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I run Rustys fixed uppers and lowers in my 93. My axle did shift forward, which sucks, as its also rotated downward. My shock mounts on the axle end, with my 3.5" of lift, im able to put about a finger and a half between the lower control arms and the shock mount bracket on the lower arms. Upper arms that are adjustable would be GREAT. It would help rotate the axle forward, thus givin me better drive line angles. I my self, did this since my factory arms were shot, at least the bushings were and i had a bad case of death wobble. I also plan on building a long arm kit here in the next yr, and i just put these short arms on back in July. Personally, if i could have afforded the adjustable uppers, i would have done that, but i was on a budget and my arms wernt part of my original purchase price. Having 4 solid arms is nice, knowin you wont have them be outta wack. But bad cuz i cant adjust any thing, and mine needs a lotta adjustment. So take your pick. Run with what you got, go with 4 fixed, or do a combo of 2 fixed and 2 adjustable or do all 4 adjustable. My votes go for the 2 fixed lowers and 2 adjustable uppers. Hope this helps.
 
I told Rustys i have a 3.5" lift. They do make there arms pretty beefy, as i first orderd only the lowers and my shock tabs ended up hittin the arms and was riding on them. I didnt drive it like that, other then maybe around the block. I did already take off the powder coating when the shock tabs hit the arms. Overall the weight is about double the stock arms. If i could do it again, i would get the fixed still for the lowers and then some adjustables for the uppers, to help bring the pinion angle back up some. Also, if you dont have the alignment shims, you wont be able to get a caster alignment. I was only able to get my toe in/out fixed. I think right now im at some thing like 8 degrees caster?? (tires pushed farther forward more then stock). I think in all my upper arms are about an inch to inch and a half, maybe two inches longer then stock, its not much, but it made the differance. Hope that helps for you.
 
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