Torsion bolt kit (4WD ONLY)
(OEM)
When you change or are adjusting the torsion bars it's a good idea to have new hardware. Years of use and extremely long threads on these bolts could get damaged and unusable. if you're changing the torsion bars on the 1988 to 1995 4x4 IFS Trucks and 4Runners this kit is a must.
OEM Toyota Part #:
- (2) Torsion Adjusting Bolts: 90101-12159
- (2) Torsion Adjusting Nuts: 90179-12074
NOTE: This is a kit, it services one vehicle, one bolt and nut for each side. Does not fit 2WD vehicles.
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- 1988-1995 Pickup 4X4
- 1988-1995 4Runner 4X4
- 1993-1998 T100 4X4
To open a printable PDF version of this instruction CLICK HERE
The torsion bar adjuster bolts are located under the truck near the frame rails about 10" back from the transfer-case cross member. Spray the bolt threads with a penetrating spray lube for easier removal. Jack up the front of the truck at the front IFS cross member to get the wheels off the ground and to let the strain off the torsion bars. This must be done or you will destroy the adjuster bolts. Use jack stands remember safety first.
Caution, if you have a '86-'88 you may have a lock nut that must be removed before removal or adjusting your torsion bars. See picture below.
To remove or adjust the torsion bolts, you will need a 22mm 6-point socket and breaker or cheater bar and a 22mm wrench to hold the nut in place. Put the lower spacer on the adjusting nut. Liberally apply anti-seize or grease to the adjusting bolt before installing it: this will make adjusting it now and in the future much easier. Then install the bolt up through the mount and upper spacer. When everything's in place, reinstall the top nut and tighten it down. There is no set torque value or number of threads to guide reinstallation, so tighten until approximately 1/2" of the bolt's thread is visible above the nut. Look at the upper nut when doing this, it should not turn, the bolt should turn inside without turning the nut.


NOTE: Don't adjust too far! You can only adjust the torsion bars up to a point, beyond that, problems will be encountered including: harsh ride, increased axle shaft and axle boot wear. Most trucks and 4Runners are set at the factory to about 13.5" - 14" from the top of the rim to the fender lip. You can adjust the bars up to a measurement of 15" (not including any installed lift) with only a slight loss of ride comfort.
Caution, vehicles with ADD front ends we recommend only 14" Drive down the street to set the bars in place. Measure the distance between the fender and the top of the rim on both sides (on level ground) and make adjustments on one side or the other until they are the same height.
55 Reviews Hide Reviews Show Reviews
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Went in with no issues
Best product ever good price
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Yah
Fast and friendly shipping
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Home
Don't know I missed you until now. Glad I found a home to by parts for my old and new Yotas.
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amazing deal!
Everything about this was perfect. Right part, right price, and fast shipping.
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Perfect match
Having to do upper control arm bushings, I removed the old torsion bar adjusting bolts which were in terrible shape. I found these replacement ones on ice performance and they were a perfect match! Thank you!
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Just what I needed
After attempting to adjust my torsion bars on my 1993 4x4 pickup, and snapping the passenger side bolt, which sent it about an inch and a half through the floorboard, I was very happy to find these bolts. Exactly the same as what came with the truck, and fit perfectly.
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Replacement torsion bolt kit
Great pieces that fit exactly for what I needed when the dealer could not source them since the were "discontinued" and the fastener store could not come up with anything close was surprised they were only a grade 5 bolt though but are holding up strong for 33's on a 4" lift
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Torsion Bolt kit
I needed a new one to replace the frozen drivers side bolt. Getting the old stuff out was far more difficult than putting the new stuff in which went great!
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Very Quick
I ordered these about a week ago and received them neatly packed and bubble wrapped. I was very surprised to see it here so quick. stuff normally takes a week just to get here from Edmonton, which is about a 3 hour car ride away. If I had the money to buy some of their big parts I wouldn't hesitate based on this experiance.