Axle Shifting Under Load - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 03-19-2007
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Axle Shifting Under Load

Well, I have a new problem. Ever since the mini spool, which I knew I was going to have some seirous problems with...

If I take a corner, lets say right hand corner for example, my axle will shift about 1/2" off center (wheel will be closer to the pass side fender towards the front of the truck) and it makes my steering wheel go off to the left.

I'm basically dog tracking.

But if I make a left hand corner, it corrects this somewhat.



But I make about 3x the right corners as I do left, so I'm left w/ this dog tracking truck!!!

What can I do to fix it?

I was thinking traction bars/ladder bars or chevy springs?

I think I'm going to take out the spool for now, I don't think it's doing me much good ATM...

It's nice to have two wheels spinning, but I don't like dog tracking.

Anyone else have this problem?
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Old 03-19-2007
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is the rest of the set up stock? i wonder what is giving? did you install shackles? double Blocks?

a panhard bar is what is used in a coil spring setup to keep it located. i would find the weak link though.
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Old 03-19-2007
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check the bushings in your springs, or loose Ubolts.
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Old 03-19-2007
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the only way to keep it from doing that would be adding a trac bar.....but that is a bandaid fix on a leaf sprung axle.........personally since you don't just drive your truck straight, you need to take the spool out and get a locker.....something that allows the outter wheel to spin faster around corners.........not to mention that your tires will get eat up faster driving a truck with a spool on the street....

what is happining is there is sooooo much pressure on the inner tire when you turn that it trys to push the axle out from under the truck because the spool wont allow the inner tire to slow down around a turn......that is why it is shifting
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Old 03-19-2007
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Quote:
Originally Posted by lifted97ranger
the only way to keep it from doing that would be adding a trac bar.....but that is a bandaid fix on a leaf sprung axle.........personally since you don't just drive your truck straight, you need to take the spool out and get a locker.....something that allows the outter wheel to spin faster around corners.........not to mention that your tires will get eat up faster driving a truck with a spool on the street....

what is happining is there is sooooo much pressure on the inner tire when you turn that it trys to push the axle out from under the truck because the spool wont allow the inner tire to slow down around a turn......that is why it is shifting
Thats what I figured...

Well, looks like the spool is coming out...I think I got a sale for it anyway.

It's more or less just seeing pavement right now...we'll see though.
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Old 03-19-2007
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Quote:
Originally Posted by graniteguy
is the rest of the set up stock? i wonder what is giving? did you install shackles? double Blocks?

a panhard bar is what is used in a coil spring setup to keep it located. i would find the weak link though.
I have add a leaf, 3" superlift block, and 6400 shackle
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Old 03-19-2007
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Quote:
Originally Posted by jrpro130
I have add a leaf, 3" superlift block, and 6400 shackle

your pinion angle has to suck. you have way too much tip on it.

you cant run the superlift block and the shackle at the same time unless you have a ton of lift.
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Old 03-19-2007
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Originally Posted by zabeard
your pinion angle has to suck. you have way too much tip on it.

you cant run the superlift block and the shackle at the same time unless you have a ton of lift.
Your 100 percent correct. It sucks bigtime. I'm actually about to throw the 2" block on there, it's got way too much tip on there.

I just have to make sure I have all the bolts for the stock blocks though.
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Old 03-19-2007
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I am still looking at the JD traction bars, but I don't know if that would be a waste of money.

The more I"m thinking about it, I just need to find the weak link. I need 2 wheels spinning. Just in the last week I have probably needed it 10 times...at the least...
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Old 03-19-2007
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yeah i would swap that first.

also your Ubolts should be torqued to 100ft/lbs
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Old 03-19-2007
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Quote:
Originally Posted by jrpro130
The more I"m thinking about it, I just need to find the weak link. I need 2 wheels spinning. Just in the last week I have probably needed it 10 times...at the least...
then get a L/S or a locker.......but not a spool.....they are not designed to be on street driven trucks....
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Old 03-19-2007
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Quote:
Originally Posted by zabeard
yeah i would swap that first.

also your Ubolts should be torqued to 100ft/lbs
Hmm...well my ubolts definetly aren't at 100, I can tell you that!!!

Probably at about 60ft/lbs right now.

Well, I'm going to swap them this afternoon, see if I can fix my problem. I'll be an inch lower, but hopefully I can help some problems...



