Power Stroke Shocks (Rear) Slash for Pro-Line PRO-2 SC, Slash 2wd/4X4 (Rear). Other Kits Including Yeti Front w/Universal Adapters (#6063-05) Fits stock Slash ProTrac Suspension Kit for Slash, Slash 4x4 Included with the Pro-line PRO-2 Truck Kit Fits SC10, Blitz and Ultima SC with 6063-05 Universal Adapters Pair with the 6063-01 PowerStroke Front Shocks True dual-stage spring rate Tune your spring rates with this 6063-04 Rear Spring Assortment Aluminum body and shock cap Infinite spring pre-load adjustment Rebuild your shocks with the 6063-02 Rebuild Kit Beefy 3.5mm shock shafts Injection molded, super durable spring retainer and shock ends Bladder sealed shock cap Free flow molded pistons Dual O-ring seats and upper and lower shock shaft guides Pre-assembled just add oil!