This is our latest heavy-duty shock set for T-Maxx, super Heavy-duty damping action, piggyback contains real shock oil reservoir, internal volume compensation allows you to land big jumps, built-in heatsink that keeps oil temperature consistence, 3.5mm thick shock shafts, stronger plastic rod ends and spring retainer designed to work with the optional progressive spring set C22297PRO, white o-rings provide smoother shock movements., standard 2 hole pistons. The MSR5 shocks provide superior off-road & on-road capability, install easily with near no modification, comes with easy to understand instruction for oil filling and bleeding, fully extended shock length (mount to mount) = 107mm; compressed length = 78mm -Item: T3629SILVER Barcode: 91789002332