OK, to get the FDR where it is recommended with this Trinity D4 17.5 Maxzilla I need to run a 32t - 33t pinion with a 72 spur. I only have 1 pinion that large (a 31t) and it's a RR steal gear. I was thinking this is alot of rotating mass to get going......Are you guys running aluminum pinions or steal?
Last edited by Jeepy2013; 09-10-2014 at 04:20 PM.