What about the JD traction bars?
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Old 03-19-2007
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your problem stems from the spool, not how you have the rear lifted.........yes you may have too much pinion angle, but that would only cause u-joint binding.....it wouldn't cause the axle to shift side to side.....

JD traction bars wont help side to side motion.....the will only help axle wrap......the only way to stop the side to side motion is to either: 1. lose the spool or 2. install a trac bar....
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Old 03-19-2007
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Quote:
Originally Posted by lifted97ranger
then get a L/S or a locker.......but not a spool.....they are not designed to be on street driven trucks....
I love my spool


I was just outside messing around, Ubolts are definetly loose when the axle shifts.

I think what I am going to do when I swap the blocks is get the axle dead center and torque to 100ft/lbs. I didn't know they had to be 100...

I just have to make sure I have all the bolts for the blocks.
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Old 03-19-2007
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Quote:
Originally Posted by lifted97ranger
your problem stems from the spool, not how you have the rear lifted.........yes you may have too much pinion angle, but that would only cause u-joint binding.....it wouldn't cause the axle to shift side to side.....

JD traction bars wont help side to side motion.....the will only help axle wrap......the only way to stop the side to side motion is to either: 1. lose the spool or 2. install a trac bar....

I think I found the problem, I just posted after you.

When my axle shifts, my u bolts are loose. So I'm guessing that my u bolts aren't tight enough. I'm going to jack the truck up, set it on jack stands, and torque to 100 ft lbs.

When my axle is straight, the u bolts are fine. When it shifts to the left, the right u bolts are loose, when it shifts to the right, the left u bolts are a tiny bit less tight than they were, not by much though.

That explains the sound I have been experiencing, like a creaking..
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Old 03-19-2007
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the duff bars will help some but i think this is more important first. then try the duff bars.
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Old 03-19-2007
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Quote:
Originally Posted by zabeard
the duff bars will help some but i think this is more important first. then try the duff bars.
I'm going to do some experimenting

Any more advice? I am going to put the stock blocks back in, and I'm going to straighten the axle with no weight on it, and torque to 100ft/lbs.
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Old 03-19-2007
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i cant think of any but remember if you are planning on chevy springs then the duff bars wont work forever.
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Old 03-19-2007
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Quote:
Originally Posted by zabeard
i cant think of any but remember if you are planning on chevy springs then the duff bars wont work forever.
Yup...I want the 5.5 ones. Either those or the ones maurice has, I like maurices b/c there is no drilling!!!
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Old 03-19-2007
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Originally Posted by jrpro130
Yup...I want the 5.5 ones. Either those or the ones maurice has, I like maurices b/c there is no drilling!!!
and the swap was super easy....take 1 spring off, put another on.....no blocks either
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Old 03-19-2007
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Quote:
Originally Posted by jrpro130
Thats what I figured...

Well, looks like the spool is coming out...I think I got a sale for it anyway.

It's more or less just seeing pavement right now...we'll see though.
I hate to say I told you so but...no, wait, hey, I LOVE to do that:

I TOLD YOU SO!

Seriously though, a spool does not belong on a daily driven truck, no matter what yahoo says it's fine and no problems, lol.
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Old 03-19-2007
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Originally Posted by n3elz
I hate to say I told you so but...no, wait, hey, I LOVE to do that:

I TOLD YOU SO!

Seriously though, a spool does not belong on a daily driven truck, no matter what yahoo says it's fine and no problems, lol.
Haha!!! You did tell me, you did tell me so!!!

But yahoo said it was ok

Well, I think I'm keeping it in for a little bit longer...I just have to figure out this problem and then I'm golden!
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Old 03-19-2007
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Originally Posted by lifted97ranger
and the swap was super easy....take 1 spring off, put another on.....no blocks either
6" lift springs right? Skyjacker?
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Old 03-19-2007
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Originally Posted by jrpro130
Yup...I want the 5.5 ones. Either those or the ones maurice has, I like maurices b/c there is no drilling!!!

taking out the rivets is what sucks
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Old 03-19-2007
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Quote:
Originally Posted by jrpro130
6" lift springs right? Skyjacker?
yup.....Skyjacker part # FR-36......they are 6" lift with the blocks and 4" lift without the blocks.......i only needed 4" in the rear......
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