I have a 1991 c1500 Sierra that I have been wanting to upgrade the front brakes too gmt 800 style while also knocking out 2 birds with one stone I want to also go 6 lug . I came across this post a while back , got inspired to doing this mod. I managed to find a 2005 Chevy astro van 2 wheel drive model . I got the steering knuckles off of it . This is what I Have so far, everything seems to be in its correct location. Only problem I have run into is right now is ball joint fitment, the upper and lower ball joint holes along side tie rod ends , the holes are small, the ball joint threads wont go past thru. I'm currently waiting from a local machine shop to give me a guess estimate on how much it'll cost me to to drill and taper the hole bigger so I can fit my factory ball joints in the hole .
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