Oh yea, right now I have a RE 4.5" short arm kit, would I be able to reuse my uppers that came with my kit on the new long arm? Or do I HAVE to buy adjustables?
If you must, look at Claytons, a proven product, and yes you should get the UCA's for a long arm kit, they have rubber bushings instead of a "johnny-joint" to allow some give for axle twist or your front will bind instead of articulate when you flex.