DETROIT LOCKER-TRACTECH Service Kits (POSI) Preload Kit, by DETROIT LOCKER-TRACTECH, Man. Part # 29590-00S Differential Spring Kit - Preload Kit - Spring / Plate - 8.2 / 8.5 / 8.875 in - Kit $99.99 choose option Quick view Add Wish List
Sold Out DETROIT LOCKER-TRACTECH Spring Rebuild Kit - GM 8.5, by DETROIT LOCKER-TRACTECH, Man. Part # 29591-00S Differential Spring Kit - Preload Kit - Spring / Plate - GM 10-Bolt - Kit $144.99 out of stock Quick view Add Wish List
