Standard Rear Axle Option Only
3.55 ratio
3.21 ratio
3.90 ratio
Standard Rear Axle Option Only
4x4 6 lug wheel 3.73 ratio (opt GT4)
4x2 model VIN R 3.73 ratio (opt GT4)
4x2 full-floating 4.10 ratio (opt GT5)
4x4 8 lug wheel 4.10 ratio (opt GT5)
4x4 8 lug wheel 3.73 ratio (opt GT4)
4x4 3.42 axle ratio (opt GU6)
4x4 4.10 ratio (opt GT5)
4x2 3.73 ratio (opt GT4)
4x2 4.10 ratio (opt GT5)
4x2 full-floating 3.73 ratio (opt GT4)
12 bolt cover 5 lug 3.21 ratio
10 bolt cover 3.90 ratio
12 bolt cover 8 lug (3.54 ratio)
10 bolt cover 3.55 ratio
12 bolt cover 5 lug 3.55 ratio
10 bolt cover 3.21 ratio
12 bolt cover 5 lug 3.90 ratio
10 bolt cover (Dana 60, 4.09 ratio)
4x2 SRW 4.56 ratio (opt HC4)
4x2 SRW 3.23 ratio (opt GU5)
4x4 SRW 4.10 ratio (opt GT5)
4x4 SRW 3.73 ratio (opt GT4)
4x4 SRW 4.56 ratio (opt HC4)
4x2 SRW 3.42 axle ratio (opt GU6)
4x2 SRW 3.73 ratio (opt GT4)
4x2 SRW 4.10 ratio (opt GT5)
4x4 SRW 3.42 axle ratio (opt GU6)
30 HD drum Rear brakes
DRW 7500 GVW
DRW 9-3/4" ring gear 125" WB
DRW 7500 GVW (146" WB)
DRW 10-1/2" ring gear 146" WB
SRW 10 bolt cover
DRW 146" WB 10-1/2" ring gear
30 HD w/o wide track
DRW 9-3/4" ring gear 146" WB
DRW 125" WB 9-3/4" ring gear
4x4 DRW 3.42 axle ratio (opt GU6)
4x2 DRW 4.56 ratio (opt HC4)
4x4 DRW 4.56 ratio (opt HC4)
4x2 DRW 4.10 ratio (opt GT5)
4x2 DRW 3.42 axle ratio (opt GU6)
4x4 DRW 4.10 ratio (opt GT5)
4x4 DRW 3.73 ratio (opt GT4)
4x2 DRW 3.73 ratio (opt GT4)
3500 HD w/o wide track
DRW 5700 GVW (125" WB, 8-454)
DRW 7500 GVW (146" WB)
DRW 9-3/4" ring gear 146" WB
DRW 146" WB 9-3/4" ring gear
3500 HD drum Rear brakes
DRW 125" WB 10-1/2" ring gear
10 bolt cover 5500 lb 3.55 ratio
DRW 10-1/2" ring gear 125" WB
exc. 3500 HD SRW semi-floating
2.56 ratio (opt GM8)
3.73 ratio (opt GT4)
3.42 axle ratio (opt GU6)
4.10 ratio (opt GT5)
4.11 ratio (opt HO4)
3.23 ratio (opt GU5)
2.73 ratio (opt GU2)
3.08 ratio (opt GU4)
3.73 ratio (opt GT4)
4.10 ratio (opt GT5)
3.73 ratio (opt GT4)
4.10 ratio (opt GT5)
disc rear brakes
LT AT 3.27 ratio (opt GW6)
traction control (opt NW9) 3.8L
AT 3.6L
LS AT 3.27 ratio (opt GW6)
traction control (opt NW9) 5.7L
LS MT
MT transmission opt MM6 Z28
MT transmission opt MM6
w/o traction control
(round cover) 10-1/4x9-1/2 4-3/4" BC
cut-out cover exc. SW
(round cover) 11x10-1/4 5" BC exc. SW
round cover 11x10-1/4 5" BC
(round cover) 11x10-1/4 SW
(round cover) 11x10-1/4 5" BC SW
7.625" ring gear
(round cover) 10-1/4x9-1/2 5" BC
round cover 10-1/4x9-1/2 4-3/4" BC
round cover 10-1/4x9-1/2 5" BC
Standard Rear Axle Option Only
4x4 10 bolt cover 3.08 ratio (opt GU4)
4x4 3.42 axle ratio (opt GU6)
4x4 10 bolt cover 3.73 ratio (opt GT4)
4x2 3.42 axle ratio (opt GU6)
