HELP--Another Tire/Wheel Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ilg14 · 01-03-2006, 07:07 PM

I have an factory stance 2WD '85 C10 Silverado LWB with original rims and 225/75/15 tires all around. I am putting 15x8 on front and 15x10 on rear.

On the REAR 15x10's, can I put a 295/50 and be okay? Also on the 15x10's, is a 275/60 okay?

"Okay" means fit the wells without problems and/or tire-wheel match is safe.

THANK YOU

boxrodz · 01-04-2006, 02:24 AM

The 295/50s would fit well on 15x10s but you're looking at ~26.7" tall wheel as compared to the factory 225/75s at ~28.3" tall. The 275/60s is taller at ~28" but is a bit narrow for 15x10s. They would work better on 15x9s. Without a drop, a staggered look may not look right to you. The blazer in the pic below has a dropped and staggered stance with 235/60/15s in front and 275/60/15s out back.

ilg14 · 01-04-2006, 02:47 AM

Thanks for the reply.

So, the 295/50 on a 15x10 would fit in the rear well without hitting anything?

If so, I might combine that with 235/60's on 15x8's up front. With that combination, I believe I would move from 28.29" stock tire height to 26.10" in front and 26.61" in rear.

How does that sound? I do like the staggered look, but would it look foolish on a stock stance with my previously-mentioned tire and wheel choices? Anyone got pics?

Might it look better to combine the rear 295/50's with 235/70's up front and provide a more level look (235/70 = 27.95")

Thanks again.

troy hallan · 01-04-2006, 01:55 PM

i have 235/60's on 15x8's on the front and 295/50's on 15x10's on the rear of my 79 swb the two sizes are real close to the same hieght the 235 being slightly shorter no fitment problems

ilg14 · 01-04-2006, 03:06 PM

Quote:

Originally Posted by troy hallan

i have 235/60's on 15x8's on the front and 295/50's on 15x10's on the rear of my 79 swb the two sizes are real close to the same hieght the 235 being slightly shorter no fitment problems

Thanks. That's what I am planning on doing. Will there be any discrepancies between a swb and lwb?

olblue81 · 01-04-2006, 03:24 PM

Back in the day with a 15x10 with unknown backspacing I ran 295/50's with no clearance issues. At the stock height it will look dated though. At less than 27" there is a lot of air between the wheelwell and tire when looking from the side.

troy hallan · 01-04-2006, 05:33 PM

no difference between swb and lwb mine has 4inch back spacing on the 15x10's some might think it looks dated with all that space between the tire and wheelwell i personally think it fits the era of the truck

ilg14 · 01-04-2006, 05:45 PM

Thanks to all. I actually don't mind the look either.

live85 · 01-05-2006, 12:02 PM

I have 15x10 with 275/60-15 all around with a stock stance. I likey.
I'll try to post pic when I get home that you can see better than my avatar.
Sorry I don't have a pic readily available.

ilg14 · 01-05-2006, 01:11 PM

Can anyone else chime in about experiences with 275/60's on a 15x10? Most online places, and others I have talked with, suggest a 275/60 be put on a 9.5" rim and no larger.

olblue81 · 01-05-2006, 05:04 PM

Quote:

Originally Posted by troy hallan

some might think it looks dated with all that space between the tire and wheelwell i personally think it fits the era of the truck

Don't disagree with you one bit. But if you look at the magazines and some of the posts here, it seems as though you have to be scraping paint off your rockers to be cool anymore. In the late 80's it was cool (around here anyhow) to have as wide a tire as possible under the truck. 275/50-15s and 295/50-15s was standard issue at my high school.

Some guys would cut a coil off the front, but that still left the back end up high. Wish I still had some photos of my 81 from back then. Never was much on snapping pics of it as it progressed along and now I regret that.
BTW, has anyone figured out an air pressure to run that a BFG T/A won't wear out in the middle before the sides?

ilg14 · 01-05-2006, 06:46 PM

Quote:

Originally Posted by olblue81

BTW, has anyone figured out an air pressure to run that a BFG T/A won't wear out in the middle before the sides?

Good question. I am wondering the same, as those are the tires I will be putting on my new wheels.

boxrodz · 01-07-2006, 05:26 PM

Quote:

Originally Posted by olblue81

BTW, has anyone figured out an air pressure to run that a BFG T/A won't wear out in the middle before the sides?

