LINY4Runner
New member
What spring lengths and # are you running? If you switch to 12's later, you'll prob have to swap out the uppers for a longer spring. I had emailed profender regarding valving and spring lengths and they recommended nothing under a 12" upper on 12" c/o's. 10" is just way too short. When I decide to pony up money to find someone to tune these and swap springs, I might even go with a 14" upper with a way lower spring rate. Mainly because you have to preload the hell out of a shorter coil or else it unloads at minimal droop.
I have 10" 250lb and 12" 350lb in there now as per Poly Performance's recommendations
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