Joey3571

So I just upgraded wheels and tires to 19x11 +79MM and 325/30R19. Here's the issue, on the driver side, the tire sits nicely in the wheel well about 1/8" from the fender. On the passenger side, the tire sits just outside the fender about 1/8". I thought maybe I was sent a +73MM wheel, but I swapped the wheels and the Passenger side is still slightly outside. Question is, has anyone ever seen this issue and do you think a simple alignment will resolve it? I never noticed anything wrong with handling and my old tires never wore funny. Just looking for some feedback.

ErnieN85

You will need an alignment but more also, the rear cradle needs to be moved over a bit. there are four bolts that hold the whole thing in. your shop will need to loosen it and shove it over there are pins in the frame to hold it in place and you may need to slot the holes a bit if it won't move enough. Then realign

Joey3571

Is this something that can happen frequently or could have come from the factory this way. I bought this 2010 used with 6700 miles on it and it was clean (no accidents reported) and it didn't appear to have been wrecked.
Just curious as to what can cause the cradle to shift.

ErnieN85

probably made that way there are tolerences and would not show till you upsized tires & wheels after all 1/8 inch is not much, this usually shows up when a track alignment is done (racers)

Joey3571

Thanks for your insight. I have an alignment guy looking at it now and I have forwarded your comments. Hopefully they can tuck it back in.

speedraider

its normal

most c6's are that way , rear end is over to the passenger side by a 3/8 inch.

Boomer111

I experienced this when I went with the LG Challenge rims and 305 width tires in the rear.

Enough to bother me and went back to OEM rims and tire size.

Mustangs have the same problem I am told.

It is not noticeable with stock set up but if you look close you will see the discrepancy even
then.

dennis50nj

if it bothers you put a spacer on the other side

Bill Dearborn

Is the off set at the front and rear of the wheel or is it just at the front? If it is just at the front the rear thrust angle could be off which would make the car dog walk just a slight amount. Thrust angle is adjustable with rear tie rods and is adjusted when setting the rear toe during an alignment.

Bill

Joey3571

It doesn't really bother me and I thought it was probably normal. I can live with it. Just wanted to make sure everything was normal. The alignment guy said everything was perfect after they did the alignment and showed me print outs of the work they did. If you're in Louisville, LFM is a pretty good place to take your ride for things as such. Thanks for everyone's input.

turbo2001

how the heck do you even notice an 1/8 of an inch

blkgs

Because one side is 1/8" inside the fender, and the other side is 1/8" outside, so it is more than 1/8" difference

Boomer111

With me set up one side was even with fender lip and the right side was out of lip.

This was with 305 width tires on 10 in rim but with non OEM off set.

With tires tucked inside it is not as noticeable.

Joey3571

Yeah, that's when I noticed it. I went with 325/30 PSS' on 11" and when I did, that's when I noticed it. I had an alignment done and it was corrected somewhat when they corrected the toe on the drivers side rear. It brought that tire more out towards the lip than it was. So, it looks pretty damn close now. I was just wanting to check with the members here to see if anyone had encountered this in the past with their upgrades. I'm happy to know that nothing is wrong with the rear end and that these come from the factory with a slight offset in the rear end.

06.Z51.MontRed.Vert

My concern would also be the sandblasting to the paint you are going to be doing to the tire that is sticking outside the fender.

Joey3571

APSIS Splash Guards.

TLTONEY

Does anyone have the torque specs on the rear cradle bolts? I plan to try and move mine towards the drivers side to get the tires center (the pass side sticks out a little) because I am running 315's on the rear.

TIA

JCtx

Remember only police reports get picked up by Carfax and such. Single-car accidents without a police report, like hitting a curb at speed (a frequent sports car accident), don't show up. That's why a Carfax and such is just ONE of the many tools a buyer needs to use before buying a car. A thorough PPI is a must as well. I'd only trust a Carfax to see if you're dealing with a leased car, and where it lived. And yes, I know this for a fact because I had a $10K+ claim on my M3 and never showed up on Carfax (and yes, I voluntarily disclosed it when I sold the car).

As far as the cradle misaligned from the factory, I wouldn't doubt that for one second. With GM's lousy tolerances, you'd have to have the entire tire outside the fender to be out of spec . Yes, I exaggerated a little, but unfortunately, not that much. But any decent alignment shop can leave the THRUST ANGLE at or very close to 0.00º, which is what you want. Alignment tolerances for the Vette as absurd, so you also need to tell the shop you want the job done a lot more accurate than the lousy GM specs, even if they charge you a bit more. Just the camber spec alone is -0.45 +/- 0.60º, if you can believe that. That's simply ridiculous. Good luck man.

ErnieN85

81 ftlb

gonzala

May 1, I got these installed at my shop with tune and new headers:
Vossen 19x9.5 silver with chrome lip fronts(N)
Vossen 20x11 silver with chrome lip rears(N)
245/35/19 Michelin super sport front tires(N)
295/30/20 Michelin super sport rear tires(N)

Upon inspection, I noticed the back tires were outside the rear fenders by about 3/8" on drivers side and 1/2" on passenger side. I mentioned it to the GM shop and he never has seen this before.
So, I figured it was up on jack maybe would setlle etc... but it has not. It doesn't pull so I figured it could just be the fenders were a little off.

I am glad to read this is NORMAL and I couldn't notice the difference with OEM sized tires.

Yet, mine seem to be more outside the fender than the other posts. Should I be concerned?

Any comments fro the experience or experts Vette owners shops? Thanks this forum is so darn helpful. My wife says I'm obsessing about the Vette since I'm always on the forum. I told her I am learning more and more about the coolest Car I have ever owned. And, I have had this first vette for almost 5 years now.