2021+ Bronco Fabricated Lower Control Arms - Stock Length

• 1 right side fabricated lower arm, with FK uniballs installed
• 1 left side fabricated lower arm, with FK uniballs installed
• 1 kit of 17-4 stainless spacers for the uniballs at the wheel and the frame
• 2 12-point 5/8" bolts for the lower uniball at the spindle

Reuse the factory lower arm mounting bolts at the frame. If you have also added frame support plate kits at the lower arm mounts, you can use upgraded bolts instead.

The front lower arm carries the weight of the truck through the coil over and takes the full force of every hit and landing. Its pivots decide how precisely the wheel is held as the suspension moves.

These arms use a 1.5" uniball at the spindle connection and 1" uniballs at the frame. A uniball is a spherical bearing that pivots freely through the arm's travel while holding the wheel where it belongs.

Steering stops matter too. Billet machined steering stops are welded into the core of the arm and geometry matched with the spindle, so the steering stops at the right point and the steering rack is protected.

• Material: 4130
• Construction: MIG welded and fixture built for consistent fit and quality
• Joints: 1.5" FK uniball at the spindle, 1" FK uniballs at the frame
• Spacers: machined 17-4 stainless steel
• Steering stops: billet machined, welded into the arm and matched to the spindle
• Built in: bypass shock mounts, sway bar mounting tabs and a welded-on bump stop plate
• Finish: powder coat

The arms are built to grow with the truck. Each of these can be added at any time:

3" bypass shock

Add a 3" bypass shock with the add-on upper shock mount kit and our proprietary FMI special-layout 3" shock. The bypass shock mounts are already built into the arm.

Front bump stop

The arms come with the bump stop plate welded on, ready for our weld-on front bump stop kit.

Sway bar

The arm has mounting tabs for our Bronco sway bar kit. It uses a 1.25" diameter bar with custom bent sway bar arms.

Fits the 2021 and newer Ford Bronco, stock length.

• Works with the stock factory spindle / upright
• Works with the stock factory coil over shock, or with aftermarket stock replacement coil over shocks

Do I need new spindles?

No. The arms were designed to work with the stock factory spindle.

Can I keep my factory coil overs?

Yes. They work with the stock coil over shock or with aftermarket stock replacement coil overs.

What uniballs does it use?

FK uniballs: 1.5" at the spindle and 1" at the frame, installed in the arms.

Which bolts do I use at the frame?

Reuse the factory lower arm mounting bolts, or upgraded bolts if you have added frame support plate kits. The kit includes the two 12-point 5/8" bolts for the lower uniball at the spindle.

Can I add a bypass shock later?

Yes. The bypass shock mounts are built into the arm. Add the upper shock mount kit and our special-layout 3" shock when you are ready.

Can I use any bypass shock?

No. The mounts are designed to work with our FMI-specific bypass shock and may not work with other off-the-shelf bypass shocks. Contact FMI for more information on bypass shock fitment.