Differential gear set, original DANA Spicer, Dana 30 for Jeep CJ 1971/1986
Very few parts last forever, especially those rotating at a high rate of speed. Dana Spicer ring and pinion gear with installation kits are perfect for replacing worn or damaged gears, changing ratios, or when refreshing the differentials.
Dana Spicer hob and shave the gears for longevity with minimal mating stress; use modern designs and materials including heat-treating and shot-peening to maximize life; and use high-grade steel for consistency and exceptional durability.
The main installation features are the following:
- differential case design type: Dana 30
- on vehicle location front and/or rear
- ring gear diameter: 7.130"
- ring gear bolt quantity: 10
- ring gear standard rotation
- axle type semi floating
From the drop-down menu select the desired ring and pinion ratio.
Specifications for 3.73 ratio:
- pinion gear tooth 11
- pinion spline 26
- ring gear tooth 41
- on vehicle location front
- include installation kit
Specifications for 4.10 ratio:
- pinion gear tooth 10
- pinion spline 26
- ring gear tooth 41
- on vehicle location front/rear
- include installation kit
Specifications for 4.27 ratio:
- pinion gear tooth 11
- pinion spline 26
- ring gear tooth 47
- on vehicle location front
- include installation kit
Specifications for 5.38 ratio:
- pinion gear tooth 8
- pinion spline 26
- ring gear tooth 43
- on vehicle location rear
- include installation kit
