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#201
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I want to get a little more width in the rear and fill the wheelwells just a bit. I'm running 215/70R15s on a 6" rim. Let's say for the sake of discussion I stick with that tire size. Will simply going to a 7" rim give me the appearance of more tire?
What would be the proper backspacing? I'm looking at these- http://www.ebay.com/itm/GM-15-x-7-St...BVrU55&vxp=mtr I would consider doing the same on the front but I'm on the verge of scraping in diving turns up there already. This is what it looks like with the 6" rims.
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Greg Reid Palmetto, Georgia |
#202
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For each inch increase/decrease of rim width, your section width will increase/decrease .5". For a 15" rim you could easily go 235/60/15-- F60-15.
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Russell Small 1969 Hurst/Olds 13.26 @103.1 "Pure Stock is the way to Rock" |
#203
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My fronts are 15X7" with 215/70-15's.
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frittering and wasting the hours in an off hand way.... 1969 GTO, 455ci, 230/236 Pontiac Dude's "Butcher Special" Comp hyd roller cam with Crower HIPPO solid roller lifters, Q-jet, Edelbrock P4B-QJ, Doug's headers, ported 6X-8 (97cc) heads, TKO600, 3.73 geared Eaton Tru-Trac 8.5", hydroboost, rear disc brakes......and my greatest mechanical feat....a new heater core. |
#204
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Thanks for the info guys. That helps...I just need a decision pill.
I have 15x8 Rally IIs that I was running before the steelies and occasionally I would get a scrub on the front wheel in hard turns like going into my inclined driveway... I noticed that it never happened again after I went to the steelies and the only difference I know of is the width is 6" vs 7". Maybe the backspacing is different? Maybe the springs are going south. I dunno... I may install them for a day or two just to check before I decide if it's safe to go all around with a bigger steel wheel/tire combo. I definitely want bigger at least in the back though.
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Greg Reid Palmetto, Georgia |
#205
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Here is a pic of the front wheel on my 67 GTO. Its a P215/65R15. As you can see it rubs on the back of my wheel well during sharp turns. Will a 60R15 fix it or do I need to go with something different?
[IMG][/IMG] Thanks! |
#206
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That's the same place mine hits. I'm hesitant to go any wider than what I have now on the front.
DAVID, do you know what the backspacing is on your Cragars?
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Greg Reid Palmetto, Georgia |
#207
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Do you happen to know how much caster you're running?
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"The Mustang's front end is problematic... get yourself a Firebird." - Red Forman |
#208
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AMCMike, I don't really know what "caster" is so I cant really answer your question. I assume the front suspension is stock but I really don't know. I see people posting about running 15" wheels so im a little surprised that mine rub so much when I don't really think the tires are that big?
Thank you |
#209
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gtomike
I used to run 215/65/15's on my '64 with 15x7" factory rims (4.25" BS) and never had a problem with my stock drum brakes. I eventually went up to 235/60/15's and still everything cleared. After switching to disc brakes up front, I occasionally get a very slight rub at the front of the wheelwell when making sharp turns. It would be interesting to learn what your rim specs are - width and backspacing. Going to a 215/60/15 is going to make your front tires pretty short - 25.2" vs 26" for your current 215/65's. My 235/60's are 26.1". |
#210
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Quote:
If someone tried to dial in a lot of positive caster with factory upper control arms, then it would put the tire closer to the fender lip (hence my question). If that were the case, you have two options: Have an alignment shop reduce caster (this will be a trade off in handling as you'll notice in reading the link), or purchase lower control arms with built in additional caster (such arms will pull the wheel more forward and add even more positive caster). I think GlobalWest and DSE make lower control arms with built in added caster. They also use Delrin solid bushings which will further improve handling, and actually improve ride as well.
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"The Mustang's front end is problematic... get yourself a Firebird." - Red Forman |
#211
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17x9 honeycombs with Nitto 555's 255/45 front, 255/50 rear. Stock springs and everything clears real well.http://www.forums.maxperformanceinc....1&d=1461435703
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#212
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Quote:
cool car man dig the style |
#213
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YO 17's
9's in back 8's in front on Nitto rubber. 285's in back i think 235's front.
global west long travel coil overs / tubular a-arms. |
#214
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Thanks, sharp '68 you have there.
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#215
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1963 Pontiac Grand Prix
front and rear same 15x7 tru spoke supreme rims 3 5/8" backspace 205-70-15 firestone fr720 ww tires 2 in lowering springs from eaton spring Detroit MI
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Donate Life 6-7-04 Liver Transplant Recipitant http://www.donatelife.net/ U S A for Organ Donation Thank You |
#216
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Nice. perfect stance on a very nice 63.
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#217
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Love this!
Retro here...
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Some guys they just give up living And start dying little by little, piece by piece, Some guys come home from work and wash up, And go racin' in the street. Bruce Springsteen - Racing In The Street - 1978 |
#218
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tires on after market rims
i posted this on the forum in different threads and got no replies so I'm trying this thread I have a 1969 gto with 15x5 front and 15x8 rear the rims are weld rims front is 3-1/2 back spacing and rear is 4-1/2 back spacing I like to run street tires on the car I need to get the correct front tire with no issues of rubbing the rear is 275-60-15 any help is appreciated
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#219
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#220
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67 GTO with 17" YearOne rally IIs, 4.5" backspacing. Tires are 235/50R17 Eagles. I had to trim the rear fender lip flush with the wheel well trim and raise the car 1" for clearance. This is with the stock 67 rear end.
I also had to work on the fronts a little. There is a bump out in the back of the driver's side fender liner that I had to use a hammer on and I had to loosen the back fender bolts and ease the fender out a little for clearance.
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Remember no one is perfect. Everyone's butt has a crack in it! |
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