Quickshot23 The Losi XXX-XXXT shocks are bulletproof and almost leakproof. Very adjustable with many pistons and spring rates. Fill em and forget them for the season. If you are going to race at a track they might have strick shock rules. I have 2 slash 2wd and I wish I could run losi shocks. Aluminum shock caps is all we can change. The bladders swell and blow out and no more fluid. I am now seaching for a gasket to replace the bladder part. I have all types of Losi vehicles and all their shocks are their best attribute.