Question about 1997 Chevrolet K1500

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Torsion Bar Adjustment

I have a 1997 Chevrolet K1500 z71 with 265/75R16 wheels on it and every time I crank the wheels all the way to one direction, they rub. I was wanting to crank the torsion bars a little bit so that the front sits a little higher. I was wondering how to go about it and how far to crank them. Suggestions would be much appreciated.

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Remember if you do five turns on the right side do five turns on the left side.
First, get both front wheels off the ground (jack the truck up from the frame). Look underneath, at the tortion bar and follow it back to the cross member. Recessed inside that cross member is the adjuster. Turn the bolt clockwise to raise truck. After five turns on both bolts let the truck down and see how much space is between the lower control arm and the rubber stopper. You should see about an inch. The upper control arm should not touch the frame and as well, there should be about an inch of space there too.

Posted on May 13, 2010


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Posted on Jan 02, 2017


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You will probably find a how-to video on youtube.

Mostly it is a matter of setting the suspension to a specified distance as per manufacturer's instructions and then sliding the torsion bar into the splines.

Sometimes there is a trim height adjustment for fine adjustment after the vehicle is back on the wheels.

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I didn't mark the torsion bar when I took it out, how do I install it without the marks

jack the car right up with the wheels off the floor
install the torsion bar with the adjuster bolt unscrewed all the way off
fit the bar and lower the car back onto the floor so that all the weight is on the torsion bar
it should be sitting a bit low at this point
adjust up the adjuster bolt to when it sits level
if there is not enough adjustment the jack up the car again
let the adjuster right off an this time use a pipe wrench ( stiltsons ) to turn the bar against the stop plate a spline then insert it into the housing
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How to adjust torsion bar for Dodge Dakota

jack the front right up until both wheels are free of the ground
place on jack stands as you have to go under the vehicle and apply some force
loosen of the lh bar and twist it in an anti clockwise direction and install it with this tension ( use stilsons)
now do the rh bar the same but tension it in a clockwise direction
sufficient tension will be when you see the wheel start to lift as you turn the bar with the stilsons ( will require some effort so use a bar on the wrench)
lock them at that point
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Changing top wishbone arm on toyota hiace van 1997

I'll add this answer for anyonelse considering doing this.

Firstly, this really isn't easy even if your reasonably competent you will need the right tools. i.e. breaker bar (a biggun), blow lamp, wire brush, good socket set, pliers, big hammer, long handled 22mm spanner pref 2. Grease, for starters.

I have just done this to a 2003 hi ace.

1. Have a strong cup of tea.

2. Jack up vehicle take of front wheel and place on axle stands / blocks.

3. The torsion bar adjustment is located in front of the fuel tank and is a length of threaded bar with 2 * 22mm nuts on it. Take a measurement of where the torsion bar is taken up to. This ideally should be checked and reset, but an approximation will do for now.
Release the tension in the torsion bar. I did this with a combination of heat (mind the fuel tank and lines). Leverage and swearing. There is an access hole in the floor pan to get at the top end of this bolt, however I managed with out due to having converted my van in to a camper making access really tricky.
If this part hasn't made you cry it is worth proceeding.

4. Disconect torsion bar where it joins the wishbone.

5. Remove split pin from wheel hub assembly and remove nut,

6. Remove two bolts on the chassis. On the passenger side (UK), You will either have to remove the fuel filter system or try and work through the little hole inside the wheel arch. (lost a lot of knuckle skin at this point!), Drivers side was easier.

7. Persuade the wishbone to come away from the hub assembly, also quite hard!

8. Refit in the reverse order, tensioning the torsion bar to previous settings. Note: to make life easier make sure you clean and grease all of the threads.

9. Make sure you get the wheel alignment checked, and you should also get a real mechanic to look over what you have done before your wheel falls off on the motorway and you crash into a bus full of nuns / orphans.

10. have a beer, you have deserved it, just don't drive after.

n.b. I am not a real car mechanic, but i do work on big boat engines and pontoon systems and can spit a good distance. Please don't blame me if it all goes wrong. All of the other advice on the net says don't try this at home, and they have a good point.

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What is the torson bar on jimmy and where can you get the part for it?

1995-2005 Models NOTE: The following procedure requires the use of the torsion bar unloader tool No. J-36202 or equivalent.
  1. Raise and safely support the vehicle.
  2. Remove the transmission shield, if equipped.
  3. Install a torsion bar unloader tool to relax the tension on the torsion bar adjusting arm screw; record the number of turns necessary to properly install the tool. Remove the adjusting screw and the unloader tool.
  4. Unfasten the lower link mount nut from one side, then disengage the torsion bars. NOTE: Note the direction of the forward end and side of the torsion bar being removed
  5. Remove the lower link nut from the opposite side.
  6. Remove the lower link mount, upper link mount nut, upper link mount and then unfasten the torsion bar from the frame.
To Install:
  1. Install the torsion bar and support.
  2. Install the upper link mount and mount nut.
    • Tighten the nut to 33 ft. lbs. (45 Nm) on 1995-96 models and 48 ft. lbs. (65 Nm) on 1997 and later models.
  3. Place a jack under the torsion bar to release tension, then install the lower link mount bushing and nut.
    • Tighten the nut to 13 ft. lbs. (18 Nm) on 1995 models, 50 ft. lbs. (68 Nm) on 1996-98 models and 37 ft. lbs. (50 Nm) on 1999 and later models.
  4. Install the torsion bar unloader tool and tighten the tool against the adjusting arm the same number turns recorded earlier, then remove the tool. This loads the torsion bars.
  5. Install the transmission shield, if removed.
  6. Remove the jackstands and lower the vehicle.
  7. Check and adjust the Z height as outlined in the wheel alignment portion of this section.
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1 Answer

How to adjust a torsion bar

Step 1 Jack up the vehicle on the wheel to be adjusted, and set the frame rail onto a jack stand. This is to release the stress on the torsion bar so it can be adjusted easily.
  • Step 2 Crawl underneath the vehicle and locate the torsion bar mount on the frame. There will be a bolt in the center of the mount, pointing upward. This is the adjusting bolt, and it will accommodate a large-sized socket driver.
  • Step 3 Adjust the torsion bar. Turning the adjustment bolt clockwise will tighten it, raising the amount of load that can be placed on the bar. This will raise the vehicle when it is taken off the jack stand. Turning it counterclockwise will lower the available spring rate and cause the car to sit lower. Turning it too far in either direction can cause problems, so follow the specific vehicle's manufacturer guidelines when making wide adjustments. Normally, only one full turn will be enough to give the desired result.
  • Step 4 Lower the vehicle, and check the clearances of the frame to the ground. They should be the same for both sides. If they are not, then more adjustment will be necessary to the torsion bar adjustment bolts.


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