Overview
The Rubicon Express control arm mounts for the rear lower long arm are brackets for a Jeep JK Wrangler, covering the 2007-2018 model years. They are sold as a pair and are used to mount the long arm at the rear lower position.
The mounts are cut from 3/16-inch cold rolled steel and formed on a CNC machine for a precise fit and strength. They work with any tube diameter and are a control arm mount.
Key features
- Rear lower long arm position for the JK Wrangler
- Laser cut 3/16-inch cold rolled steel
- CNC formed for accurate fit
- Works with any tube diameter
- Sold as a pair
Setting the rear arm angle
Rear lower mounts carry load from the long arm into the axle and frame, so their position sets the arm angle. Small changes in mount location shift pinion angle and caster, which affects driveline vibration and steering feel. Once the mounts are set, check the arm angle and the clearance around the tires, brake lines and frame crossmember through full suspension travel.
Long arm installs usually go better with fresh bushings and hardware, so plan for those parts together. Inspect welds and mounting holes on used brackets for cracks or elongation before reusing them. Recheck the bolts after the first few trail runs, since articulation loads settle hardware over time. A careful check now saves time later.
- Check arm angle with the vehicle at ride height
- Look for tire and brake line clearance at full articulation
Specifications
| Brand | Rubicon Express |
|---|---|
| Material | 3/16-inch cold rolled steel |
| Position | Rear lower, long arm |
| Mount type | Control arm mount |
| Tube diameter | Any |
| Quantity | Pair |
| Body style | 2-door and 4-door |
Vehicle fitment
These mounts are for the Jeep JK Wrangler, 2007-2018, in both 2-door and 4-door body styles.
The mounts are for the rear lower position on the Jeep JK Wrangler. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
These mounts are a rear lower bracket and are normally fitted when a long arm kit is installed on the axle. Check the arm angle and clearance after the mounts are set.
What’s included
A pair of rear lower long arm control arm mounts.
Not included: the long arms, the axle and the mounting hardware.




