Mark Viii Independent Rear Suspension Install Kit, Irs

Part Number: 4210

Put a 1989 through 1998 V8 Lincoln Mark 8, Mercury Cougar or T-Bird IRS in your F-100 pickup

The image shows the kit ( in white ) mounted to the IRS subframe. These 4 adapters are welded to your truck's frame. The IRS subframe is then bolted to the mounts. The installation requires welding and fabrication.

Check out the detailed instructions page before purchasing

Coil spring brackets have holes pre cut for airbags, but the ring that holds the coil spring will need to be cut out.

Brackets are available specifically for airbags without having to modify it, just call first to order.

If using airbags, a lower pedestal mount will also need to be purchased for $200

Consider adapting Mustang 5 on 4.5 bolt pattern rotors or having the originals redrilled for a more popular bolt pattern for more choice of wheels with appropriate offset. Also, 3" wider rear fenders would be a good choice.