These flexible urethane torsion Spring Spacers add pre-load to the rear torsion springs. Without causing damage to the torsion spring like other rigid plastic bushings. This increases the pre-load and compression rate. These will help increase your ride height and reduce or eliminate suspension sag. These are a must have for heavier riders. Fit sleds with the SC-5U rear suspension. Expedition, Tundra & Skandic. They will fit either the standard width or the xtra wide track. Current USD to CAD conversion is approximately $70USD. Free shipping on orders over $150CAD!