Ski-Doo NEW OEM 36" Black Front Suspension Kit REV Chassis To update your sled to the REV-XM Summit X with T3 package Delivers the agility of the original S-36 handling package, plus the benefits of the RAS 2 Better straightline tracking on big bumps HPG shocks Ski stance adjustable from 35.7" (90 cm) to 37.4" (95 cm)