6)
3.73 ratio (opt GT4)
Standard Rear Axle Option Only
Standard Rear Axle Option Only
exc. Crew Cab 4x2 3.08 ratio (opt GU4)
Crew Cab 3.73 ratio (opt GT4)
exc. Crew Cab 4x4 3.73 ratio (opt GT4)
4x2 3.08 ratio (opt GU4)
4x4 3.73 ratio (opt GT4)
Regular Cab 4x2 3.73 ratio (opt GT4)
9.5" ring gear (14 bolt) brake opt JF3
Regular Cab 4x4 3.73 ratio (opt GT4)
exc. Crew Cab 4x4 4.10 ratio (opt GT5)
4x2 3.42 axle ratio (opt GU6)
full-floating axle 4.10 ratio (opt GT5)
11.5" ring gear (3.73 ratio, opt GT4)
semi-floating axle 4.10 ratio (opt GT5)
10.5" ring gear 4.10 ratio (opt GT5)
full-floating axle 3.73 ratio (opt GT4)
10.50" ring gear 4.10 ratio (opt GT5)
10.50" ring gear 3.73 ratio (opt GT4)
11.50" ring gear (3.73 ratio, opt GT4)
semi-floating axle 3.73 ratio (opt GT4)
10.5" ring gear 3.73 ratio (opt GT4)
SRW 3.73 ratio (opt GT4)
SRW 4.10 ratio (opt GT5)
Standard Rear Axle Option Only
AT (opt M32)
MT (opt M10)
4x2 2.73 ratio (opt GU2)
4x2 3.73 ratio (opt GT4)
4x4 12 bolt cover 3.08 ratio (opt GU4)
4x4 3.08 ratio (opt GU4)
4x2 3.42 axle ratio (opt GU6)
4x4 12 bolt cover 3.73 ratio (opt GT4)
4x4 10 bolt cover 3.73 ratio (opt GT4)
4x4 12 bolt cover 4.11 ratio (opt GT5)
4x4 3.73 ratio (opt GT4)
4x4 10 bolt cover 3.08 ratio (opt GU4)
4x4 4.10 ratio (opt GT5)
4x4 3.73 ratio (opt GT4)
4x2 2.73 ratio (opt GU2)
4x2 4.10 ratio (opt GT5)
4x4 3.08 ratio (opt GU4)
4x4 14 bolt cover 3.73 ratio (opt GT4)
4x4 10 bolt cover 3.08 ratio (opt GU4)
4x4 3.42 axle ratio (opt GU6)
4x4 6 lug wheel 3.73 ratio (opt GT4)
4x4 12 bolt cover 3.08 ratio (opt GU4)
4x4 4.10 ratio (opt GT5)
4x2 semi-floating 4.56 ratio (opt HC4)
4x2 full-floating 4.10 ratio (opt GT5)
4x2 full-floating 3.73 ratio (opt GT4)
4x2 semi-floating 3.73 ratio (opt GT4)
4x2 semi-floating 3.23 ratio (opt GU5)
4x4 3.73 ratio (opt GT4)
4x2 full-floating 4.56 ratio (opt HC4)
4x2 full-floating 3.21 ratio (opt HC8)
4x4 3.42 axle ratio (opt GU6)
4x2 semi-floating 4.56 ratio (opt HC4)
4x4 4.10 ratio (opt GT5)
4x2 full-floating 3.21 ratio (opt HC8)
4x2 full-floating 4.56 ratio (opt HC4)
4x2 full-floating 3.73 ratio (opt GT4)
4x2 semi-floating 3.73 ratio (opt GT4)
4x2 3.73 ratio (opt GT4)
4x4 (3.73 ratio, opt GT4)
4x2 semi-floating 3.21 ratio (opt HC8)
4x2 semi-floating 4.10 ratio (opt GT5)
2 Dr 4x2 3.42 axle ratio (opt GU6)
4 Dr 4x2 3.08 ratio (opt GU4)
2 Dr 4x4 3.73 ratio (opt GT4)
2 Dr 4x2 3.08 ratio (opt GU4)
2 Dr 4x4 3.42 axle ratio (opt GU6)
4 Dr 4x4 3.42 axle ratio (opt GU6)
4x2 3.42 axle ratio (opt GU6)
4x2 w/o police 3.73 ratio (opt GT4)
4x4 3.73 ratio (opt GT4)
4x2 w/o police 4.10 ratio (opt GT5)
AT Calif (4.30 ratio)
ABS 2 Dr MT (5.12 ratio)
ABS MT (4.62 ratio)
w/o ABS 2 Dr MT (5.12 ratio)
AT Fed (4.62 ratio)
ABS AT (4.88 ratio)
w/o ABS MT 1.6L (5.12 ratio)
w/o ABS 4 Dr (5.12 ratio)
w/o ABS 2 Dr AT (4.30 ratio)
MT (5.12 ratio)
4.2L 17" wheel 3.73 ratio
4.2L 18" wheel 4.10 ratio
4.2L 18" wheel 3.42 ratio
4.2L 20" wheel 3.73 ratio
4.2L 20" wheel 3.42 ratio
5.3L 3.73 ratio
5.3L 3.42 ratio
4.2L 18" wheel 3.73 ratio
5.3L 4.10 ratio
4.2L 17" wheel 3.42 ratio
Standard Rear Axle Option Only
(AWD)
(AWD)
(AWD)