89 Bronco Lift Kit Suspension Parts: What You Need to Know

Lifting a 1989 Ford Bronco requires more than just a set of springs. The '89 Bronco has a unique Twin-Traction Beam (TTB) front suspension, which means lift kits must address alignment and geometry changes. This guide covers the specific suspension parts you'll need for a successful lift, from control arms to shocks, and helps you choose the right components for your driving needs.

Key Suspension Components in a Lift Kit

A complete lift kit for an '89 Bronco typically includes several parts that work together. Here's what you should expect:

Coil Springs and Leaf Springs

For the front, lifted coil springs replace the stock units to raise the ride height. They must match the TTB axle's weight and lift height. Rear leaf springs (or add-a-leafs) provide the rear lift. Quality springs maintain ride comfort and prevent sagging over time.

Shocks and Steering Stabilizers

Longer shocks are essential to match the increased travel. Gas-charged shocks like Bilstein 5100s or Rancho RS5000s are popular choices. A steering stabilizer helps reduce bump steer and keeps the steering wheel steady on rough terrain.

Track Bar and Bracket

A dropped track bar (or relocation bracket) centers the front axle after a lift. Without it, the axle shifts to the driver's side, causing poor handling and tire rubbing. Adjustable track bars allow fine-tuning.

Radius Arm Drop Brackets or Extended Radius Arms

The TTB front suspension uses radius arms to locate the axle. Lifting the Bronco without correcting the radius arm angle puts stress on the bushings and limits downward travel. Drop brackets reposition the arms, while extended radius arms improve articulation and ride quality.

Pitman Arm

A dropped pitman arm lowers the steering linkage to match the lifted suspension geometry, reducing bump steer. Not all lift kits include this; for lifts over 4 inches, it's highly recommended.

Brake Line Bracket Kits

Extended brake lines or bracket relocation kits ensure the brake hoses don't bind when the suspension droops. This is a safety must-have.

Bump Stops

Extended bump stops prevent the suspension from bottoming out and damaging components. They should match the lift height.

Choosing the Right Lift Height

Common lift heights for the '89 Bronco range from 2.5 inches to 6 inches. Each height has different requirements:

2.5 to 3 Inch Lift

This is a mild lift that fits 33-inch tires with minor trimming. It typically uses coil spacers (front) and add-a-leafs (rear) or new springs. Shocks may be reused if aftermarket. Alignment can often be adjusted within stock range with camber bushings.

4 Inch Lift

A popular height that clears 35-inch tires. Requires new springs, extended shocks, drop brackets for the radius arms, a dropped pitman arm, and an adjustable track bar. The TTB front end will need axle pivot drop brackets to maintain proper steering geometry.

6 Inch Lift

For massive tires (37 inches or larger). This height demands extensive modifications: long-arm kits, crossover steering, lift-specific drop brackets, and often a driveshaft modification. Ride quality and road manners degrade if not done correctly.

Suspension Lift vs. Body Lift

Many owners combine a suspension lift with a body lift. A body lift uses spacers between the frame and body, raising the body without changing suspension geometry. It's cheaper but provides no extra wheel travel. For off-road capability, a suspension lift is superior. For the '89 Bronco, a 3-inch body lift plus a 4-inch suspension lift is a common combination to fit massive tires while keeping the center of gravity lower.

Important Factors for the 1989 Bronco TTB Front End

The TTB front axle is known for its strength but also for alignment challenges after a lift. Key points:

• Camber and Caster: Lifting alters these angles. Camber bushings (2.5-3 inch lift) or cut-and-turn beams (4+ inch lift) are needed to correct alignment. Without proper camber, tires wear unevenly and handling suffers.
• Axle Pivot Bushings: Heavy-duty pivot bushings reduce axle wrap and improve steering response. They're worth upgrading during a lift.
• Radius Arm Bushings: Polyurethane bushings last longer than rubber and reduce deflection.
• Steering Linkage: The TTB's steering tie rods are susceptible to bump steer. A dropped pitman arm and adjustable drag link help.

Installation Tips

• Alignment First: After lift installation, take the Bronco to a shop experienced with TTB alignments. Expect to need camber bushings or beam work.
• Check Driveshaft Angles: Lifting changes the angle of the driveshafts. If you get vibrations, consider a slip yoke eliminator (for the rear) or a double-cardan shaft.
• Torque Everything: Use a torque wrench on all suspension bolts. Loose bolts cause clunks and premature wear.
• Test Flex: Before finalizing, cycle the suspension to check for binding. Look for tire rubbing, brake line stretch, and shock contact.

Final Recommendation

For most 1989 Bronco owners seeking a balanced on-road and off-road performance, a 4-inch suspension lift with quality components is the best choice. Focus on a kit that includes: coil springs, leaf springs, extended shocks, radius arm drop brackets, dropped pitman arm, adjustable track bar, and brake line brackets. Brands like Skyjacker, Rough Country, and Pro Comp offer reliable kits specifically for the TTB Bronco. Verify that the kit includes the necessary alignment correction (camber bushings or cut-and-turn instructions). Avoid cheap kits that skip drop brackets or pitman arms—they will drive poorly and wear tires quickly. If you plan to off-road heavily, invest in extended radius arms and a steering stabilizer. A lift is an investment in capability; choosing the right parts ensures your '89 Bronco handles safely and performs on the trail.