Original Tire Size for 1971 C-10?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

austinstocker · 07-07-2009, 08:58 PM

Does anyone out there have an idea of the factory tire size on a 67-72 1/2 ton 2WD short wide box? I am looking at the lowering parts on LMC Trucks magazine showing how low the truck will end up from "factory" height. The problem being... My truck has shorter tires than original, causing it to already be lower.... but how much? Anything helps. Thanks.

72BlckButy · 07-07-2009, 09:04 PM

If a factory spare would be the same, my factory spare was 8.25 X 15.

By the way....

to the board from Mid-MO!!!

And we need a few pics of your truck to ensure those factory looking tires will truly fit the overall look... oh heck, who am I kidding? We just love pics!!!

austinstocker · 07-07-2009, 09:12 PM

Thanks, I'll look into that. I'll have to take some pictures of the truck. As it sits now... 1967 C-10, 454, muncie 4 speed, posi 3.73, lowered, but not correctly. main purpose behind my post. haha.

**WorkinLonghorn** · 07-07-2009, 11:06 PM

Yeah,8.25x15/4PR (equivalent 205R15) was standard on C10s but there were a few options.

Truckism · 07-08-2009, 09:24 PM

According to the SPID, my 70 long bed C-10 was equipped with a G78-15. It crosses to a 225/75-15. Looks a little small on a 5-1/2" rim so I may have gotten away with a 235.

72BlckButy · 07-08-2009, 09:27 PM

Truckism... any more shots of your truck?

Truckism · 07-09-2009, 10:52 PM

Quote:

Originally Posted by 72BlckButy

Truckism... any more shots of your truck?

Follow linky. http://67-72chevytrucks.com/vboard/s...d.php?t=347614

72BlckButy · 07-10-2009, 07:52 AM

Okay... now I remember your truck. Beautiful work!

austinstocker · 07-14-2009, 08:06 PM

thanks for all your information. I think I am going to end up with 2 1/2" drop spindles in the front with stock springs and 4" drop springs in the back. I don't want to go too low. Plus I'm sure I will be much more happy with the ride.

07-07-2009, 08:58 PM	#1
austinstocker Registered User Join Date: Jul 2009 Location: Enumclaw, WA Posts: 49	Original Tire Size for 1971 C-10?? Does anyone out there have an idea of the factory tire size on a 67-72 1/2 ton 2WD short wide box? I am looking at the lowering parts on LMC Trucks magazine showing how low the truck will end up from "factory" height. The problem being... My truck has shorter tires than original, causing it to already be lower.... but how much? Anything helps. Thanks.

07-07-2009, 09:04 PM	#2
72BlckButy Tot Roddin' Join Date: Apr 2005 Location: Mid-MO Posts: 24,461	Re: Original Tire Size for 1971 C-10?? If a factory spare would be the same, my factory spare was 8.25 X 15. By the way.... to the board from Mid-MO!!! And we need a few pics of your truck to ensure those factory looking tires will truly fit the overall look... oh heck, who am I kidding? We just *love* pics!!! __________________ -Nate 1969 CST SWB - Project Blank Slate (4.5/6" ECE Static Drop, 6-lug disc brake upgrade (manual), Billet Specialties Vintec 20x8.5 255/40 (F) 20x10 295/40 (R), 250 I-6) 1960 AMF Skylark - Tot Roddin' (Lowered with custom frame; soon to include custom push bar and interior) 2008 Silverado CrewCab 1LT (5.3L, 3:73, 4x4, LT1, Z-71, Towing Package) Last edited by 72BlckButy; 07-07-2009 at 09:06 PM.

07-07-2009, 09:12 PM	#3
austinstocker Registered User Join Date: Jul 2009 Location: Enumclaw, WA Posts: 49	Re: Original Tire Size for 1971 C-10?? Thanks, I'll look into that. I'll have to take some pictures of the truck. As it sits now... 1967 C-10, 454, muncie 4 speed, posi 3.73, lowered, but not correctly. main purpose behind my post. haha.

07-07-2009, 11:06 PM	#4
WorkinLonghorn Senior Member Join Date: Dec 2006 Location: Studio City, Calif. Posts: 2,886	Re: Original Tire Size for 1971 C-10?? Yeah,8.25x15/4PR (equivalent 205R15) was standard on C10s but there were a few options. __________________ '69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, stereo speakers, 2nd owner, Work-Truck supreme.

07-08-2009, 09:24 PM	#5
Truckism Registered User Join Date: Jan 2007 Location: Gainesville, Va. Posts: 75	Re: Original Tire Size for 1971 C-10?? According to the SPID, my 70 long bed C-10 was equipped with a G78-15. It crosses to a 225/75-15. Looks a little small on a 5-1/2" rim so I may have gotten away with a 235. Attached Images __________________ '03 2500HD Crew Duramax Allison '70 Custom-10 LWB Fleetside '69 C-10 SWB Fleetside 4X4 4-Speed '72 VW Drag Car BUILD THREAD: http://67-72chevytrucks.com/vboard/s...d.php?t=359544 MY RIDE: http://67-72chevytrucks.com/vboard/s...d.php?t=347614

07-08-2009, 09:27 PM	#6
72BlckButy Tot Roddin' Join Date: Apr 2005 Location: Mid-MO Posts: 24,461	Re: Original Tire Size for 1971 C-10?? Truckism... any more shots of your truck? __________________ -Nate 1969 CST SWB - Project Blank Slate (4.5/6" ECE Static Drop, 6-lug disc brake upgrade (manual), Billet Specialties Vintec 20x8.5 255/40 (F) 20x10 295/40 (R), 250 I-6) 1960 AMF Skylark - Tot Roddin' (Lowered with custom frame; soon to include custom push bar and interior) 2008 Silverado CrewCab 1LT (5.3L, 3:73, 4x4, LT1, Z-71, Towing Package)

07-10-2009, 07:52 AM	#8
72BlckButy Tot Roddin' Join Date: Apr 2005 Location: Mid-MO Posts: 24,461	Re: Original Tire Size for 1971 C-10?? Okay... now I remember your truck. Beautiful work! __________________ -Nate 1969 CST SWB - Project Blank Slate (4.5/6" ECE Static Drop, 6-lug disc brake upgrade (manual), Billet Specialties Vintec 20x8.5 255/40 (F) 20x10 295/40 (R), 250 I-6) 1960 AMF Skylark - Tot Roddin' (Lowered with custom frame; soon to include custom push bar and interior) 2008 Silverado CrewCab 1LT (5.3L, 3:73, 4x4, LT1, Z-71, Towing Package)

07-14-2009, 08:06 PM	#9
austinstocker Registered User Join Date: Jul 2009 Location: Enumclaw, WA Posts: 49	Re: Original Tire Size for 1971 C-10?? thanks for all your information. I think I am going to end up with 2 1/2" drop spindles in the front with stock springs and 4" drop springs in the back. I don't want to go too low. Plus I'm sure I will be much more happy with the ride.

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