66-77 Bronco 1.5″ Performance Package

NOTE: The 1.5" performance package will not require a drop pitman arm or drop track bar bracket. This suspension system will not work with any TRO - Tie Rod Over Steering Setups.

This Performance package comes with our Dual Sport Heim Steering system. It requires the use of an OE-style pitman arm. If you do not have one you may purchase one here.

Our 1.5" performance package will not require a drop pitman arm or drop track bar bracket. This suspension system will not work with any TRO - Tie Rod Over Steering Setups. You will only be offered TRU - Tie Rod Under the knuckle heim to tapered stud mounting options below.

You will need to select the proper knuckle mounting hardware for the steering linkage that comes with this system. If you are not sure which one you need or not sure if your Bronco's knuckles are stock or have been modified then you will need to verify that before choosing.

If you are looking for the strongest or off-road options for your setup then you will want to choose the 3/4" bolt or the F150/GM 1-ton mounting kit options. Both of these options may require drilling/reaming and we provide those tools as an add-on once you make your selection.

564X - 3/4" Bolts for TRO or TRU applications - Requires Drilling of knuckles
5647 - Tapered Stud Kit for F-150 / 78-79 Bronco & GM 1-TON Knuckles Tie Rod Under Applications
5648 - Tapered Stud Kit for Stock Early Bronco Knuckles Tie Rod Under Applications

By choosing the 3/4" through bolts you are going to want to consider purchasing our knuckle drill kit. This high quality bit will ease the pain of drilling the knuckles.

We highly recommend you consider adding this to your purchase now. This anti-rear axle spring wrap device prevents damage and failure to your rear driveshaft and leaf springs. This is a must for anyone who has a heavy foot, running 300+ horsepower, has a manual transmission and/or likes to go on and off road with their Bronco. Customers have stated the Torque Tamer has also made their Broncos more stable off road and smoothed out their take offs and shifts.

Important: when installing the Torque tamer to have your driveshaft angles dialed in with less than 2 degrees of difference in pinion to driveshaft angle. This typically will require pinion shims and they are offered in Body lift & Accessories for this kit. You can also weld on HD leaf spring perches offered here.

Note: If you are not running one of our exhaust systems this product may require you to modify the exhaust system you are currently running. We highly recommend you use one of our exhaust systems as they work with all of our parts. More info here

You will be presented with 2 options below - 1) Our Heavy Duty Torque Tamer for OEM frame 2) Our DIY HD Torque Tamer for Aftermarket Frames

NOTE: crossmember in this kit is NOT powder coated or fully welded. For more info click here.

Do you want to install the Torque Tamer w/o having to weld to your rear axle? If yes, this is a perfect solution for you.

The bracket comes silver zinc plated for good looks & corrosion resistance plus all hardware and drill bit to install. If you have 400 horsepower at the crank, 35-inch or larger tires, or do aggressive off-roading, we recommend you install the torque tamer with the traditional axle weld-on brackets that come with the kit.

Important when installing the Torque tamer to have your driveshaft angles dialed in with less than 2 degrees of difference in pinion to driveshaft angle. This typically will require pinion shims and they are offered in Body lift & Accessories for this kit. You can also weld on HD leaf spring perches offered here.

Choose color-matched C caps to go with the new T rex radius arms.

NOTE: Kit does not come with C caps.