FD3S Mazda RX7 Ford 8.8" Rear End Swap Kit by Ronin Speedworks

***WE ARE NO LONGER TAKING ON ANY 8.8 REAR END BUILDS WHILE WE MOVE THE SHOP TO FLORIDA - ALL KITS AND KIT PARTS ARE AVAILABLE. WE WILL JUST NOT BE BUILDING DIFFERENTIALS*** The Ronin Speedworks kit will allow you to safely and securely mount the robust Ford 8.8 (2007-2010 explorer case) into your FD3S Mazda RX7.  The Ford 8.8 is widely used and regarded as a great bang for your buck rear end. It has many many gear options available, which makes it not only very affordable, but also very flexible! For example, you can do a fully built rear with Detroit TrueTrac LSD with gears for only $650 in parts!! This ford 8.8 kit will only work with a 2007-2010 Ford Explorer 8.8 IRS case. This case is the cheapest and easiest to find! These junkyard rear diffs can be found at your local junkyard for $130-250. Pretty cool, right??!! This kit will allow you to bolt in this strong, affordable rear end kit into your Mazda RX7 FD3S. The kit is 100% bolt in, but does require welding of the front suppor