I don't know too much about independent rear suspensions, I'm more of a solid axle guy with all my Jeepin'. When I put the 37" MT/R's on the ole Rubi, I also did a gear swap that was overkill, but it was meant for the trails, and so I switched to a 5.38:1. That was in a Dana 44 both front and rear. Isn't ours just a center section with CV axles sticking out? Isn't our center shared with other cars, like the motor? Are there no options at all for all the center sections, or is ours special??