35x12.5 tire - The 1947 - Present Chevrolet & GMC Truck Message Board Network

danadena1960 · 12-17-2003, 02:27 AM

I am thinking of ditching my 16.5x8.75 for a set of 15x12 rims. The question I have is will a 35x12.5 work and look ok on a 12" rim? Eventually I plan on going to a 37x13.5 when the price gets more reasonable.

**JIMs70GMC** · 12-17-2003, 06:58 AM

Most manufacturers recommend 10" wide rims for a 12.5 tire. I've seen 12.5 tires on 12" wide rims and for street driving should be fine but you get the truck a little off camber and you'll probably loose the bead, wouldn't take much. Probably couldn't use the full load rating of the tire either. Even the 13.5 tire would be the same as the 12.5. Tires I've seen that recommend 12" wide rims are for example the 33/15.5-15 super swampers and in that case its 10-12" wide rim. Be careful.

Beast388 · 12-17-2003, 03:07 PM

I agree with Jim. A 15X12 rim is too wide for a 12.5" tire. I would go with a 15X10 or 15X8. Personally, I went with a 15X10 for my 35X12.5's.

Destructo · 12-17-2003, 04:42 PM

Quote:

Originally posted by danadena1960
I am thinking of ditching my 16.5x8.75 for a set of 15x12 rims. The question I have is will a 35x12.5 work and look ok on a 12" rim? Eventually I plan on going to a 37x13.5 when the price gets more reasonable.

I suggest 8" rims for 12.5" wide tires, that way you won't blow beads as easily. If you run a 12" rim on 12.5" tires your going to blow beads easily, trust me I know from experience running 10" rims with 10.5" tires. Blew a bead twice in one day on easy ****.

714x4lover · 12-17-2003, 05:04 PM

IF YOU HAVE 8 LUG ROTORS AND CAIPERS IN FRONT THE 15" WHEEL WONT FIT OVER THE CALIPERS

**MJN** · 12-17-2003, 07:34 PM

What are you doing with your old 16.5's? and where are you located?

CHEVYJEFF · 12-17-2003, 07:35 PM

Quote:

Originally posted by 714x4lover
IF YOU HAVE 8 LUG ROTORS AND CAIPERS IN FRONT THE 15" WHEEL WONT FIT OVER THE CALIPERS

Thought you would just have to grind a little of the calipers. I am trying figure out which rims to go with when I do my 8 lug 14 bolt FF rear and 8 lug 10 bolt swap on my k5. Thought about bart 15X10 supertruckers but if 15 wont fit I gues it 16" for me

danadena1960 · 12-17-2003, 07:45 PM

My old 16.5's will be up for grabs. I live south of Atlanta GA. Thanks for the info. on the 15's not fitting, back in the day I had a old drum type 2 wheeler, I didn't think about the calipers. Thanks again.

714x4lover · 12-17-2003, 08:42 PM

hey no prob maybe you can just send the wheels to me and we will be square how does that sound? lonn

chevy68388 · 12-18-2003, 12:28 AM

u can make 15inch rims fit the 8 lug set up just grind the backs off the calipers. just dont take to much

Beast388 · 12-19-2003, 06:21 PM

Quote:

Originally posted by 714x4lover
IF YOU HAVE 8 LUG ROTORS AND CAIPERS IN FRONT THE 15" WHEEL WONT FIT OVER THE CALIPERS

Take a look at my picture above. Those are 15X10's (with 4.25" BS) on an 8-lug axle. It did take a bit of grinding to the caliper and modifying the caliper support, but they fit.

danadena1960 · 12-19-2003, 07:30 PM

Thanks all for the info!
I am looking at a set of American 15x10 81series wheels with a 4" back spacing Pete Paulsen has them for $77 each. Summit also has Bart's with 3 1/2 back spacing for $99 each.
Thanks again ya'll,
Dana

**Canadian694x4** · 12-19-2003, 09:01 PM

Beast388 what kind of axle stands are those? What Weight/size they are too...

Beast388 · 12-19-2003, 11:20 PM

Quote:

Originally posted by Canadian694x4
Beast388 what kind of axle stands are those? What Weight/size they are too...

Uh...those are just some cheap 2-ton AC Delco jackstands that I picked up at O'Reilly's for $20.

**JIMs70GMC** · 12-20-2003, 03:02 AM

Here some I bought at Sam's for $30 I believe:
http://67-72chevytrucks.com/vboard/s...threadid=73812

12-17-2003, 02:27 AM	#1
danadena1960 Registered User Join Date: Aug 2003 Location: Stockbridge, GA (Suburbs of Atlanta) Posts: 126	35x12.5 tire I am thinking of ditching my 16.5x8.75 for a set of 15x12 rims. The question I have is will a 35x12.5 work and look ok on a 12" rim? Eventually I plan on going to a 37x13.5 when the price gets more reasonable.

12-17-2003, 06:58 AM	#2
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Most manufacturers recommend 10" wide rims for a 12.5 tire. I've seen 12.5 tires on 12" wide rims and for street driving should be fine but you get the truck a little off camber and you'll probably loose the bead, wouldn't take much. Probably couldn't use the full load rating of the tire either. