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Installing a 99+ Cobra IRS into a Fox Body

Bill

Well-Known Member
Staff member
Donator
Don't forget to deal with the bolt size mismatch on the front cradle bushings. The bolts from the box body are 12mm. The sleeve in the IRS bushing and the bolts are 14mm. There are a couple of companies that make a bushing specifically designed to use the 12mm bolt in the IRS. Maximum Motorsports always has them in stock. There are solid bushings available that are also a good option, but allow a bit more NVH.
 
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