2007 GT Rear suspension concern?

[Midlife Crises]

The axle stays put....... the back end of the car body moves left / right, as you shorten / lengthen the PHB. Moot point.

So you are saying twisting the turnbuckle does not move the earth. My bad!

 

[BM08]

The issue I have is that my left rear wheel is pushed forward and my right rear wheel is pushed back

 

[Midlife Crises]

The issue I have is that my left rear wheel is pushed forward and my right rear wheel is pushed back

If that is the case, you have something very wrong with the rear suspension. A bracket on the rearend housing could be bent or one of the pockets the lower control arms bolt into could be damaged. It would be a big help if you would post pictures of the underside of the car. Show how the relocation brackets and control arms are installed. Someone here may spot what’s out of wack.

 

[BM08]

If that is the case, you have something very wrong with the rear suspension. A bracket on the rearend housing could be bent or one of the pockets the lower control arms bolt into could be damaged. It would be a big help if you would post pictures of the underside of the car. Show how the relocation brackets and control arms are installed. Someone here may spot what’s out of wack.

See the weird thing is they got like this after I changed the control arms and lowered it

 

[Pentalab]

See the weird thing is they got like this after I changed the control arms and lowered it

To pull that off, the new control arms would have to be different lengths. Some pix would help.

 

[JC SSP]

Consider this… Lower control arms have a certain orientation which is required for proper install…

Again pics of your specific issue and what parts you installed would help us in providing a possible solution.

In reality, at this stage you’re better off taking the car to a reputable shop and/or returning it back to stock.

 

[BM08]

To pull that off, the new control arms would have to be different lengths. Some pix would help.

 

[Midlife Crises]

Good shots of the wheels. Now let’s see the control arms and relocation brackets attached to the rear end housing. From underneath, right and left so we can see what’s going on. Also, move the jackstands to the axle tubes so the rearend is supporting the weight of the vehicle when you are judging weather it is straight or not.

 

[BM08]

Okay I’m in class at the moment when I get home i will lift it up again

 

[JimC]

Actually a better shot would be a picture on ramps so that the suspension is loaded for the picture. If it is hanging, like in the pictures you posted, that doesn't really tell what is happening.

In fact, when you put the control arms on the car, did you install them that way? In other words, did you have the suspension unloaded with it raised on jack stands? That could be why your axle is off center. The suspension has to be under load when you tighten up the control arms.

 

[BM08]

Actually a better shot would be a picture on ramps so that the suspension is loaded for the picture. If it is hanging, like in the pictures you posted, that doesn't really tell what is happening.

In fact, when you put the control arms on the car, did you install them that way? In other words, did you have the suspension unloaded with it raised on jack stands? That could be why your axle is off center. The suspension has to be under load when you tighten up the control arms.

I lifted with the jack but then not sure if it was the correct way

 

[BM08]

Here pics with the jack stand on the axle tubes and yes I do know about the left rear control arm I was just testing something

 

[GriffX]

Left side: Wrong spring, broken spring, missing upper spring insulator?
Rule of thumb, the LCA should be parallel to the ground.

Or, lead or uranium inside the left rear panel

 

[Midlife Crises]

Now we’re on to something. You must have the lower control arms attached to the brackets using the same hole on each side or the rearend will be twisted. As far as the fender gap difference goes, if the front wheels are setting level and not influencing the load on the rear it is pretty clear something is not correct with the rear springs. Just like GriffX said, spring collapsed, broken or not the same on both sides.

 

[BM08]

Now we’re on to something. You must have the lower control arms attached to the brackets using the same hole on each side or the rearend will be twisted. As far as the fender gap difference goes, if the front wheels are setting level and not influencing the load on the rear it is pretty clear something is not correct with the rear springs. Just like GriffX said, spring collapsed, broken or not the same on both sides.

Oh really the springs I’m going to check tomorrow after class

 

[Samos3]

I don't see the upper bolts installed for the relocation brackets. There should be three bolts per side not counting the lower control arm bolt.

 

[BM08]

I don't see the upper bolts installed for the relocation brackets. There should be three bolts per side not counting the lower control arm bolt.

I did not know that

 

[Pentalab]

I did not know that

Did u read the detailed instructions ? The axle weight gets tossed on both sides. THREE bolts are used to bolt the LCA. Two on the side and one on the back end. Then the 4th bolt is used to bolt the LCA to the LCA relocate bracket, using one of the 3 holes available.

https://www.bmrsuspension.com/?page=products&productid=170

click on the 3rd pix, then blow it up. u can clearly see all FOUR bolts in the pix. The kit comes with 4 x long bolts...and 2 x real short bolts....PER side. They have to be installed in the correct sequence, and also torqued down correctly. Just follow the instructions.

 

[Dino Dino Bambino]

Here pics with the jack stand on the axle tubes and yes I do know about the left rear control arm I was just testing something

View attachment 111835

View attachment 111836

There are two problems that are immediately obvious when you look at the pics:

1. The relocation brackets aren't mounted the same way on both sides. I'll pictures of mine for comparison.

2. The LCA is mounted on a higher relocation bracket bolt hole on the left side.

 

[whitmanink]

There are two problems that are immediately obvious when you look at the pics:

1. The relocation brackets aren't mounted the same way on both sides. I'll pictures of mine for comparison.

2. The LCA is mounted on a higher relocation bracket bolt hole on the left side.

and there you go,,
even i didnt notice that lol
altho i just woke up drinking my coffie.