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-   -   Rear axle question (https://www.ford-trucks.com/forums/1337339-rear-axle-question.html)

rews2 09-22-2014 12:25 PM

Rear axle question
 
I was under my truck this weekend and noticed the rear axle may not be centered. While sitting on the ground behind the truck looking at the rear axle I noticed that clearance of the inside of the tire to inside of wheel tub is greater(more) on the passenger side than on the driver side. Same size tires & wheels on both sides.
Question is this normal/right/the usual as to how the rear end is set up from the factory?
As I remember my 87 f250 4x4 was equal spacing from tire to wheel tub and she was lifted with 35" mud terrains. Same on my 64 2x4 had factory split rims with equal spacing. If it's something that is wrong I can address it no problem just don's want to start tearing down the axle and suspension set up if this is some sort of engineered idea. Doesn't seem right to me and possibly something out of whack from one of the PO's.

JEFFFAFA 09-22-2014 01:22 PM


Originally Posted by rews2 (Post 14684999)
I was under my truck this weekend and noticed the rear axle may not be centered. While sitting on the ground behind the truck looking at the rear axle I noticed that clearance of the inside of the tire to inside of wheel tub is greater(more) on the passenger side than on the driver side. Same size tires & wheels on both sides.
Question is this normal/right/the usual as to how the rear end is set up from the factory?
As I remember my 87 f250 4x4 was equal spacing from tire to wheel tub and she was lifted with 35" mud terrains. Same on my 64 2x4 had factory split rims with equal spacing. If it's something that is wrong I can address it no problem just don's want to start tearing down the axle and suspension set up if this is some sort of engineered idea. Doesn't seem right to me and possibly something out of whack from one of the PO's.

I am assuming some PO bought a used wheel with different backspacing.

rews2 09-22-2014 01:25 PM

No, same size wheels & tires all around. After market aluminum.

JEFFFAFA 09-22-2014 01:29 PM


Originally Posted by rews2 (Post 14685119)
No, same size wheels & tires all around. After market aluminum.

Maybe same diameter and width, but are you sure the back wheels both have the same backspacing?

rews2 09-22-2014 01:43 PM


Originally Posted by JEFFFAFA (Post 14685126)
Maybe same diameter and width, but are you sure the back wheels both have the same backspacing?

Visual only I haven't pulled the rears yet. I need to do brakes very soon though. Looking towards the trans from the axle driveshaft looks straight, again visual no measurements done. Truck drives fine relative to the age my no strange wobble at high speeds.

crazed87bronco 09-22-2014 09:01 PM

Time to break out the tape measure and do some verifying. Could be different back spacing like Jeff said. by mistake somehow maybe 2 different offsets were sent out. Also could be your bed shifted or rear axle pushed to the side. Check your leaf perches that they weren't ever touched by a PO. If they stock and are still welded fast then the problem is above somewhere. Start on the axle and start measuring and compare with what younger on the other side until you find where your getting the difference at. I have seen in the past the axle centering bolt on the leaf springs shears/rusts off allowing the axle to shift over since only thing holding it in place then is the u bolts.

351Cleveland C4 09-22-2014 09:45 PM

Maybe Elwood parked your truck one time and came in a little too hot.


rews2 09-23-2014 10:45 AM


Originally Posted by crazed87bronco (Post 14686110)
Time to break out the tape measure and do some verifying. Could be different back spacing like Jeff said. by mistake somehow maybe 2 different offsets were sent out. Also could be your bed shifted or rear axle pushed to the side. Check your leaf perches that they weren't ever touched by a PO. If they stock and are still welded fast then the problem is above somewhere. Start on the axle and start measuring and compare with what younger on the other side until you find where your getting the difference at. I have seen in the past the axle centering bolt on the leaf springs shears/rusts off allowing the axle to shift over since only thing holding it in place then is the u bolts.

Okay will do. It will be a couple weekends till I can get to it I've got some family stuff coming up.


[QUOTE=351Cleveland C4;14686248]Maybe Elwood parked your truck one time and came in a little too hot.

LOL, yeah it's completely possible ole Jake and Elwood parked it at some point. I know the PO did a great job striping the front fender with a hazard pole...no mistaking hazard yellow.

JEFFFAFA 09-23-2014 11:55 AM


Originally Posted by 351Cleveland C4 (Post 14686248)
Maybe Elwood parked your truck one time and came in a little too hot.

The Blues Brothers - How to park like Elwood - YouTube

Bwa-ha-ha! I tried to REP ya for this 351. Darn forum wants me to spread it around 1st. Busted me up!


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