The 2021 and newer Bronco brought independent front suspension to a body-on-frame Ford trail rig, and it works well. It is still a production truck built to a price. Push it harder and the weak spots show up fast: factory tie rods that bend, rubber bushings that bind, a front end that tops out on the shock, and a rear axle that hits hard at full compression.

Before you buy anything, know which shocks your Bronco has. Some of our parts are built for trucks on the factory Bilstein shocks with the Sasquatch package, and some are built for trucks with the HOSS 3.0 suspension and factory Fox shocks. Each product below says which one it fits.

Lift and Level: Collars and Spacers

We lift the Bronco with collars that go under the spring, not blocks on top of the shock. A collar under the spring adds preload to the factory spring and raises ride height while the shock stays where Ford put it. A block on top moves the whole shock down, lets the suspension droop farther than it was designed to, and puts bind on the ball joints and CV joints. Our lift collars vs. top spacers guide explains the difference in detail.

On Sasquatch Broncos, the machined aluminum front collar levels the nose with the rear, and the aluminum rear spacers add rear ride height while keeping the factory coil springs. On HOSS 3.0 Broncos, the collar keeps the factory springs and Fox shocks and lets you choose how much lift you want. Planning bigger tires? Pair your lift with the rear bump stops in step three.

Bronco Tie Rods: Fix the Part That Bends

Every steering input and every hit to a front tire goes through the tie rods, and factory Bronco tie rods bend. Like the lift, the right kit depends on your suspension package.

For Broncos with standard tie rods, the Bronco Billet Half Tie Rod Kit moves the outer joint to a 7/8" FK rod end on a CNC machined 6061-T6 aluminum tube, and pairs with the Bronco Tie Rod Support Sleeve (14mm). For HOSS 3.0 Broncos, the HOSS 3.0 Billet Half Tie Rod Kit is built around the 16mm stock inner tie rod shaft, with the matching HOSS 3.0 Tie Rod Support Sleeve (16mm).

The half kits intentionally keep the factory inner tie rod. That keeps load out of the steering rack and leaves a serviceable link you can swap on the trail. For maximum strength, the Bronco Billet Tie Rod Kit replaces the full assembly with 7/8" FK rod ends at the spindle and 3/4" FK rod ends at the rack. Read more in Why Off-Road Tie Rods Bend.

Bump Stops and Limit Straps

The hardest hits a Bronco takes are at the ends of its travel. At full droop, the shock is the only thing stopping the wheel, so the shock and its top mount take every top-out. At full compression, the axle slams into a rubber stop. Bump stops and limit straps put a defined stop at both ends.

Up front, the Bronco Front Limit Strap & Bump Stop Kit works with the factory lower arm. Two 9" limit straps stop the front at full droop and a frame-mounted bump stop can catches it at full compression.

At the rear, there are two options. The Bronco Adjustable Rear Bump Stop Kit is bolt-on and built for FOX, ADS or Carbon hydraulic bump stops, with height adjustment that helps when running larger tires. The Bronco Rear Hydraulic Bump Stop Kit installs into the factory spring buckets with minimal modification and uses ADS or FOX bump stops with 2" of travel. See our bump stop guide and limit strap guide for how they work.

Billet Upper Control Arms

The upper arm sets the caster and camber of the front wheel, and both change when you lift the truck. The Bronco Billet Aluminum Upper Arm Kit — Stock Length is CNC machined in-house with a 1.25" FK uniball at the spindle and 7/8" FK rod ends at the frame, so your alignment shop can adjust both. It works with the stock spindle and bolts on directly. If you prefer a welded arm, there is a Fabricated Upper Arm Kit too.

While you are in there, the Bronco Lower A-Arm Slot Block Kit locks your alignment so camber does not walk after a hard hit, and the Lower Arm Rear Pivot Reinforcement Brackets strengthen the lower arm mounts.

Fabricated Lower Arms and Billet Rear Arms

Fabricated Lower Control Arms

The Bronco Fabricated Lower Control Arms — Stock Length are 4130 with a 1.5" uniball at the spindle and 1" uniballs at the frame. They work with the factory spindle and factory coil-over, and have steering stops matched to the spindle to protect the steering rack.

They are also built for what comes next. The arms are ready for a bypass shock, a front bump stop and our sway bar. For the sway bar, choose the Bronco Sway Bar Kit for Fabricated Lower Arm, which uses a 1.25" diameter bar and includes lower arm pivot reinforcement brackets, or the Sway Bar Links to keep the factory bar. Adding a bypass shock later takes the Bronco Fabricated Front Bypass Shock Mount Kit and our FMI-specific bypass shock; the mounts may not work with other off-the-shelf bypass shocks.

Billet Rear Arms and Panhard Bars

The rear links locate the axle every time it moves, and the factory rubber bushings bind as it articulates. The Bronco Rear Suspension Kit — Billet Aluminum Rear Arms replaces the uppers and lowers with machined billet arms on 1" FK uniballs. They fit the stock mount locations, and the upper arms carry an aluminum ball post for the factory suspension travel sensor. The upper and lower arms are also sold separately.

A lift moves the rear axle off center. To put it back, choose the Billet Panhard Bar with Ultra-Flex Joint, or an adjustable panhard bar in Heim joint or Johnny Joint versions. Our panhard bar guide compares all three.

Bronco +3" Long Travel Front

The Bronco +3" Long Travel Front Suspension Kit makes every front component 3" longer than stock per side, adding 6" of total front track width and about 15% more wheel travel. It uses fabricated 4130 upper and lower arms, a bypass shock tower and extended 4340 half shafts that work with the stock CV joints, and it keeps the stock coil-over location. It can keep the Bronco's electronic disconnect sway bar or run our sway bar kit.

This is not a bolt-on kit. The bypass shock tower and bump stop weld to the frame, fiberglass front fenders are required because stock Bronco fenders won't clear the tire, and the truck needs an alignment from a shop that knows long travel. You don't have to do it all at once: start with the arms and add the bypass shock, bump stop and limit straps later. Read more in Mid Travel vs. Long Travel.

Bronco Protection and Known Problems

The front differential mount. The driver side front differential frame bracket is a known crack point on the Bronco. Our post on the cracked Bronco front differential mount covers the Ford TSB and the fix.

Skid plates. The Bronco Skid Plate, Rear Differential Skid Plate and Fuel Tank Skid Plate cover the underside.

Rear shocks and links. Rear shock skids come in two versions, one for Sasquatch and base shocks and one for the HOSS 3.0 shock. The Rear Shock Guard Mud Flap Kit blocks roost from the front tires, and the Rear Lower Arm Frame Guard with HDPE Slide protects the rear link mounts.

The Bronco Build Path, In Order

Current pricing for every part is on its product page. Most owners are happy around step three or four, and step six is for dedicated desert builds. If you want a package quote, call us at (480) 718-9800.

Ford Bronco Suspension FAQ