My new '04 GMC is leaning on the drivers side.

Measuring all 4 wheel well flares. From ground up through the center line of the wheel to the bottom of the fender flares.

Front two are withen 1/16"

But the rears are 1" off.

Drivers side rear is exactly 40" and the passenger side rear is 41".

Gas tank is currently less than 1/4 tank, so it really shouldn't affect it much.


I have seen mention of this before, but I am unable to find it in a search. I have seen several complaints about this in different fourms, but what exactly is the fix?

Is it adjustable via torsion bars? Is that 1/16" up front affecting the rear THAT much?

Is it caused by driveline torque?

I really can notice it just sitting in a parking lot.

Any suggestions?Edited by: Lawnboy

I have noticed this on my truck also Lawnboy. Never measured it until now. Both passenger sides are 1/2" higher than the opposite drivers sides. Maybe I'll throw a couple of concrete blocks in the passenger sidehttp://www.dieselplace.com/forum/smileys/Big Smile.gifEdited by: Lakedaisy

Count the rear leaves you said it in rear springs. Are they the same? or does it have broken leaf? I had a broken leaf on one of my old trucks that made it lean.

I have noticed this in all cars and trucks. I think it is a defect with boats and trucks. My truck leans to the driver side and my boat leans to the driver side. In fact all trucks and boats lean to my side not matter which side i'm on. I wish manufacturers could figure this phenomenon out.


Until then i just keep on leaning.

Leaf springs are fine as far as no damage and being the same on both sides.

Still think torsion bars may be able to adjust, but which way, and why are they like this to begin with?

Sounds like you need to reduce your carbohydrate intake! That means no chips either!





Or get a passenger that weighs more than you.

When you load the lawnboy load it a little more to towards the passenger side

I know guys that this could definately be the problem, but I barely push 180....thats after the chips!
http://www.dieselplace.com/forum/smileys/Approve.gif

Curious, my truck does the same thing.. I thought it was just my big ol' butt... guess not (whew!).


Probably the frame tweaked due to all that torque! :-)

Tom it's not unusual to have a new one delivered not sitting correct. Stuff settles out in shipping sometimes. It may have been close on the assy line but changed as the suspension settled in.

Yes... all you do is adjust your bars. Two big bolts in the middle of the truck at the crossmember where the bars hook in.

Remember to be on as level and flat an area as possible, preferably a concrete surface.

You should be measuring frame points to the ground. To get the back right corner down you have to raise the front left. After each adjustment (sneak it in) jump on the bumper some to help it equalize. When you think you got it, take it for a ride than check again.

Hoot,

Thanks for the reassurance, and straight up answer.

Thats what I was figuring. Bring up the opposite corner a tad. It happens to be the 1/16" lower side anyway. Probably only take a few turns.

I'm familiar with the torsion bar system, as thats what my '90 has, and play with that each season due to plow and tire size.

mine did the same thing. I ended up having a bad torsion bar support bushing. The dealer replaced both actually, adjusted the ride height to stock, and re-aligned it. Even keel now...

well - mine is "off balance" also... I have not done anything about it yet.


I wonder if it's designed that way intentionally? Maybe it has something to do with the crown of the road? So the truck looks level when the road is crowned?? just a guess...


Stefan

Well Lawnboy, the concrete blocks didn't work! Just kiddin'.


I'm glad you asked the question. Adjusted my torsion bars this afternoon. 4 turns down on the passenger side and 2 turns up on the driver side. Damm, the truck is level for the first time ever. Guess I just got used to seeing one side higher than the other. Thanks to all.

If the bushing for the torsion bar was bad you would hear a banging noise like a broken shock. I agree with hoot

ya, I did hear a noise along with the lean and it did sound like a bad shock.


If you do some serious adjusting with the torsion bars, shouldn't you have it aligned?

What bushing? I thought both ends of the bars were mounted solidly in steel parts with hex holes. I don't remember any bushings on either end.

The bushings I am talking about are what the Torsion Bar cross member mounts to inside the frame rails.

As said earlier, try measuring from couple of different surfaces. The cement floor in my garage "appears" to be level, but I could never measure the ride height on my race car in the garage. On that floor, my ride height would vary from 1/4" to 1/2" when measuring at all four corners of the car.

The bushings I am talking about are what the Torsion Bar cross member mounts to inside the frame rails.

There is a cast iron pork chop but i didn't know there were any kind of bushings there.

well - mine is "off balance" also... I have not done anything about it yet.


I wonder if it's designed that way intentionally? Maybe it has something to do with the crown of the road? So the truck looks level when the road is crowned?? just a guess...


Stefan








Stefan,


I was wondering the exact same thing!


This seems to be a consistent finding, I can't help but think it is intentional to compensate for the crown of the road.














Kevin

As for the floor being 100% level....

I'm measuring from the ground directly next to the tire then up the C/L of the tires to the underside of the fender flare. I know its not the most "accurately toleranced" portion of the truck, but it is the part least affected by the terrain.

I'll adjust them on a totally flat surface and index of of some part of the frame for a measurement.

He means the bushing that is on the torsion bar adjuster crossmember where it bolts to the frame, not on the actual torsion bar...

He means the bushing that is on the torsion bar adjuster crossmember where it bolts to the frame, not on the actual torsion bar...


EXACTLY.....Sorry Hoot, I don't explain myself very well. Thank Nar for helping me clarify that