So I installed a set of correction wedges in the rear this weekend. And figured while I was under there I would replace the lower CA bolts in the rear at the axle. I get one off an inspected the hole for any wallowing. Well, didn't find any.

But what I did find is a square hole Doesn't sound normal to me. But then I thought, hmmm... maybe they originally used or anticipated using a carriage style bolt. So as it stands I have a bolt running through a square hole. Anybody else have the same experience?

**Update: just realized that it's actually the rear-upper axle-side mounts.

 

If you mean this, it's normal.



I have never heard why they are like that. Most things that make you scratch your head on vehicles is done for one of two reasons.
1. Because it's always been done that way.
2. It makes it easier to assemble on the line.

.

 

Exactly like that. Except now that I'm thinking more about it - it was actually the upper rear CA axle-side mount.
Either way it just drives me crazy.

Well, my current plan is to just cut a piece of steel, drill a hole, and then weld it to the bracket on that one side. Already have to do that for the front lower since it currently uses cam bolts - so what's one more right.

 

After doing some more research looking for the best solution, it appears that they are square/rectangular because i guess it once used or is using cam bolts. I was reading they typically are used in rear-upper and front-lower axle side mounts.

 

Well, confirmed that the holes were there for cam bolts. But whoever installed decided to just put regular bolts in.

Oh well. All fixed now. Ground the notches that held the cam bolt washers and then welded on pre fabbed tabs of 1/4" hot rolled steel drilled with 9/16 holes After doing that front and rear installed new currie 8 arm adjustable arms

 

Mine (and many other people's) are also that way, and have never used cam bolts at all. With cam bolts (and usually only on the front lower CA's) you can actually knock out more of the tab to give you an elongated rectangular hole. But the square hole you posted is a factory hole.

Either way, doesnt matter, as you should have no issues now! lol

-Adam