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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

Torsion bar Adjustment

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Old Jun 24, 2018 | 01:15 AM
  #1  
vince.stanton's Avatar
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From: Seattle, Washington
Torsion bar Adjustment

I just want to confirm I am doing this right. My 4runner has the type where I do not have have a lock nut, I only have one nut on top. **To adjust, I have to hold the top nut still while I crank left or right on the bottom bolt, correct?**
I have a bad passenger lean on my 4runner, and I recently got new rear ome lift springs and front BJ spacers. I cranked up my torsion bars but didn't do it accurately. Driver side is 1/2 inch higher than the passenger in the front, about 1.5inch in the rear. Either raising the passenger side or lowering the driver is the options.
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Old Jun 25, 2018 | 01:11 PM
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RJR
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From: Northern Colorado
Originally Posted by vince.stanton
I just want to confirm I am doing this right. My 4runner has the type where I do not have have a lock nut, I only have one nut on top. **To adjust, I have to hold the top nut still while I crank left or right on the bottom bolt, correct?**

This is correct. Clockwise (looking up from the bottom) raises the ride height. About 8-10 full turns of the bolt will give you roughly an inch of height change.Be careful when you put the wrench on the top nut, and don't ever get your hand above the bolt while you are turning it. If it decides to twist off, the top of the bolt will drive right through the floor pan, and you don't want any part of your body in the way. The bolts will turn more easily if you lift the truck by the front cross member to get the weight off the suspension. Also, bounce the front end hard after adjusting to settle it before making any measurements.

I have a bad passenger lean on my 4runner, and I recently got new rear ome lift springs and front BJ spacers. I cranked up my torsion bars but didn't do it accurately. Driver side is 1/2 inch higher than the passenger in the front, about 1.5inch in the rear. Either raising the passenger side or lowering the driver is the options.
You might check out the attached pages from the FSM. That will allow you to figure out exactly where your front suspension actually is set at, and isolate possible other issues relating to your lean. Given your description, it sounds like you have rear suspension issues as well, and you won't be able to totally fix the lean with the torsion bars.

You want the front suspension roughly centered between the upper and lower bump stops. If you get too much one way or the other, you'll have a rough ride.

Note: Because of your ball joint spacers, you'll have different numbers for ride height measurements vs. the FSM. However, the important thing is that the measurements be the same on both sides. If they are and you still have lean, you've got other issues that you shouldn't try to fix with the torsion bars.
Attached Files
File Type: pdf
Front_Wheel_Alignment.pdf (251.4 KB, 205 views)

Last edited by RJR; Jun 25, 2018 at 01:16 PM.
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Old Jun 25, 2018 | 01:31 PM
  #3  
vince.stanton's Avatar
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From: Seattle, Washington
Originally Posted by RJR
Given your description, it sounds like you have rear suspension issues as well, and you won't be able to totally fix the lean with the torsion bars.
What else could be making the truck lean so much besides the coils and fuel tank on the passenger side? Note, I also have already switched the coils from left to right, and right to left, no dice, still had lean. I do have the stock shocks installed.
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