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Old 02-17-2014, 03:25 PM   #4
gale
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Join Date: Jun 2013
Location: Houston Texas
Posts: 310
Re: Modify arms for tapered steering joints?

Quote:
Originally Posted by yossarian19 View Post
I know this has been done & been asked (probably a lot of times) but I'm not coming up with it.
How do you go about reaming a 7* taper into the stock steering arms? Seems the hole would need to be shrunk first to get engagement on the small end of the taper.
First things first, get the parts off the truck and in hand. The Pitman arm is a good place to start but there are 3 more balls to remove.

Grind the peening and possibly a short weld off the back side of the ball.

There is a slight chamfer in the hole before the peening was done so this will make it a little more difficult to drive or press the ball out. The easiest or maybe less difficult way to attack the ball is to drill it partially out and then drive it. Make sure the part is perpendicular to your drill press and drill a 1/4" hole followed by a 1/2" bit to a depth of 1/2" or so.

The hole is already tapered but the angle is much shallower than the modern replacement joints so you will need a reamer that matches the new joint.
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Gale Gorman
'54 3100
'67 C20 stepside
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