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Are the radius arm bushings supposed to fit tightly on to the shaft?
I am in the middle of swapping the front end out for a disc front end from a 73, I bought new bushings for a 73. The shaft looks like it has rusted the outer layer away, letting the new poly bushings move freeley on the shaft. Is that normal, or should I build up the shafts so the bushings fit snug?
my advise is this. if it looks like enough has rusted away to make it unsafe, replace the radius arms. if it is a small small amount of play the bushing will swell when you tighten the retaining nut and fill the space. you have to be the judge as to whether it will work as we cannot see the piece. i say side to the way of safety.
I just did mine and had the same problem, they were not really loose but I could see a differance from origional. I put some greese on them and installed. After tightning they were nice and tight, no play at all. Try it because they get compressed quite a bit when tightned. My openion only. Billemc
On a 1979 F100; I filled the pits on shafts with weld and ground smooth; then tapped on chunks of 3/4" thinwall electrical conduit and they almost looked new and the bushings fit snug. I coated bushings and shaft with silicon grease B4 securing to the brackets.
I went ahead and welded them up. They weren't bad enough to be worried about strength, I just wanted to make sure that the front end is tight, since I'm there anyways might as well spend the time to do it right.
Hopefully tomorrow I'll have them mounted and ready to test drive .