Which ones to go with for a 4 1/2 rc lift? Rough country said that a t case drop mount would be fine to run any suggestions?

 

If your frame rails of the unichassis are in good shape, the fasteners are not frozen with rust, then the tcase drop is quick, cheap, easy. The SYE is the superior system in that Tcase tail stickout can be reduced making the strongest potiential of the assemblty. With a fresh driveshaft in the deal it is more expensive and time consuming. Check out Gojeep.com for a good tech writeup, parts drawings, install instructions. I've used a 1 x 2.5 x 4.5 alum block milled at 3 deg wedge to correct diveline angle, went with the thicker block for my wedge to stagger the pin and hole 5/8" and move the rear axle forward with the install. When doing a tcase drop check your fan blade to rad relationship after!!!! before you start it up. Had a friend with TJ take out the rad as the engine will tip in position, his fan hit the rad, oops.