Overview
The G2 Axle and Gear 2-2029-321 is a ring and pinion for the rear Chrysler 8.25 Inch axle. The product name gives a 3.21 ratio, but the attribute list reads 3.08. Confirm the exact ratio with G2 or on the box label before you order, because a difference in the ratio changes the gear mesh and the carrier setup.
G2 says its Performance Ring and Pinion sets are built for oversized tires and high-performance engines, with current materials and manufacturing. The set is identified by axle type, and no vehicles or model years are named, so the 8.25 inch Chrysler housing is what needs checking before purchase.
Key features
- Ring gear and pinion sold as one set for the Chrysler 8.25 Inch rear axle
- Ratio shown as 3.21 in the product name and 3.08 in the attributes
- Designed, per G2, for oversized tires and high-performance engines
- Made with current materials and methods.
- Rear axle location
Ratio check before ordering
Two ratios on one part number mean the gear choice needs to be settled before anything is ordered. A 3.21 and a 3.08 are close, but the difference changes gear mesh, pinion depth and how the truck feels when loaded. Measure the existing ring gear and identify the ratio from the old set or the carrier tag if one is present.
Once the ratio is confirmed, plan the rest of the job. Carrier bearings, shims, pinion bearings and axle seals are commonly renewed along with the gears. Inspect the rear axle while it is open, and keep a record of the shim pack so future setup is quicker.
- Confirm the ratio from the old gears or carrier tag
- Order bearings and shims with the gears
- Set pinion depth and backlash by measurement
Specifications
| Brand | G2 Axle and Gear |
|---|---|
| Part number | 2-2029-321 |
| UPC | 631410105292 |
| Axle type | Chrysler 8.25 Inches |
| Axle location | Rear |
| Gear ratio | 3.21 (product name); 3.08 (attribute list) |
| Axle manufacturer | Chrysler |
Vehicle fitment
Fitment is not tied to specific vehicles. The set fits the Chrysler 8.25 Inch rear axle, so verify that housing and the carrier on your vehicle, and confirm the ratio, before ordering. Confirm the axle size before buying.
Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Gear mesh and carrier preload need precise setup, and the ratio question should be settled before the gears are ordered. A gear shop is the practical installer, followed by a break-in period.
What’s included
One ring and pinion set for the Chrysler 8.25 Inch rear axle, part number 2-2029-321.
Not included: Carrier bearings and shims are not part of this 8.25 inch set and should be checked against your carrier.