4x4 12 bolt cover 3.08 ratio (opt GU4)
4x4 3.73 ratio (opt GT4)
4x2 3.08 ratio (opt GU4)
4x4 3.08 ratio (opt GU4)
4x4 12 bolt cover 3.73 ratio (opt GT4)
4x4 12 bolt cover 2.56 ratio (opt GM8)
4x2 14 bolt cover 4.10 ratio (opt GT5)
4x2 10 bolt cover 4.10 ratio (opt GT5)
4x2 3.42 axle ratio (opt GU6)
4x4 10 bolt cover 4.10 ratio (opt GT5)
4x2 10 bolt cover 3.73 ratio (opt GT4)
4x2 4.10 ratio (opt GT5)
4x4 10 bolt cover 3.73 ratio (opt GT4)
4x2 10 bolt cover 2.73 ratio (opt GU2)
4x4 14 bolt cover 3.73 ratio (opt GT4)
4x2 2.73 ratio (opt GU2)
4x4 4.10 ratio (opt GT5)
4x4 3.21 ratio (opt HC8)
4x2 crew cab 3.23 ratio (opt GU5)
4x4 3.42 axle ratio (opt GU6)
4x4 3.73 ratio (opt GT4)
4x2 crew cab 3.73 ratio (opt GT4)
4x2 crew cab 3.21 ratio (opt HC8)
4x4 3.23 ratio (opt GU5)
4x2 crew cab 4.56 ratio (opt HC4)
4x2 crew cab 4.10 ratio (opt GT5)
4x4 3.73 ratio (opt GT4)
4x4 3.42 axle ratio (opt GU6)
4x2 sport suspension (opt ZQ8)
4x4 4.10 ratio (opt GT5)
4x2 off road suspension (opt Z71)
Standard Rear Axle Option Only
(AWD)
active brake control (opt JL4)
3.73 ratio (opt GT4)
3.42 axle ratio (opt GU6)
8500 GVW (opt C5F) 4.10 ratio (opt GT5)
full floating axle (13 x 3.5" brakes)
9-3/4" ring gear 3.73 ratio (opt GT4)
8600 GVW (opt C6P) 4.10 ratio (opt GT5)
9-1/2" ring gear (3.42 ratio, opt GU6)
10-1/2" ring gear
8500 GVW (opt C5F) 3.73 ratio (opt GT4)
10-1/2" ring gear (3.54 ratio, opt GH0)
8600 GVW (opt C6P) 3.73 ratio (opt GT4)
7300 GVW (opt C6A)
cutaway SRW 9-1/2" ring gear
cutaway DRW 10-3/4" ring gear
Cutaway Van SRW 9-1/2" ring gear
cutaway DRW 10-1/2" ring gear
cutaway DRW
exc. cutaway 4.10 ratio (opt GT5)
cutaway DRW 4.10 ratio (opt GT5)
cutaway SRW
Cutaway Van DRW 4.10 ratio (opt GT5)
exc. cutaway
30 Series DRW removable carrier early
20 Series
30 Series DRW removable carrier late
20 Series 4.56 ratio (opt HC4)
30 Series SRW 3.23 ratio (opt GU5)
30 Series drum rear brakes SRW
30 Series drum rear brakes DRW
30 Series DRW removable carrier
30 Series SRW 3.73 ratio (opt GT4)
30 Series SRW 3.42 axle ratio (opt GU6)
(8.5" ring gear, w/rear disc brakes)
(round cover) 11x10-1/4 4-3/4" BC
(round cover) 10-1/4x9-1/2 5" BC
round cover 11x10-1/4 4-3/4" BC
(round cover) 10-1/4x9-1/2 4-3/4" BC
cut-out cover SW
cut-out cover 4-3/4" BC
cut-out cover 5" BC SW
(round cover) 11x10-1/4 5" BC
round cover 10-1/4x9-1/2 5" BC
4.10 ratio (opt GT5)
3.73 ratio (opt GT4)
3.42 axle ratio (opt GU6)
Standard Rear Axle Option Only
Standard Rear Axle Option Only
Regular Cab 4x2 3.73 ratio (opt GT4)
Crew Cab 3.73 ratio (opt GT4)
Regular Cab 4x4 3.73 ratio (opt GT4)
4x4 3.73 ratio (opt GT4)
exc. Crew Cab 4x2 3.73 ratio (opt GT4)
Crew Cab 4.10 ratio (opt GT5)
