Yes. Works on mostly any truck with control arms and ball joints. Like the guys that mentioned above, looks like you need to strengthen the control arm so it doesn't bend or break.

 

I just did the flip on my 99 ZR2 and it worked great. I have 2" superlift keys but not the upper arms so my dad machined up some spacers to put on top of the ball joints to level out the upper arm instead of changing them out for the tubular ones.

 

Really considering trying this. Can anyone tell me how thick the spacers need to be or is there some kind of magical formula for figuring this out based on the desired height?

 

I believe they were like 15/16ths. my upper arms were bottomed out so we just added some extra space to help with the angle of the joints so its really like I have a 1" tbar crank instead of 2". its not factory specs but better than what it was before.

 

Are stiffening plates for the top of arm available? Im no fabricater but would like to do this right.

 

I can say I have the done the ball joint flip. But I can also say as of yesterday I'll be swapping them back.
I found that all 4 bolts that hold the ball joint in have all came loose. If they break there is nothing holding the ball joint up. With the joint through the controlle arm it can't move as freely. Just my .02

 

I did the flip and and balljoint spacers over a year ago and have not had a problem

 

I did the flip and spacers and 2 weeks later my upper control arms snapped. Somewhere in my toolbox I now have a pair of paperweights shaped like ball joint spacers...

Side note l, I love my Rough Country 2.5" UCAs

 

Did you have your tbars cranked, stiffening up the suspension? I didnt crank mine much which kept the suspension pretty soft. Absorbing alot of hard hits

 

i was reading through that colorado post and the guy said he got almost 2" of lift with doing the flip( seems hard to believe but anyway) and i was thinking about it today if you put in 2" lift keys and crank and do the ball joint trick then in theory couldnt you lift the front enough to flip your leafs in the back and just level it out by loosening or tightening the keys? does that make sense to anyone? i could be wrong but thats what ive understood from this post