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Widest rear tire???

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Old Mar 5, 2008 | 04:44 PM
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Widest rear tire???

I am looking into buying a set of Crager SS rims, the rears are 10 inch rims, so what is the widest I could run? they were on a 2nd gen and he said they would rub under hard cornering... do the 3rd gens have more/less clearence? any help appreciated...
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Old Mar 5, 2008 | 05:01 PM
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Re: Widest rear tire???

I have 10" rims with a 12" tire(295) the do rub like hella bad so what I did is put air shocks and raised my rear end .that worked really well
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Old Mar 5, 2008 | 05:10 PM
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Re: Widest rear tire???

I run 275/40/17 with no rubbing

Seth
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Old Mar 5, 2008 | 05:25 PM
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Re: Widest rear tire???

these are 50's, does this change whether or not the rubbing will be worse?
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Old Mar 5, 2008 | 05:27 PM
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Re: Widest rear tire???

if you run 275 yopur in the green as far as I know
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Old Mar 5, 2008 | 06:48 PM
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Re: Widest rear tire???

what does everyone think the ideal tire size would be for the 15" rim? The wider the better... also 275's wont stick out too much will they?
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Old Mar 5, 2008 | 06:59 PM
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Re: Widest rear tire???

my rear rims are 18x10.5 wrapped with 295/35/R19 and they fit nicely
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Old Mar 5, 2008 | 07:07 PM
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Re: Widest rear tire???

hmmm, is there a difference between the grizzleB and 25thZ28 wheelwells? he says they rub... I have an 83...
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Old Mar 5, 2008 | 07:08 PM
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Re: Widest rear tire???

I've run the BFG 295/50R16s on the back of my old 92, with no problems, and I know a guy who currently is right now.

I'm kinda eager for my rear tires to wear out. I "help" that out a bit!
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Old Mar 5, 2008 | 07:27 PM
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Re: Widest rear tire???

so another 295 on a 1992... anybody with other years run 295's? is the 1992 wheel well any dif from other years?
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Old Mar 5, 2008 | 07:31 PM
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Re: Widest rear tire???

Mine was a 92 RS...The other guy I know has a 88 TA.
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Old Mar 5, 2008 | 07:44 PM
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Re: Widest rear tire???

if i got the 295's what do you think the ideal sidewall size would be?
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Old Mar 5, 2008 | 07:57 PM
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Re: Widest rear tire???

ok so 295 is in millimeters right? this would be 11.6 inches, so GRIZZLEB, are your tires 12 inch or 295's??????????????
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Old Mar 5, 2008 | 08:29 PM
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Re: Widest rear tire???

Originally Posted by brodysZ28
if i got the 295's what do you think the ideal sidewall size would be?
Not any choice....To go bigger than a 255 on a 16" wheel, the only option (street legal) is the 295/50 H-rated one from BFG. The sidewalls will bulge some, not handle as well as a lower profile, (although I never had any complaints) and a 9" rim would be a much better fit.

BFG 295/50R16

Last edited by Stephen; Mar 5, 2008 at 08:38 PM.
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Old Mar 5, 2008 | 08:43 PM
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Re: Widest rear tire???

Here are my 17x11s on the rear with 315/35/17s. Minor inner fender massaging, minor work on the bump stops, no fender lip work, no rubbing.

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Old Mar 5, 2008 | 08:48 PM
  #16  
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Re: Widest rear tire???

i love f bodies from ohio they are so sexy
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Old Mar 5, 2008 | 10:10 PM
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Re: Widest rear tire???

This is my car. I have 12in wide with 9in rims.These are my street tires. I use 15in slicks for the track.

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Old Mar 6, 2008 | 05:24 AM
  #18  
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Re: Widest rear tire???

these will be 15x10 rims tho stephen, are those bfg's made in that size?
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Old Mar 6, 2008 | 09:41 AM
  #19  
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Re: Widest rear tire???

Originally Posted by brodysZ28
these will be 15x10 rims tho stephen, are those bfg's made in that size?
Use http://www.tirerack.com to research possible sizes that will fit. With a 10" rim,you should be able to fit 315s easily. Taller sidewalls allow more "flexibility" as far as tire widths that will fit on a given rim width.

Or go to your local NTB/Discount Tire (my favorite place here) and ask them. They'll know. Tire height will also play a factor, but that is determined by the sidewall % of the rated width.
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Old Mar 6, 2008 | 10:02 AM
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Re: Widest rear tire???

Originally Posted by brodysZ28
what does everyone think the ideal tire size would be for the 15" rim? The wider the better... also 275's wont stick out too much will they?
hello no they don't stick out at all but I have 275/50/16's just in the rears. I have them on 91-92 16" factory 5 stars
They look baddass, and have that tucked in - beefy tire look with no rubbing issues whatsoever
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Old Mar 6, 2008 | 03:18 PM
  #21  
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Re: Widest rear tire???

yea i def want no rubbing, ok i will check out tirerack and see wat i can find... thanks guys.
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Old Mar 6, 2008 | 03:38 PM
  #22  
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Re: Widest rear tire???

ok so on tirerack i found BFGoodrich Comp T/A Drag Radial 315/60-15(for 50 a piece) and BFGoodrich g-Force T/A Drag Radial 2 315/60...295/65...and 275/60, and 50. which of these will fit???
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Old Mar 6, 2008 | 04:04 PM
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Re: Widest rear tire???