Quote:

Originally Posted by ilg14

Good question. I am wondering the same, as those are the tires I will be putting on my new wheels.

I wouldn't go over 35 psi max. Maybe, somewhere between 33 psi.
BTW, if the middle is wearing under proper inflation, it may be too wide for the size of rim they're running on.

ilg14 · 01-07-2006, 06:16 PM

Thanks for the info.!

olblue81 · 01-07-2006, 11:37 PM

boxrodz said -I wouldn't go over 35 psi max. Maybe, somewhere between 33 psi.
BTW, if the middle is wearing under proper inflation, it may be too wide for the size of rim they're running on.-
Currently running 275/60-r15 on factory rally wheel (rear tires). Started out with 28 psi with new tires since that was what seemed to wear the tire chalk I put across the tread evenly. After 3000 or so miles, it was clear that was too high. I dropped it to around 24-25, but gave up by 6000 miles. Tires were pretty much toast. Put new ones on and I've got them at 22. Haven't got enough miles on it to see how they are wearing and won't know till spring.

ilg14 · 01-07-2006, 11:43 PM

Is the the inflation issue that much of a problem with the BFG T/A's, or do other guys have this issue with other/most/all tires?

f.monroe · 01-08-2006, 01:15 AM

I had way too many sets of wheels on my 77 I had in high school . I wish I had pics of it still . I ran a 15 x 8 with 3.5 BS on the front , a 15x10 with 3.5 and then moved to 4.5 inches of backspace . Mine were Weld Draglites most of the time . Also ran Centerline autodrags, Champ 500's ,and Convo Pros at different times . My buddy had a tire/wheel shop . I ran a 235 /60 front and 295/50 rear . I also moved to a 275/50 on the front a few times . They fit with no clearance issues . My dads 81 short bed had 8' and 10's with 235/70 front and 275/60 rear . That is a nice combo for a factory height truck . His foot was lighter and his tires always seemed to last longer . All 275/60's that I have had experience with wore in the middle regardless of the brand . I usually ran BF's but my friends ran others . We all wore them in the middle . Deflating them should make them wear on the edges but they always seem to wear in the middle . Frank

live85 · 01-08-2006, 02:30 AM

This is my wheel with a 275/60-15, I'll try to get better photos tomorrow.
Yes, these Grand Am's do wear in the middle, too.

live85 · 01-08-2006, 02:34 AM

Another view. Stock height, 15x10 all around, 275/60-15's all around.
Please excuse the tailgate.

live85 · 01-08-2006, 05:34 PM

Ok, ilg14, I got some pictures that might answer your original question about fitment for a 15x10 with 275/60-15's. I don't know what the backspacing is on these wheels. I'm sorry it took so long.

ilg14 · 01-08-2006, 06:17 PM

Very good. Thanks for the pics!!

01-03-2006, 07:07 PM	#1
ilg14 Registered User Join Date: Jun 2005 Location: Bowling Green, Ohio Posts: 54	HELP--Another Tire/Wheel Question I have an factory stance 2WD '85 C10 Silverado LWB with original rims and 225/75/15 tires all around. I am putting 15x8 on front and 15x10 on rear. On the REAR 15x10's, can I put a 295/50 and be okay? Also on the 15x10's, is a 275/60 okay? "Okay" means fit the wells without problems and/or tire-wheel match is safe. THANK YOU Last edited by ilg14; 01-04-2006 at 01:30 AM.

01-04-2006, 02:24 AM	#2
boxrodz Until Seventy Times Seven Join Date: Feb 2005 Location: Rocky Mountain Front Range Posts: 1,301	Re: HELP--Another Tire/Wheel Question The 295/50s would fit well on 15x10s but you're looking at ~26.7" tall wheel as compared to the factory 225/75s at ~28.3" tall. The 275/60s is taller at ~28" but is a bit narrow for 15x10s. They would work better on 15x9s. Without a drop, a staggered look may not look right to you. The blazer in the pic below has a dropped and staggered stance with 235/60/15s in front and 275/60/15s out back. Attached Images __________________ boxRODz 1983 C10 SWB Fleetside When two halves is gone, there's nuthin left. Two nothings is nuthin. That's mathematics son. You can argue with me but you can't argue with figures. Two half nothings is a whole nuthin... Last edited by boxrodz; 01-04-2006 at 02:39 AM.

