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255/70/15 #2958663
08/29/21 12:32 PM
08/29/21 12:32 PM
Joined: Jun 2011
Posts: 190
London, England
J
JFChallenger440 Offline OP
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JFChallenger440  Offline OP
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J

Joined: Jun 2011
Posts: 190
London, England
Is anyone running this size on the rear of their car ? Be interested to see pics ? Also what backspacing would be needed ? I have a 70 Charger with 4” backspacing on the rear, thanks

Re: 255/70/15 [Re: JFChallenger440] #2958668
08/29/21 12:55 PM
08/29/21 12:55 PM
Joined: Jan 2003
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So Near, Yet So Far
topside Offline
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I've run that size on a '64 Savoy wagon, and the previous owner of my '69 Road Runner did as well.
Both used 8" wheels with the stock 4.25-4.50 BS, no rubbing.
That tire is about 30" tall but not all that wide - I've run 295/50s on a RR before with the same size & BS wheel with no issues.

Re: 255/70/15 [Re: topside] #2958686
08/29/21 01:26 PM
08/29/21 01:26 PM
Joined: Jun 2011
Posts: 190
London, England
J
JFChallenger440 Offline OP
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JFChallenger440  Offline OP
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London, England
Thanks

My wheels are 15 x 7 by the way but the backspacing only 4”

So you think they should clear on my Charger ?

Thanks

Re: 255/70/15 [Re: JFChallenger440] #2958701
08/29/21 02:28 PM
08/29/21 02:28 PM
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So Near, Yet So Far
topside Offline
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Sidewall bulge will be different than what I know about, but likely not much.
Look up the section width, see what rim width it was measured at, and compare to what you have now.
A straightedge and measuring tape might be handy; straightedge against brake drum, measure to springs & inner wheelhouse.

Re: 255/70/15 [Re: JFChallenger440] #2958735
08/29/21 04:15 PM
08/29/21 04:15 PM
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MI
6PAX Offline
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These are 255-70-15 on 7" Cragars on the GTX I used to own.

IMG_0115.JPGIMG_0114.JPG
Re: 255/70/15 [Re: JFChallenger440] #2958747
08/29/21 05:30 PM
08/29/21 05:30 PM
Joined: Mar 2009
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Sydney,Australia
tex013 Offline
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Sydney,Australia
I run those on my 68 Satellite . I use a 8"rim with 4 1/2"BS . 7"rim will be fine , yes a little more bulge . Good size tyre without looking oversize . Great with my 4.10s

Tex

20210830_073627.jpg
Last edited by tex013; 08/29/21 05:37 PM.

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Re: 255/70/15 [Re: JFChallenger440] #2959001
08/30/21 12:33 PM
08/30/21 12:33 PM
Joined: Jun 2018
Posts: 340
Mequon, WI
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gzig5 Offline
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Mequon, WI
That's what I have on the back of my Cuda at the moment. 15x8 wheels but the offset is not optimal. Tight to fender lip, but plenty of room on the inside. 255/60 on the front with 7" wide wheels.

IMG_1669_a.JPG
Re: 255/70/15 [Re: JFChallenger440] #2959109
08/30/21 06:07 PM
08/30/21 06:07 PM
Joined: Feb 2006
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TN
1DGEMAN Offline
mopar
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TN
255 70r 15 tires on 15x7 Rallye wheels. No clearance problems at all. Car is an original owner 440 6bbl 4sp numbers matching.

130.jpg131.jpg

Real Men shift for themselves
Re: 255/70/15 [Re: 1DGEMAN] #2959249
08/30/21 10:38 PM
08/30/21 10:38 PM
Joined: May 2019
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nowhere
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Sniper Offline
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Just put a set of P255/50R17's on my 51.

I got room for a lot more. Not that it helps. Running 08 Chrysler steelies on it.

Fat rear.jpgFat side.jpg
Re: 255/70/15 [Re: JFChallenger440] #2959271
08/30/21 11:44 PM
08/30/21 11:44 PM
Joined: Jan 2003
Posts: 18,901
San Jose,CA
migsBIG Offline
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San Jose,CA
I was just thinking of having 255's put on some 15x7 rims for my 1972 Charger. Thanks for posting pics everyone, all your cars look sweet with that size of rubber.

