I know burton chassi can build them alot cheaper.
Not really, i priced out both, take the dual wheel kit off proformance pros, and its very similar, and everything is gauranteed. Randy also starts with a brand new rear end, that drives the cost up too, with burton you supply your own, randy also puts a pretty nice gusset on, thats easy to make, but a nice peice.. Not saying one is better than the other, it just seems a lot cheaper cause you dont have over 3k worth of wheels, 1k on a brand new housing, and a warranty.. When i talked to Burton chassis they were very nice people, and sounded like he knew what he was doing, one of the big reasons i didnt use theirs was time, he was quite a bit out, and it didnt look like i was going to be able to get some tnt in before TS.
Randy worked a deal up on his set up for me, i didnt go with the dual wheel setup, i just used my own cause its hard to spend 3k on wheels for a few pounds.
I ran Yukon 38 spline the last couple years and started breaking axles quite often, until i broke a spindle competely off. My axle tubes have been bending more and more the last few years, and im sure everything was binding. Some say dual wheels on a single wheel housing will cause spindles to bend, but my tubes were bending right out of the housing, and bending pretty good. My tires are only an inch away from my leaf springs, so the only way i see to solve it is a gusset, or move the leafs, moving the leafs is not really an option in the 2.6 class.