Guys, got a Detroit Truetrac in the garage. Figure I'll up the gears while at it. Being 4wd obviously double the trouble and cost so important to do it right. Presently 3.73's. Leaning toward 4.10's but 4.56 not out of the question. Not to many running 4.56's, guys that I have talked to say they can't hook them on street tires with similar power as mine even in 4wd. Wondering if anyone here has any experience with 4.56 in a 4wd for a track setup.