Home/2015 Mustang Gears and Differential Parts Ford Performance RING AND PINION INSTALLATION KIT SUPER 8.8 IRS $244.40 Ford Performance Ring and Pinion, 4.09, 2015+ Mustang $407.33 Ford Performance Ring and Pinion, 3.73, 2015+ Mustang Reg. $316.86 NOW! $199.99 Ford Performance Ring and Pinion, 3.55, 2015+ Mustang $316.86 Ford Performance Torsen T2R Differentail, 2015+ Mustang $1,192.10 Ford Performance Half Shaft Upgrade kit, 2015+ Mustang $2,916.72 Ford Performance GT350 rear half shafts, 2015+ Mustang $601.58 Donít see what you are looking for? Give us a call or send an email. We sell thousands of additional parts not listed on the website.