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03-22-2006, 04:43 PM
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#1 |
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Registered User
Join Date: Feb 2006
Location: Ontario
Posts: 145
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tires
whats the widest tire you can put on a 15x8 rally rim? I am looking for better dry and wet weather traction for a 79 2wd lwb. Any suggestions on tire choice? I currently have an old set of wranglers (20 years old) on the rear. Also what is the stock tire height on these trucks?
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79 GMC Sierra 5.9 cummins, nv4500 |
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03-22-2006, 06:49 PM
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#2 |
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Stepsides RULE
Join Date: Jul 2004
Location: Pineville, LA
Posts: 1,921
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Re: tires
stock tires on the 15 inch wheels are 235/75/15
There was a thread about this about 2 weeks ago.... .... I think the general thought was 275 ish. I have 255/70/15 on my 15x8 rallys, PM for a pic if you'd like a couple.
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1981 Chevy C10 Custom Deluxe Stepside 350 V8, headers, side exhausts, 3-speed auto SOLD 1980 Chevy C10 Custum Deluxe Stepside 305 V8, Edelbrock Performer Intake, Edelbrock 1406 600CFM 4-barrel, TH350C. Bent rod. SOLD 1984 GMC Sierra Classic Longbed 6.2L Diesel SOLD 2009 Kawasaki KLX-250S too many mods for this signature 1999 Honda Accord EX 4-cylinder, 17" Motegi Wheels 215/45/17 Sumitomo tires, Tein S-Tech lowering springs, KYB GR2 shocks, Acura TL 20mm rear swaybar, debadged, blackhoused headlights, Short-Ram Intake Cardomain of the Accord |
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03-22-2006, 08:02 PM
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#3 |
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Registered User
Join Date: Feb 2006
Location: Ontario
Posts: 145
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Re: tires
ok thanks. pm sent. Looks like 255/70/15 is the widest i can go, keeping stock tire height. 275/60/15 drop the tire height by an inch and a 265/70/15 will raise it by an inch
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79 GMC Sierra 5.9 cummins, nv4500 Last edited by 79GMC_OLDS; 03-22-2006 at 08:17 PM. |
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03-22-2006, 08:15 PM
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#4 |
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Right turn Clyde
Join Date: Nov 2002
Location: Cincinnati, Ohio
Posts: 2,911
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Re: tires
Wider tires are better for dry but not wet traction. A good size for 15x8 is 255-70-15
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1974 C25 LWB: 454 4bbl Carb / TH400 / 3.73 1992 Camaro RS 305 TBI |
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03-22-2006, 10:18 PM
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#5 |
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Registered User
Join Date: Mar 2005
Location: 10-Uh-See
Posts: 5,609
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Re: tires
275/60/15 all the way around
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Last edited by 68Stepbed; 10-04-2007 at 10:32 PM. |
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03-22-2006, 11:34 PM
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#6 |
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Registered User
Join Date: May 2002
Location: NJ
Posts: 910
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Re: tires
You can always go on BFgoodrich website and check the specs for the type of tire you want and it will list the recommended rim sizes for all the tire sizes.
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83 C10 Stepside (SOLD, it was a blast!) 383 MASS-FLO EFI/TKO II 600/3.90 Posi 10 bolt S475 and C4 DM running, fine tuning turbo=  Douchebag Racing: Runs Fine all the Time |
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03-23-2006, 01:18 PM
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#7 |
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Crazy
Join Date: Apr 2005
Location: Emmaus, Pa
Posts: 203
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Re: tires
I have 33 12.50's BFG mud terrains on my 15x8 rallys. I use them for the winter only, but for quite a few years before I got al. wheels I ran them continuously, not a single problem. Tires wore perfectly, didnt burn the centers or outsides.
Good luck.
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77 SB Stepside in a bunch of pieces scattered around the garage. |
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03-23-2006, 01:37 PM
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#8 |
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Registered User
Join Date: Jan 2004
Location: Duluth, Mn
Posts: 162
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Re: tires
I have run 275/60/15 Yokohama Avid S/T's on 15x8 rallys they look good wear good and are way cheaper than most others the same size. Dry traction was excellent and I had no problems with them in the rain as I did with my previous tires. I used to get stuck on concrete steets in the rain on hills untill they dried off a spot then would go.
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85 GMC 1/2 ton LWB 4150lbs. 383 SBC with Twin MPT70 Turbos 850 CSU carb TH375 3.70 gears Ultimate 10" Converter 10.11@136.6 with 1.64 60ft. on 10.5-31-15W 
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03-23-2006, 01:44 PM
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#9 |
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Senior Member
Join Date: Mar 2004
Location: Fergus, Ontario
Posts: 481
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Re: tires
I have Dunlop GT Qualifiers on mine. Great traction wet or dry, low noise, soft ride. 255x60x15 fr and 275 rear, on 8" rally
Doug |
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03-23-2006, 02:12 PM
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#10 |
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Senior Member
 
Join Date: Oct 2005
Location: south carolina
Posts: 658
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Re: tires
I have 285/70/15 all the way around on mine,It raised it up a little but not to much.
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1972 chevy cheyenne 10,nothing special at the moment,Its a work in progress, Working on the engine, paint and body,engine, paint and body,now its the suspenion, ahh hell I'm about tired of working on it. Maybe it will be a rat rod. 
Last edited by roughedup72; 06-05-2006 at 04:04 PM. |
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