Uncategorized Redline Shockproof December 2, 2016 dstech I have run Heavy Shock in the transmission on my Harleys for years. Smooth shifts and much quieter. Has anyone used this in the rear diff of their Can Am. I am really trying to eliminate the rear diff noise.Thanks Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related