Rear end location wrong? IM STUMPED!!!

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jrlhayton said:
Do think reaming out the spring perch holes a bit on both sides would help
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Don't do that.
The hole locates the rear and when they are out of round or wallard out the axle can get sideways to the body.

Also if the axle can move at all, it will wear the axle tubes under the u bolts and get looser. I had to have a couple housings welded up around the tube and the locating hole made round again.
 
Do you have the leafs in the proper side? RH will have 1 or 2 more leafs. Count them and see. It seems to me it is getting over thought here. OP only changed the leaf springs, It will be something simple
 
AJ/FormS said:
That's factory tolerance.
But, here's a hint.
>If you have an 8.75 rear end, then the axle end-play adjuster is supposed to be, on the passenger side. Have a look. Maybe yours is on the driver's side. The adjuster can be as much 3/8ths off-set, which is doubled when moved from side to side.I moved mine to the other side, which got it nearly centered.
>Also, pop the wheels off and measure the exct backspace of each, maybe you can get some change there. On my 10" Rally wheels, I had to cut the spider out of one of them, and move it over a hair, to get the sidewall off the fender lip.
>And finally, if the quarters on your car, are not original, some guys will just install the new patch-panel, OVER the old one, and there it is, lol.

Altho your story is somewhat unique.
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All true and good advice. I ended up with the same problem after replacing an entire quarter panel, but only had about a 3/8 difference. Try taking a close look at your 1/16 side to see if it's been replaced or patched. If I ever do that again, I'll fit the new quarter with the new wheel/tire on. Also, the width of the lip on a repop can be wider than OE. If your thrust angle is OK, I would just cut a little bit off the 1/16 side to get better sidewall clearance. Nobody can see both sides at once.
 
I am running Mopar Performance oval track leaf springs. These are about 1/2" shorter than stock and require a slightly longer front leaf spring mount.
1736005820862.png

A Body with Mopar Performance Oval Track Leaf Springs​

Item #: MREAR118KIT

Write a Review
Price: $145.99 Leaf Spring Front Hanger Kit

They also allow for ride height adjustment which can be useful. You can also put shims behind the mount to space it rearwards for even more clearance. Worked for me.
 
Your car came with skiney tires, you added wide tires. Most all my old Mopars were built on a Fri. by a group beer drunks, so the axles were never centered ever anyway!
 
hemifiedbird said:
Do you have the leafs in the proper side? RH will have 1 or 2 more leafs. Count them and see. It seems to me it is getting over thought here. OP only changed the leaf springs, It will be something simple
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This might be a possibility! Was thinking about doing this. As for the springs, they're the same on both sides. I put in Hotchkis leafs with 1" drop and geometry corrected!
 
360notch said:
All true and good advice. I ended up with the same problem after replacing an entire quarter panel, but only had about a 3/8 difference. Try taking a close look at your 1/16 side to see if it's been replaced or patched. If I ever do that again, I'll fit the new quarter with the new wheel/tire on. Also, the width of the lip on a repop can be wider than OE. If your thrust angle is OK, I would just cut a little bit off the 1/16 side to get better sidewall clearance. Nobody can see both sides at once.
Click to expand...
The clearances on both sides were the same before I changed the leaf springs.
 
RLF Cuda said:
I am running Mopar Performance oval track leaf springs. These are about 1/2" shorter than stock and require a slightly longer front leaf spring mount.
View attachment 1716348012

A Body with Mopar Performance Oval Track Leaf Springs​

Item #: MREAR118KIT

Write a Review
Price: $145.99 Leaf Spring Front Hanger Kit

They also allow for ride height adjustment which can be useful. You can also put shims behind the mount to space it rearwards for even more clearance. Worked for me.
Click to expand...
The issue isn't front to back its side to side clearance issues!
 
360notch said:
All true and good advice. I ended up with the same problem after replacing an entire quarter panel, but only had about a 3/8 difference. Try taking a close look at your 1/16 side to see if it's been replaced or patched. If I ever do that again, I'll fit the new quarter with the new wheel/tire on. Also, the width of the lip on a repop can be wider than OE. If your thrust angle is OK, I would just cut a little bit off the 1/16 side to get better sidewall clearance. Nobody can see both sides at once.
Click to expand...
Yeah it's all good now, the tubs accept 325/50-15s on 10s.
 
jrlhayton said:
This might be a possibility! Was thinking about doing this. As for the springs, they're the same on both sides. I put in Hotchkis leafs with 1" drop and geometry corrected!
Click to expand...
Original had 1 or 2 extra leaves depending on applications, I am not familiar with Hotchkis. Being said for all the time it takes if your going to swap side to side. lay them out beside your old springs and measure them up. You may see a difference on the floor. If not slide them back in and see how they fit. To me it sounds like something simple. I would compare center pin location with the old springs and make sure(double check) its located on the axle properly
 
jrlhayton said:
The clearances on both sides were the same before I changed the leaf springs.
Click to expand...
Whoa! I apologize for missing that.

Because the front of the springs are so short and stiff, the problem is likely somewhere between the hanger and the mounting pin, assuming no changes to anything else.
 
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