One thing I have noticed wheeling with guys with 4:1 single cases is that reverse is just so low. Going forward you can start in 2nd and bomb around in 3rd and 4th, but when you need to back up, its like being in double low. I think a 4 speed atlas, or couple cases with 2x2:1 or even a 2:1 and a 3:1 is ideal. Maybe you don't need this for rock crawling, but I thought I would share my experiences.
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