Overview
The Rubicon Express RE3704 is a black PTMEG replacement bushing and sleeve set for lower Rubicon Express control arms. It is a large Super-Ride bushing for control arms that have a crimped end ring or were previously retrofitted to this bushing style.
The bushing is made from PTMEG, which is polytetramethylene ether glycol, and it is rated at 88A durometer. The flexible material is designed to balance durability and control without giving up articulation.
The bushing also works on control arms with the RE3763 conversion. The kit contains one bushing and a two-piece inner sleeve.
Key features
- PTMEG bushing rated 88A durometer
- Large Super-Ride bushing with a two-piece inner sleeve
- Works on control arms with the RE3763 conversion
- Designed to be installed, lubricated and serviced on the trail
Lubrication and trail service
Control arm bushings take constant side loads and twisting from the axle, so they wear over time. A bushing that is stiff, cracked or loose can let the axle wander, which affects steering and tire wear. Inspect the bushing and sleeve each time you service the suspension, and after hard trail runs with sharp impacts.
PTMEG is a flexible material, but lubricating the bushing during installation helps it slide and seat properly. Use a suitable lubricant so the sleeve seats cleanly and the bushing turns freely. When replacing a bushing, check the control arm for cracks or a worn end ring, since a new bushing cannot fix a damaged arm.
- Inspect the bushing for cracks, tears or looseness
- Keep the sleeve clean and lubricated
- Check the control arm for cracks around the bushing
Specifications
| Brand | Rubicon Express |
|---|---|
| Part number | RE3704 |
| UPC | 614901440492 |
| Color | Black |
| Material | PTMEG (polytetramethylene ether glycol) |
| Hardness | 88A durometer |
| Bushing size | Large |
| Contents | 1 bushing and 2-piece inner sleeve |
| Fitment label | Universal fit |
| Warranty | Lifetime against failure, per Rubicon Express |
Vehicle fitment
Rubicon Express labels this bushing universal fit for lower control arms with a crimped end ring or a previous retrofit to this style. No vehicle is named, so check the control arm style before ordering.
Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Install the bushing into a lower control arm with a crimped end ring or a retrofit to this style. Lubricate the bushing during installation, since Rubicon Express says these bushings are easy to lubricate and service on the trail.
What’s included
One PTMEG bushing and a two-piece inner sleeve.
Not included: The control arm itself.






