Overview
The Rubicon Express Control Arm Front/Rear Adjustable Lower Super-Flex (part number RE3715) is a pair of adjustable lower control arms for the Jeep Wrangler TJ and LJ, Cherokee XJ, Comanche MJ and Grand Cherokee ZJ. The arms can be fitted at the front or rear lower position.
The Super-Flex joints add flex for off-road articulation while keeping on-road handling and long-term durability in mind. Each arm is built from durable tubular steel with an adjustable length.
Key features
- Driver and passenger side lower control arms
- Adjustable length
- Durable tubular construction
- Rebuildable spherical bearing with a 2.25 in polymer race around a 1.75 in hard plated steel bearing
- Threaded steel insert for adjustable preload
- Greaseable, with non-metallic races for quiet operation
Choosing lower arm setup
Lower control arms locate the axle fore and aft and carry braking and acceleration forces, so worn joints show up as clunks, wander and uneven tire wear. Adjustable arms are often used to correct pinion and caster angles after a lift, which means length changes should be made with the suspension at ride height and checked before the vehicle is driven far.
When you replace lower arms, inspect the frame mounts, bushings and the other control arms at the same time. Arms fitted with new joints are usually paired with a track bar check, since the two parts share the job of keeping the axle in place. Greased joints last longer when the fittings are cleaned before each use.
- Grease the joints after trail use
- Check for play at the joints and bushings
- Re-check alignment after changing arm length
Specifications
| Brand | Rubicon Express |
|---|---|
| Part number | RE3715 |
| UPC | 614901440522 |
| Position | Front or rear lower |
| Joint | Super-Flex spherical bearing, 2.25 in polymer race, 1.75 in steel bearing |
| Length | Adjustable |
| Quantity | Pair |
| Lubrication | Greaseable |
Vehicle fitment
These lower control arms fit the 1997–2006 Jeep Wrangler (TJ), the 2004–2006 Jeep Wrangler (LJ), the 1984–2001 Jeep Cherokee (XJ), the 1986–1992 Jeep Comanche (MJ) and the 1993–1998 Jeep Grand Cherokee (ZJ). They install at either the front or rear lower position.
Close vehicles not covered include the Jeep Wrangler (JK) and the Grand Cherokee (WJ). Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The threaded insert sets the preload, so adjust the length and preload together and check the alignment afterward. The joints can be greased.
