Overview
The Rubicon Express RE1464 is a universal design, 2 degree steel shim for leaf springs 2.5 inches wide. It is used at the front or rear to set pinion angles, and it is listed without center pins.
Rubicon Express makes these shims from solid steel for durability on trail use. The brand says many other shims float between the spring pack and the spring perch, which reduces how far the center pin engages. Its design becomes part of the spring pack and will not come loose or fall out.
Key features
- 2 degree angle
- Solid steel construction
- Universal design for springs 2.5 inches wide
- Used at the front or rear to set pinion angles
- Becomes part of the spring pack rather than floating loose
- Center pins not included
Setting pinion angle with shims
A shim changes the angle between the pinion and the driveshaft by tilting the axle on the leaf spring. Because the shim sits in the spring pack, its angle and thickness decide how much correction the driveline receives. Measure the existing pinion angle before ordering, so the correction matches what your setup needs.
Shims are usually considered when a lift changes the axle position or when vibration appears at highway speeds. After installation, check the U-bolts and the spring pack for tightness, and recheck the pinion angle once the vehicle has settled. Worn spring bushings or a bent axle can also throw off the angle, so inspect those parts before adding more correction.
- Measure the pinion angle with the vehicle at ride height
- Replace worn spring bushings before adding correction
- Re-torque U-bolts after the first drive
Specifications
| Brand | Rubicon Express |
|---|---|
| Part number | RE1464 |
| UPC | 614901438352 |
| Angle | 2 degree |
| Spring width | 2.5 inch |
| Material | Steel |
| Center pins | Not included |
| Use | Front or rear, for pinion angle |
Vehicle fitment
It is a universal design sized for leaf springs 2.5 inches wide. Match the spring width and the pinion angle you need before ordering.
Confirm your vehicle’s spring width and pinion setup, along with its year, model and trim, before ordering.
Installation notes
Center pins are not included and must be sourced separately. The shim can be used at the front or rear to set pinion angles. Because it becomes part of the spring pack, it stays in place under trail use.
What’s included
One steel shim, listed without center pins.
Not included: center pins.
