Can't you get the calipers on the late model wj's at the salvage yard.
I have to warranty my upper bad ball joint by July. I have the duralast gold in one upper and its holding up.
My drag link track angles are driving me nuts so I think its time. But I want offset tie rod ends first. Then use the tiered to make drag link.
What bearings did you run? Have you made the spacers for the calipers
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I am guessing this is ment for me??? I did get my WJ knuckles from the PnP. I bought the spacers. I think JKS the first time. Probably IRO the next time. Others have them. The spacers need to be welded on. They support or center the bearing hub. If the 1/4 bearing spacer is not welded on, then it can move around. Not good, actually dangerous.
I used hub bearings for a 2000-2001 XJ. This gives the proper off set for WJ rotors. You will also need /4 with spacers for the caliper brackets. I think IRO sells some. I used SKF, and Timken hub bearings. I did use F(l)AG bearing on my present build. Actually, I think one was SKF and one F(l)AG. Remove the 'l' from that.
A few alternate this I tried and did and am running. One is I used a 07-08 Liberty rotors. They are about 1/16 less on diameter, but 5 on 4.5 spacing. I ran them for a bout 2 years. Then I changed to a WJ/JK rims and have 5 on 5 on the front. Used a WJ bearing hub. Still need the spacers. I've run this probably 3 years or so.
On my present build, I am using the 07-08 Libby/Nitro Rotors. I am using NAPA Active or is it Reactive rotors and pads, maybe even the Calipers. Previously, I did not have to space out the caliper bracket, with the Libby/Nitro rotors. This time I have to space them out about 1/16", maybe an 1/8" . I used washers from the hardware store.
On the WJ 5 on 5, I did try not to use the 1/4 Knuckle spacers. I wanted to see about a true bolt on. Didn't work. The spacer is needed to keep the axis of the u-joint in line with the axis of the knuckle. It will bind some. Also, the arc of the offset u-joint may or will cause leaks with the seal(s) at the pumpkin. Hope this helps.
Also, from this thread, I think the Tera and Synergy might be a better option(s) than what I tired. Mainly they advertise ball joints without the knurl. The other is I see how they have the grease fittings. Those look more convenient. I do not know why I did not go that route. ???