SS DNA

iTrader: (7)

I just got some 17x9.5 and 17x11 Black ZR1s for my NBM SS and I put the 17x11 wheel on and it doesnt fit. It hits the bump stop. Isnt supposed to fit without problems ???? I guess now I have to cut the bump stop. Is there anything else I can do ??? Do you guys think its because my car is in the air and thats why its not going in ?


Anyone with 11s in the back want to comment please ?

02TransAm/Batmobile

iTrader: (32)

i had the same problem with my TTM's, . DON"T cut your bumpstops, they are there for a reason, . you probably lifted the car up from the frame and that puts the frame and the wheel in a position that prohibits the wheel from sliding on, if you lift the car from the axle you will avoid this akward position . . the offset is different on the zr1's then on the ttm's which i believe will cause your wheel to be closer inside the wheel well, . . in this case, . . see if it rubs on anything, . if it does, grab a mallot and pound in the area so there will be no rubbing . .

leadfoot4

iTrader: (1)

Did you install an adjustable panhard bar? With a wheel that wide, the rear has to be accurately centered under the car, or you'll have clearance issues.

slowtealz28

+1 for jacking up the car from the rear. I searched about this the other day for about an hour and I came up with that if the car is NOT lowered, 315's should fit with no problems.

Xsta Z 28

iTrader: (2)

Rear axle MUST be supported . . . .

bone324

iTrader: (2)

I had the same problem. You will have to center the axle with the PHR, and lift the car from the rear. I tried the BFH mod with no luck. That wheelwell is strong! I know you can get SLP bumpstops that give you more clearance. I've also read here about people cutting their bumpstops in half IIRC. Regardless, it will fit.

ROLLN

just lift the back of the car up by the rear end and not the frame. that should be all you have to do for the wheel to clear the bumpstops.

SS DNA

iTrader: (7)

Well I got them mounted. I want to wash my car and then take pictures
And I also got an Adj. PHR. So I got to do a little centerign now.

silver02Z

iTrader: (19)

I love the 17x11 ZR1's out back. I've had 3 different sets of them LOL...

Mine was lowered 2" and they still fit fine. Just watch out for big bumps..

turners98ws6

i have a 98 ws6 with 17-11's zr1 and on a two post lift i cant spin them by hand.but that is the only problem ive had.

NVR KNO

i have the 11" zr1's in the rear too. i had no problem with mine. what is your offset?

SS DNA

iTrader: (7)

I cant remember the offset. I got them through Tomzwheels.

mxmatt137

I have 17X11 zr1's on my 2002 z-28 and the bumpstop IS an issue. For my dad and I both, the best solution was to cut the bumbstop off completely and make a new bracket that mounts the bumpstop in about 1-1/2". Then just weld the bumpstop back on and it shouldn't be an issue. Along with the bfh mod and a panhard rod, there is no more rubbing on mine or my dads. Good luck.

NVR KNO

i guess i got lucky with mine then. i have a 99 ss and i have no issue at all. i have 315 nittos on my 11inch rims and i know they run alil thinner then most, but i have had a true 315 on the back of my car too and i never had a problem with them either. i didnt have to do a bfh mod or a panhard rod. i dont know......

SoCal01z28

iTrader: (11)

i just took my wheels off the other day on a lift, and when i set it back down the bumpstop caught on the top lip of the wheel and wouldn't let the rear suspension down, they have to be put on with the axle around ride height

SS DNA

iTrader: (7)

Well mine are an issue but I figure I 'll just jack the car by the Rear end and thats it. It only rubs the rim if I jack the jack up from another point besides the rear end.

Thanks for everyones help!!!

SS DNA

iTrader: (7)

Guys its been awhile since I got my rims and I still have a problem.

I centered my rear and the lip of the bump stop still manages to hit my inner rim whenever I go into a pot hole or I make a sharp turn.

Would it be safe to just hammer the inner wheel well by the bump stop and try to push it just a little bit in ????


I need all the tips I can get!

smg267

iTrader: (23)

Does it sound like a scrape when you go around a corner to fast or hit a big bump? I bought the same set of wheels. I have a regualar panhard bar though. Mine only seems to scrape if I cut the wheel and take a turn at mach 1. I need to get under the car and figure it out too. My car is stock ride height. The wheels look ****** sick though.

bone324

iTrader: (2)

I'd search for SLP bumpstops.

SS DNA

iTrader: (7)

Well it does it when I make sharp turns but it also does it when I go in a hole.