01-04-2006, 02:47 AM	#3
ilg14 Registered User Join Date: Jun 2005 Location: Bowling Green, Ohio Posts: 54	Re: HELP--Another Tire/Wheel Question Thanks for the reply. So, the 295/50 on a 15x10 would fit in the rear well without hitting anything? If so, I might combine that with 235/60's on 15x8's up front. With that combination, I believe I would move from 28.29" stock tire height to 26.10" in front and 26.61" in rear. How does that sound? I do like the staggered look, but would it look foolish on a stock stance with my previously-mentioned tire and wheel choices? Anyone got pics? Might it look better to combine the rear 295/50's with 235/70's up front and provide a more level look (235/70 = 27.95") Thanks again. Last edited by ilg14; 01-04-2006 at 02:50 AM.

01-04-2006, 01:55 PM	#4
troy hallan Registered User Join Date: Mar 2005 Location: fergus falls minnesota Posts: 36	Re: HELP--Another Tire/Wheel Question i have 235/60's on 15x8's on the front and 295/50's on 15x10's on the rear of my 79 swb the two sizes are real close to the same hieght the 235 being slightly shorter no fitment problems __________________ Troy Hallan

01-04-2006, 03:24 PM	#6
olblue81 Registered User Join Date: Jul 2005 Location: Saskatchewan Posts: 189	Re: HELP--Another Tire/Wheel Question Back in the day with a 15x10 with unknown backspacing I ran 295/50's with no clearance issues. At the stock height it will look dated though. At less than 27" there is a lot of air between the wheelwell and tire when looking from the side. __________________ Stu- 1981 GMC Sierra Classic LWB 355- original 2 bolt block, 10.2:1, vortec heads, Comp XE268 cam, built by self in 1992 700R4-2000 stall with lockup, shift kit, Corvette servo 3.07 open diff- I need a 3.73 posi! 2nd owner since 1986 - 388,000 km and counting. 100k by the first owner and the rest by me.

01-04-2006, 05:33 PM	#7
troy hallan Registered User Join Date: Mar 2005 Location: fergus falls minnesota Posts: 36	Re: HELP--Another Tire/Wheel Question no difference between swb and lwb mine has 4inch back spacing on the 15x10's some might think it looks dated with all that space between the tire and wheelwell i personally think it fits the era of the truck __________________ Troy Hallan

01-04-2006, 05:45 PM	#8
ilg14 Registered User Join Date: Jun 2005 Location: Bowling Green, Ohio Posts: 54	Re: HELP--Another Tire/Wheel Question Thanks to all. I actually don't mind the look either. Last edited by ilg14; 01-04-2006 at 06:10 PM.

01-05-2006, 12:02 PM	#9
live85 Registered User Join Date: Dec 1999 Location: Minor, AL Posts: 91	Re: HELP--Another Tire/Wheel Question I have 15x10 with 275/60-15 all around with a stock stance. I likey. I'll try to post pic when I get home that you can see better than my avatar. Sorry I don't have a pic readily available. __________________ Mike 1985 White Custom Deluxe LWB Early 70's 350 / stock turbo 350 2.73 open differential 10 bolt (yeehaw) Priceless sentimental value

01-05-2006, 01:11 PM	#10
ilg14 Registered User Join Date: Jun 2005 Location: Bowling Green, Ohio Posts: 54	Re: HELP--Another Tire/Wheel Question Can anyone else chime in about experiences with 275/60's on a 15x10? Most online places, and others I have talked with, suggest a 275/60 be put on a 9.5" rim and no larger.

01-07-2006, 06:16 PM	#14
ilg14 Registered User Join Date: Jun 2005 Location: Bowling Green, Ohio Posts: 54	Re: HELP--Another Tire/Wheel Question Thanks for the info.!