4x4 4.10 ratio (opt GT5)
exc. Crew Cab 4x2 3.08 ratio (opt GU4)
4x2 3.08 ratio (opt GU4)
exc. Crew Cab 4x4 3.73 ratio (opt GT4)
semi-floating axle 3.73 ratio (opt GT4)
full-floating axle 4.10 ratio (opt GT5)
10.50" ring gear 3.73 ratio (opt GT4)
11.50" ring gear (3.73 ratio, opt GT4)
10.5" ring gear 4.10 ratio (opt GT5)
full-floating axle 3.73 ratio (opt GT4)
semi-floating axle 4.10 ratio (opt GT5)
10.50" ring gear 4.10 ratio (opt GT5)
10.5" ring gear 3.73 ratio (opt GT4)
11.5" 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)
4x4 10 bolt cover 3.73 ratio (opt GT4)
4x4 12 bolt cover 3.08 ratio (opt GU4)
4x4 3.42 axle ratio (opt GU6)
4x2 3.42 axle ratio (opt GU6)
4x4 4.11 ratio (opt GT5)
4x2 3.08 ratio (opt GU4)
4x2 2.73 ratio (opt GU2)
4x4 12 bolt cover 3.73 ratio (opt GT4)
4x4 3.08 ratio (opt GU4)
4x4 12 bolt cover 4.11 ratio (opt GT5)
4x4 3.42 axle ratio (opt GU6)
4x4 3.73 ratio (opt GT4)
4x4 6 lug wheel 3.73 ratio (opt GT4)
4x2 3.73 ratio (opt GT4)
4x2 3.42 axle ratio (opt GU6)
4x4 10 bolt cover 3.73 ratio (opt GT4)
4x4 12 bolt cover 4.11 ratio (opt GT5)
4x2 8 lug wheel 3.73 ratio (opt GT4)
4x4 14 bolt cover 3.73 ratio (opt GT4)
4x4 8 lug wheel 3.73 ratio (opt GT4)
4x4 3.73 ratio (opt GT4)
4x4 3.42 axle ratio (opt GU6)
4x2 semi-floating 4.56 ratio (opt HC4)
4x2 semi-floating 4.10 ratio (opt GT5)
4x2 full-floating 3.73 ratio (opt GT4)
4x2 semi-floating 3.23 ratio (opt GU5)
4x2 semi-floating 3.21 ratio (opt HC8)
4x4 4.10 ratio (opt GT5)
4x2 full-floating 3.21 ratio (opt HC8)
4x2 full-floating 4.10 ratio (opt GT5)
4x2 full-floating 3.21 ratio (opt HC8)
4x4 (3.73 ratio, opt GT4)
4x2 full-floating 3.73 ratio (opt GT4)
4x2 (3.73 ratio, opt GT4)
4x2 full-floating 4.56 ratio (opt HC4)
4x4 3.73 ratio (opt GT4)
4x4 3.42 axle ratio (opt GU6)
4x2 full-floating 4.10 ratio (opt GT5)
4x2 semi-floating 3.73 ratio (opt GT4)
4x2 3.73 ratio (opt GT4)
2 Dr 4x2 3.08 ratio (opt GU4)
2 Dr 4x4 3.73 ratio (opt GT4)
4x2 police (opt PPV)
2 Dr 4x4 3.42 axle ratio (opt GU6)
4 Dr 4x4 3.42 axle ratio (opt GU6)
4x4 4.10 ratio (opt GT5)
4 Dr 4x2 3.08 ratio (opt GU4)
4 Dr 4x2 3.73 ratio (opt GT4)
4x4 3.42 axle ratio (opt GU6)
2 Dr 4x2 3.42 axle ratio (opt GU6)
ABS 2 Dr MT (5.12 ratio)
w/o ABS 4 Dr (5.12 ratio)
ABS 2 Dr AT (4.30 ratio)
w/o ABS 2 Dr AT (4.30 ratio)
w/o ABS 2 Dr MT (5.12 ratio)
ABS 4 Dr (5.12 ratio)
AT Fed (4.62 ratio)
AT (4.62 ratio)
ABS MT 2.0L (4.62 ratio)
AT Calif (4.30 ratio)
4.2L 18" wheel 3.42 ratio
5.3L 3.42 ratio
4.2L 17" wheel 3.42 ratio
4.2L 17" wheel 4.10 ratio
5.3L 4.10 ratio
4.2L 20" wheel 3.42 ratio
4.2L 18" wheel 4.10 ratio
5.3L 3.73 ratio
6.0L
4.2L 18" wheel 3.73 ratio
Standard Rear Axle Option Only
(AWD)
(AWD)
(AWD)