This is a 295/50/15 on a 9" rim with 4.5" backspacing
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This is a 275/60/15 on a 8" rim with 4.5" backspacing
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Both have rubed when hiting a bad bump but the 275s didn't rub as much. I also rolled the rear wheelwell lip in and neather would rub when taking a hard turn but if i hit a dip and the whole back of the car squated the 295 still rubed some.

Edit: btw a 295/50 is a 10" tire and the 275/50 is 9"
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Old Mar 6, 2008 | 04:29 PM
  #24  
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Re: Widest rear tire???

hmm, where do they actually rub? on the fender?
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Old Mar 6, 2008 | 04:54 PM
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Re: Widest rear tire???

It mosly hits the lip.
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Old Mar 6, 2008 | 04:57 PM
  #26  
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Re: Widest rear tire???

oh, i'm not sure whether or not these rims are backspaced enough to kind of tuck them in so they wouldnt rub, they are probably about the same as the rims on the 275's.
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Old Mar 6, 2008 | 05:20 PM
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Re: Widest rear tire???

Those are crager ss's on the firebird with 275s. If you roll the finder lip up you wont have a problem. Also the rearend in that car is alittle off center, and the tire that sticks further out did most of the rubbing b4 i rolled the lip. Btw you had to hit a BIG bump or dip for it to rub it wouldn't rub just taking a corner or anything.

Do you know what the back spacing is. Probly 4.5
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Old Mar 6, 2008 | 06:59 PM
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Re: Widest rear tire???

What's the biggest tire that can fit on 15" z28 wheels?
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Old Mar 6, 2008 | 07:46 PM
  #29  
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Re: Widest rear tire???

ya i think it is 4.5, how did you roll the lip? with a hammer? ok so i have had people say 275, 295, and 315's... also, the second number (45, 50....) is the bigger the number, the more the tire will bulge, which makes it more prone to rub????
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Old Mar 8, 2008 | 05:59 PM
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Re: Widest rear tire???

The first number (275) is how wide it is, the second number is (60) is a % of the first number, and it shows how tall it is.

A 275/50 would be perfect for you. It is shorter than the 275/60 i had so you might not have any problems rubing.
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Old Mar 8, 2008 | 07:22 PM
  #31  
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Re: Widest rear tire???

the rims have 295/50 on them right now so maybe i will test fit them and see if they rub just sittin there.
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Old Mar 8, 2008 | 07:46 PM
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Re: Widest rear tire???

What is the point of having a tire that large if you don't need it...
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Old Mar 8, 2008 | 07:49 PM
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Re: Widest rear tire???

Originally Posted by White25thZ28
my rear rims are 18x10.5 wrapped with 295/35/R19 and they fit nicely

Wait...So you put a 19" tire on an 18" wheel?

Not that my tire sizes are close to what you guys are wanting to run. I daily drive on a 295/35-19 on a 10" wide wheel. Would've gone wider but they didn't make the tires I wanted wider. Looks like I still have another 1" of tire I could stuff under there.
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Old Mar 8, 2008 | 08:12 PM
  #34  
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Re: Widest rear tire???

the 295's are pretty wide and have some tread left on them so i would be very happy if they fit fine... is it a noticeable difference between 295 and 275??
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Old Mar 9, 2008 | 11:12 AM
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Re: Widest rear tire???

Ya there is a noticible diffrence. I have had 295s for a long time so when i got the firebird with the 275s the back tires just seemed to narrow, even tho there is only a 1" diffrence.
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Old Aug 22, 2024 | 06:01 PM
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Re: Widest rear tire???

Originally Posted by 1MeanZ
Here are my 17x11s on the rear with 315/35/17s. Minor inner fender massaging, minor work on the bump stops, no fender lip work, no rubbing.

Attachment 447742
please tell us exactly what rims and tires you used on this car in this photo. Please be detailed. What are the brands of rims and tires? What backspacing both front and rear? What width wheels both front and rear? What are the tire sizes front and rear? What is the tire brand and name? Where can we get these parts?
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Old Aug 22, 2024 | 07:29 PM
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Re: Widest rear tire???

*
Attached Thumbnails Widest rear tire???-61912c38-97e8-43a3-8d90  
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Old Aug 22, 2024 | 08:19 PM
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Re: Widest rear tire???

2008
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Old Aug 23, 2024 | 08:26 AM
  #39  
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Re: Widest rear tire???

I sincerely hope no one reads this ancient thread and then goes out and buys air shocks to clear ill-fitting wheels/tires. It was a dumb idea way back when this thread was posted, and it hasn't gotten any smarter since.




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Old Aug 23, 2024 | 01:10 PM
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Re: Widest rear tire???

Originally Posted by ironwill
I sincerely hope no one reads this ancient thread and then goes out and buys air shocks to clear ill-fitting wheels/tires. It was a dumb idea way back when this thread was posted, and it hasn't gotten any smarter since.
Yep, and air-shocks are best suited for full-frame cars, not uni-body cars, and NOT for the purpose of clearing tires that are too wide...
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Old Sep 6, 2024 | 12:05 PM
  #41  
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Re: Widest rear tire???

Originally Posted by 1MeanZ
Here are my 17x11s on the rear with 315/35/17s. Minor inner fender massaging, minor work on the bump stops, no fender lip work, no rubbing.

Attachment 447742
Attachment 447743
Attachment 447744
Attachment 447745
Attachment 447746
I bought Nitto NT555 G2 Summer UHP Radial 315/35R17 for the rear and 255/45ZR17 for the front. What rim/wheel offset, backspacing dimensions do you recommend for these with 17x11 and 17x9.5?


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