541JIM

So these are my mods:
Eibach pro kit
Bilsteins
Umi panhard

Just installed 17x11 zr1 with 315/35 tires. Grinded bump stop and not sure if BFH will be needed. My problem is that once on the ground it is now sitting approx 4-5" higher than it used to in the rear. I have quadruple checked to make sure the rear was not hung up on anything and also pushed down on the rear to check spring rate, no issues.

Any help would be much appreciated. 2 hours of searching and no answers

JakeFusion

iTrader: (7)

4-5" higher? Then something is most definitely binding. The 315/35 is no taller than stock.

If you could post a picture under the car that would be useful.

5.slow99

have you tried to roll the car to make sure the inner tire isnt rubbing the inner fender. i agree it sounds like something is definitely binding up there

BOBS99SS

iTrader: (2)

I agree with others,

ramairetransam

iTrader: (18)

did you tighten suspension parts with th suspension unloaded , that could cause the problem or something could be installed wrong .

BIG_MIKE2005

iTrader: (116)

Good lord, 4-5" higher, something is in a bind. There is no possible way just swapping to a 17x11 with a 315 would raise the height, especially not with the lowering springs installed. Hell you wouldn't even gain that much height swapping to 19" wheels, LOL.

I'd be looking over my suspension again, it's definitely not the wheels/tires.

Brutal Boba Fett

x2 on this. let us know what you find.

pics?

scj

iTrader: (89)

Cut bump stop of for just ground it? I bet the bump stop section of the car itself is sitting on the lip of the wheel.

bufmatmuslepants

iTrader: (3)

I bet your springs are not sitting in the pockets on the body.

scj

iTrader: (89)

Even if the springs were sitting on top of the pockets that wouldn't raise the rear but an ich or so.

JakeFusion

iTrader: (7)

I'm having a hard timing imaging the LCAs would even connect if the car is 4" in the air?

scj

iTrader: (89)

You've never seen a stock Fbody?

Storm Trooper

iTrader: (11)

I would say its the bumpstop bracket is getting caught on the back part of your wheel. Get up under there and see! lol

Jefro6996

iTrader: (21)

I'm guessing the wheel is sitting on the bump stop. I'm guessing you put the wheels on with the suspension unloaded and the bumpstops cleared and when you loaded the suspension by lowering the car the bumpstops hit on the tire on wheel. Clearance the bumpstops more or remove them. Mine have been gone for 6-7 years and never had a problem. When i put on my 17x11 i couldnt get the wheels on unless the suspension was loaded since the bumpstop sits inside the wheel. so i removed them.

AnotherWs6

iTrader: (17)

So he registered just so he could post his question I assume. Doubt he'll be be back. Shame, I would have loved a pick of his car jacked up 5 inches in the back and would also like to know what the car was stuck on. Personally I would have spent the time he spent searching on the internet actually looking for the problem. My two cents.

cdubbzz

iTrader: (11)

pics?

camarokid91

Put some weight on the back of the car it is just hanging on the bump stops.

Sunsetmaro

iTrader: (6)

Pics would be awesome. I had black 10.5 z06 wheels on my car, with the pro kit about 4 years ago. I cut out the bump stops. Around corners The wheels would rub on the inner wall of the wheel well. 11's I can only imagine. If the car is raised 4-5 inches, that sounds like you could crawl under the back, enough to see if anything is hitting. Get under it and see where its rubbing. Im sure its making scuff marks somewhere.

Siciliano15

iTrader: (7)

yea and dont get under that car or stick your head in the wheel well unless you put a few jacks or cinder blocks under it first... i can see it now he gets under there and the car falls on him.

JakeFusion

iTrader: (7)

Interesting that he started this thread (with his only post) and disappeared. What the?