Re: 255/70/15 [Re: migsBIG] #2959289
08/31/21 04:33 AM
08/31/21 04:33 AM
Joined: Jun 2011
Posts: 190
London, England
J
JFChallenger440 Offline OP
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JFChallenger440  Offline OP
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J

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London, England
I do like the 70 profile on the rear , surprised it’s not more popular really with most people going for 50 or 60 profile

Re: 255/70/15 [Re: JFChallenger440] #2959591
08/31/21 04:47 PM
08/31/21 04:47 PM
Joined: Jul 2009
Posts: 504
massachusetts U.S.A.
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1969ronnie Offline
mopar
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massachusetts U.S.A.
Interesting post . I need tires this week to get ready for Lebanon Valley Mopar shows Sept 5th and Sept 12th . 69 Coronet with 15 X 7 old school American Racing Torque Thrusts with cooper cobra 275-60-15 on rear . drive think I'm going to try the coopers in the 255-70-15 especially since I have 7" rims . . Nice pictures on all the members cars . wave Have a great , safe Labor Day . Ronnie

Re: 255/70/15 [Re: 1969ronnie] #2960530
09/03/21 07:34 AM
09/03/21 07:34 AM
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massachusetts U.S.A.
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1969ronnie Offline
mopar
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massachusetts U.S.A.
Hi Moparts , update , I did get my new rear tires in from cooper in the 255-70-15 size , and they are perfect compared to the 275-60-15s i'm replacing . drive The next question is cooper changed the Font of the white letters VS the old tires . and the new tire letters look bigger and slightly slanted . shruggy Here we Go , New White letters out , or Black Side Walls out using American Racing Torque Thrusts Rims mounted on a dark green 1969 Coronet with black vinyl top ?

Re: 255/70/15 [Re: 1969ronnie] #2960540
09/03/21 08:47 AM
09/03/21 08:47 AM
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MI
6PAX Offline
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Originally Posted by 1969ronnie
Hi Moparts , update , I did get my new rear tires in from cooper in the 255-70-15 size , and they are perfect compared to the 275-60-15s i'm replacing . drive The next question is cooper changed the Font of the white letters VS the old tires . and the new tire letters look bigger and slightly slanted . shruggy Here we Go , New White letters out , or Black Side Walls out using American Racing Torque Thrusts Rims mounted on a dark green 1969 Coronet with black vinyl top ?


Black walls out would be my choice as I'm not a fan of white letter tires on aftermarket wheels. However, I do prefer white letter tires on factory rally wheels.

Re: 255/70/15 [Re: 6PAX] #2960604
09/03/21 11:45 AM
09/03/21 11:45 AM
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north of coder
moparx Offline
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black wall out. up
beer

Re: 255/70/15 [Re: moparx] #2960610
09/03/21 12:01 PM
09/03/21 12:01 PM
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Posts: 3,606
South San Francisco, Ca
70sixpkrt Offline
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I'm running 295/50/15 on a 15x10 with 5" backspace with no problems. I just went with the dilemma of whites in or out. I ended up with out.

IMG_6356 copy.jpg

[img]http://www.imgur.com/hxlGUJt.gif[/img]
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Re: 255/70/15 [Re: 6PAX] #2960654
09/03/21 01:58 PM
09/03/21 01:58 PM
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Phoenix, AZ
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Belvedere1 Offline
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Phoenix, AZ
Do you happen to know what the backspace dimensions were on those 15 x 7s?

Re: 255/70/15 [Re: Belvedere1] #2960686
09/03/21 03:12 PM
09/03/21 03:12 PM
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MI
6PAX Offline
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Originally Posted by Belvedere1
Do you happen to know what the backspace dimensions were on those 15 x 7s?


4 1/8"

Re: 255/70/15 [Re: 6PAX] #2960775
09/03/21 08:19 PM
09/03/21 08:19 PM
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Posts: 1,252
Phoenix, AZ
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Belvedere1 Offline
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Thanks. I'm considering that size tire with a Torque Thrust 15 x 7 on my 67 Belvedere but the backspace is limited to 3 3/4 in that wheel width which may prove problematic.

Re: 255/70/15 [Re: Belvedere1] #2961068
09/04/21 09:26 PM
09/04/21 09:26 PM
Joined: Jul 2009
Posts: 504
massachusetts U.S.A.
1
1969ronnie Offline
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massachusetts U.S.A.
Hi Belverdere , I just measured mine and second the measurment backspacing of 3 5/8" to the rim flange and 3 3/4" to the outer rim Lip on my 15 X 7s rear Torque Thrusts . drive Happy Labor Day weekend , Ronnie







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