Skip to product information
1 of 10

Range Industries

1961-1978 34" F-100 Bolt-In S-550 Mustang Rear Mounting Kit

1961-1978 34" F-100 Bolt-In S-550 Mustang Rear Mounting Kit

Regular price $795.00 USD
Regular price Sale price $795.00 USD
Sale Sold out

In stock

This kit is designed to allow the S-550 suspension to bolt to a F-100  (34" wide rear frame) using the factory subframe mounts on the 2014-2023 Mustang S-550 rear suspension. It also integrates mounts for a 12” coil-over. This setup allows for an unmodified bed and much lower than stock ride height, as well as modern, brakes, suspension, and a limited slip differential. The kit uses the leaf spring bracket holes to locate the assembly (be careful not to mangle the holes when you are removing the factory rivets!) and bolts to the side and bottom of the frame rails.  A small notch in the bottom flange of the frame rail is the only cutting you need to do (to clear the upper arm). You will need to drill some holes for installation, but the brackets act as templates to keep the install simple and straight forward.

Kit contains all mounting brackets and hardware required to mount the 2014-2023 Mustang S-550 rear subframe to your F-100 frame. Coil-overs not included in kit. 

***Check your frame- if the bottom of your frame rails have a large downward flare, modifications may be necessary. Compare your frame to the pictures in the install guide**



Current Lead time is 2 weeks.


Install Overview:

Install this kit by first removing the old suspension, including the leaf spring hangers. Then bolt in the front brackets using 2 of the leaf spring hanger bolt holes. At this point, bolt on the s-550 suspension to the front mounts, and mark & notch the bottom flange of the frame as required. Install the rear brackets to the s-550 subframe and clamp them tight against the bottom and side of the frame rails.  Drill and install bolts to hold it in place, then remove the subframe to allow you to finish drilling and bolting the brackets in.

A machined shock adapter is provided for the lower arm to allow a standard coil-over to bolt in place. A bracket is also included to slide the sway bar backwards if needed to clear your coil-over. The kit is designed to fit a 12” coil over (~12” eye to eye at ride height). We recommend a 350-400 lbs./in spring. Please note, coil-overs are not included. 

 Enjoy your modern suspension, brakes, and limited slip!


Driveshaft Tip - You can get a standard yoke that fits the mustang diff (Ford P/N: F8TZ4851BA). This takes a standard 1350 U-joint and makes getting a driveshaft much easier.

Product Material


Install Instructions

Click to view our Installation Guides here > "Range Industries Installation Guides"

View full details

About Range Industries Products

USA Made

Crafted with precision and pride right here in San Diego, California, our products are all proudly 'Made in the USA.' Each item embodies the essence of American craftsmanship, reflecting a rich heritage of innovation and quality. From sturdy offroad equipment to intricate restorations, our diverse range of products exemplifies the ingenuity and dedication of American manufacturers. With a commitment to excellence, we adhere to strict standards of quality control, ensuring that every product meets or exceeds customer expectations. Range Industries Made in the USA products are built to last, embodying the spirit of American resilience and determination.

Quality Materials

Discover unparalleled excellence with our range of quality automotive products. Crafted with precision and engineered for performance, each component exemplifies durability, reliability, and innovation. From cutting-edge bed racks and offroad equipment to beautifully crafted restoration parts, Range Industries products are meticulously designed to meet the demands of modern driving. Elevate your vehicle's performance and safety with Range Industries, where quality meets craftsmanship.

Fitment Guaranteed

With meticulous engineering and stringent quality control, we promise that our products will seamlessly integrate with your vehicle, backed by our commitment to excellence. Say goodbye to compatibility concerns and hello to seamless installations.