Quick view Moser Moser 9" Rear Conversion Kit | 2005–2014 Mustang S197 Looking to ditch your factory 8.8 and upgrade to a true 9-inch rear?This Moser 9" Rear Conversion Kit makes the swap simple, strong, and ready for serious power. Designed specifically for 2005–2014 S197 Mustangs, this package takes the guesswork... MSRP: $4,600.00 Choose Options Compare