01-07-2006, 11:37 PM	#15
olblue81 Registered User Join Date: Jul 2005 Location: Saskatchewan Posts: 189	Re: HELP--Another Tire/Wheel Question boxrodz said -I wouldn't go over 35 psi max. Maybe, somewhere between 33 psi. BTW, if the middle is wearing under proper inflation, it may be too wide for the size of rim they're running on.- Currently running 275/60-r15 on factory rally wheel (rear tires). Started out with 28 psi with new tires since that was what seemed to wear the tire chalk I put across the tread evenly. After 3000 or so miles, it was clear that was too high. I dropped it to around 24-25, but gave up by 6000 miles. Tires were pretty much toast. Put new ones on and I've got them at 22. Haven't got enough miles on it to see how they are wearing and won't know till spring. __________________ Stu- 1981 GMC Sierra Classic LWB 355- original 2 bolt block, 10.2:1, vortec heads, Comp XE268 cam, built by self in 1992 700R4-2000 stall with lockup, shift kit, Corvette servo 3.07 open diff- I need a 3.73 posi! 2nd owner since 1986 - 388,000 km and counting. 100k by the first owner and the rest by me. Last edited by olblue81; 01-07-2006 at 11:38 PM.

01-07-2006, 11:43 PM	#16
ilg14 Registered User Join Date: Jun 2005 Location: Bowling Green, Ohio Posts: 54	Re: HELP--Another Tire/Wheel Question Is the the inflation issue that much of a problem with the BFG T/A's, or do other guys have this issue with other/most/all tires?

01-08-2006, 01:15 AM	#17
f.monroe Senior Member Join Date: May 2004 Location: Caldwell,Tx. Posts: 3,648	Re: HELP--Another Tire/Wheel Question I had way too many sets of wheels on my 77 I had in high school . I wish I had pics of it still . I ran a 15 x 8 with 3.5 BS on the front , a 15x10 with 3.5 and then moved to 4.5 inches of backspace . Mine were Weld Draglites most of the time . Also ran Centerline autodrags, Champ 500's ,and Convo Pros at different times . My buddy had a tire/wheel shop . I ran a 235 /60 front and 295/50 rear . I also moved to a 275/50 on the front a few times . They fit with no clearance issues . My dads 81 short bed had 8' and 10's with 235/70 front and 275/60 rear . That is a nice combo for a factory height truck . His foot was lighter and his tires always seemed to last longer . All 275/60's that I have had experience with wore in the middle regardless of the brand . I usually ran BF's but my friends ran others . We all wore them in the middle . Deflating them should make them wear on the edges but they always seem to wear in the middle . Frank __________________ Born and proudly residing in a Red State !

01-08-2006, 02:30 AM	#18
live85 Registered User Join Date: Dec 1999 Location: Minor, AL Posts: 91	Re: HELP--Another Tire/Wheel Question This is my wheel with a 275/60-15, I'll try to get better photos tomorrow. Yes, these Grand Am's do wear in the middle, too. Attached Images __________________ Mike 1985 White Custom Deluxe LWB Early 70's 350 / stock turbo 350 2.73 open differential 10 bolt (yeehaw) Priceless sentimental value

01-08-2006, 02:34 AM	#19
live85 Registered User Join Date: Dec 1999 Location: Minor, AL Posts: 91	Re: HELP--Another Tire/Wheel Question Another view. Stock height, 15x10 all around, 275/60-15's all around. Please excuse the tailgate. Attached Images __________________ Mike 1985 White Custom Deluxe LWB Early 70's 350 / stock turbo 350 2.73 open differential 10 bolt (yeehaw) Priceless sentimental value Last edited by live85; 01-08-2006 at 02:36 AM.



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01-08-2006, 05:34 PM	#20
live85 Registered User Join Date: Dec 1999 Location: Minor, AL Posts: 91	Re: HELP--Another Tire/Wheel Question Ok, ilg14, I got some pictures that might answer your original question about fitment for a 15x10 with 275/60-15's. I don't know what the backspacing is on these wheels. I'm sorry it took so long. Attached Images __________________ Mike 1985 White Custom Deluxe LWB Early 70's 350 / stock turbo 350 2.73 open differential 10 bolt (yeehaw) Priceless sentimental value

01-08-2006, 06:17 PM	#21
ilg14 Registered User Join Date: Jun 2005 Location: Bowling Green, Ohio Posts: 54	Re: HELP--Another Tire/Wheel Question Very good. Thanks for the pics!!

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