When I was at SEMA I saw several 2015 IRS complete assemblies in the Ford Racing areas. It looks like a nice design, and they are selling kits to beef it up for drag racing and/or road racing. But, I don't see much potential for adapting the 2015 IRS to older Mustangs or other cars/trucks. It is 64.9" wide (rear track).
Any thoughts? How long before a solid rear axle kit hits the market?
Any thoughts? How long before a solid rear axle kit hits the market?