I put djm 4 inch drop upper and lower control arms on my 01 silverado 2wd about 5 years ago. I dont know the part number. The ball joints bolt to the upper control arms and are pressed in on the lowers. I'm having trouble finding replacements. What have y'all used? I've heard that people don't like the djm ball joints so I was wondering if something else will fit.

 

I think if you call DJM they might have a Moog part number to use.

 

They said a K6124 (which googled as a 71-72 ck upper.) upper ball joint will work but you have to drill out the small side of the tapered hole on the spindle for the threaded part of the ball joint to pass through and sent instructions showing how to do that. It's doesnt look too hard just says to pass a 1/2 inch drill bit through it. The ball joint djm sells has been modified to fit the spindle. Which is easier but I've heard of people complaining about their ball joints. Anyone know if they have made improvements. No word on the lowers yet.

 

K6541 for the lowers. No modification needed.