Overview
The Dana Spicer 10032861 is an Ultimate Dana 44 front axle with a 3.73 ratio and an open differential. It fits 2007-2017 Jeep Wrangler JK models and bolts in directly while reusing the stock wheel ends.
The axle carries Spicer nickel chromoly steel axle shafts, a Spicer performance differential cover and SPL 1350 universal joints. Caster and pinion angle are optimized for lifted Jeeps.
The axle is built for Jeep Wrangler JK owners who rely on their vehicle. It has an open differential and a 3.73 ratio, with redesigned, thicker brackets and 5/16 inch thick axle tubes for strength and rigidity.
Caster and pinion angle are optimized for lifted Jeeps, and the axle carries an increased gross axle weight rating. Dana recommends military tested and approved 75W-140 synthetic lube, which is not included, and the Spicer performance differential cover uses a Spicer performance gasket.
The unit is a front axle, so the rear JK housings are a separate product. Confirm the axle position against your vehicle before installing.
Key features
- 3.73 gear ratio
- Spicer nickel chromoly steel axle shafts
- Spicer performance differential cover and gasket
- SPL 1350 axle shaft universal joints
- Improved caster and pinion angle for lifted Jeeps
- Increased gross axle weight rating
Before you install
A front axle swap changes more than the gears. The axle carries the steering knuckles, the wheel hubs and the driveline angles, so check the rest of the front end before the truck is driven. Lift height, tire size and steering geometry all interact with the axle, and a change in one usually calls for a look at the others.
Gear ratio affects how the vehicle feels off road. A 3.73 ratio pairs with larger tires in a different way than the stock setup, so plan the drivetrain as a whole. Replacement u-joints, the front driveshaft and the pinion seal are often inspected at the same time.
- Check the front driveshaft angles after the lift is installed
- Inspect the wheel bearings and seals during the swap
Specifications
| Brand | Dana Spicer |
|---|---|
| Part number | 10032861 |
| Position | Front |
| Housing | 07-up Jeep JK Dana 44 |
| Gear ratio | 3.73 |
| Traction device | Open differential |
| Axle spline | 30 splines |
| Wheel bolt pattern | 5 on 5 inches |
| Brakes | Reuse factory |
| Fitment type | Direct fit |
Vehicle fitment
The axle fits the 2007-2017 Jeep Wrangler (JK) in the 70th Anniversary, 75th Anniversary, Rubicon, Sahara, Sport, Sport S and Unlimited versions, in the front position.
The JK fit ends at 2017, and the axle does not fit the Wrangler JL or the Gladiator JT. Confirm fit for your vehicle’s year, model and trim before ordering.
Installation notes
This Ultimate Dana 44 reuses the factory wheel ends, so check that your wheel bolt pattern is 5 on 5 inches before installing.
What’s included
The front axle assembly with the Spicer nickel chromoly shafts and SPL 1350 universal joints.
