Re: Grinding upper mounting boss on drum spindles...
My god. Removal of the spindles was a MOTHER EFFER. I was completely unaware of how difficult it would be.
As it turns out, the ball joints have tapered ends, and probably were pressed into the spindle at one point (or else torqued very hard onto them). I jacked up the car by the frame and lowered the lower a-arm onto the jackstand, compressing the spring.
Getting the cotter pins out took a half hour in itself. The brake components came out without too much difficulty, but the bolt that goes into the upper mounting boss would not budge. The two lower bolts on the backing plate came out fine.
I then removed the steering linkage. However, the top bolt had metal tabs protruding that had been folded over the hex parts of the bolts, and the tabs would not budge.
So I decided to take out the spindle with the backing plate still on it.
Unbolted the nuts on the upper and lower balls about half way, and banged the heck out of it with a rubber mallet, trying to get the ball joints to move. I pounded away like a cave man for a half hour and nothing.
Out of sheer frustration I took my metal hammer and gave the lower part of the spindle about five good HARD whacks, right on the spindle between the lower ball joint and the ball joint's nut. To my delight it came loose! I removed the lower ball joint nut and sure enough, it came off.
The upper a-arm was then free and moving up and down, spindle and backing plate still attached.
I shook the sucker for about 5-10 minutes, gave it a few HARD whacks with the metal hammer in the same place, and nothing.
So I turned the spindle straight on, positioned it so that the bottom of the spindle didn't hit the boot of the lower ball joint, and put my adjustable crescent wrench in between the upper a arm and the disc backing plate like a lever and hit down on the crescent wrench with the rubber mallet. After about five hits the thing finally popped off.
Thanks for all of your help.
Black 1968 Coupe.
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