Does tightening the torsion bar lifts the truck or lower it. I have 2002 nissan frontier, I took this truck to get it done to the dealer, but yet still wasn't fix. Can you guys help me.

Thanks
JT

Tightening the torsion bars lifts the front end of the truck, and reduces the dampening ability of the bar.

BTW.

If you took it to the dealer, and they didn't fix it, take it back and tell them. If it's something covered under warranty it's better they fix it than you messing around with things that might let them blame you to get out of covering it.

If you don't feel like trying with the dealer:

Make sure it isn't a bad shock first. The stock ones are terrible.

If you don't feel comfortable working on torsion bars then don't mess with them. They're loaded springs with lots of kinetic forces stored in them and could kill you if you don't know what you're doing. If you still want to adjust them here are some tips to help.

Make sure your truck is on level ground before you adjust the torsion bars. If you can't find level ground at your house, grab your 17mm, 19mm wrenches and sockets and go find a parking lot somewhere.

Bring a measuring tape. Measure your vehicle height from the front of the frame (near where the rear of the a-arm is). There are more precise ways of measuring this height using a-arm angle, but the frame will do for now. If it's the same on both sides, then it's some other problem, so don't mess with the t-bars.

If the one side actually is lower then tighten the adjusting bolt 360 degrees, 2-3 times. Now you need to bounce the front end of the truck to get the suspension to settle. Check the frame height again. Adjust as necessary. You will reduce the number of turns as you get closer. If you went over, just back off the bolt some more. Make sure your locking nut at the top of the adjustment bolt is tight before you finish.

Don't measure your vehicles height from the body as this will be inaccurate.

BTW, where did you measure to determine your truck is off by half an inch? And what did the dealer say when you picked it up from them?

Originally posted by Schludwiller
BTW.

If you took it to the dealer, and they didn't fix it, take it back and tell them. If it's something covered under warranty it's better they fix it than you messing around with things that might let them blame you to get out of covering it.

Don't measure your vehicles height from the body as this will be inaccurate.

BTW, where did you measure to determine your truck is off by half an inch? And what did the dealer say when you picked it up from them?



Schludwiller has a good point, it could just be a misaligned front bumper. If that's where you checked it from. I've read/heard you should check from upper bumpstop to the upper control arm.

Just so happens I had to adjust mine today. Forget what I said about the 17mm wrench/socket. You don't need it. Just seems like most things on the truck require a 17 and a 19mm so I just always grab them.

I measured from lower a-arm mounting point. Not the a-arm, but right below where it mounts. That got me close to the point where the height would change the most. Technically you're supposed to measure the distance between the center of the a-arm bolt and (I think) the flat section of the bottom of the a-arm by the wheel. I'm sure Brent will correct me if I'm wrong. Mostly people use that measurement to get them within Nissan tolerances so they don't get dinged on warranty repairs.

Yes, bumpers can be misaligned. I've seen a lot of them. Also people often measure incorrectly from the fender well, which can be all over the place depending on if you turned your wheels, parked on an uneven surface, etc. That's because the shocks come into play so much there.

Thanks guys, I went and adjusted my torsion bar today and got it set to where I wanted it. Listen to what the dealer did to my truck, the gentlemen there said that they adjusted the bed which, I wasn't too happy about. He said that they tighten all the bolts on the bed and that's all it needed.

I measured from the bumber and on top of the rim, the sag was noticeable and that's why I wasn't feeling good every time I looked at it.

Pinoy, salamat

Thanks Again
JT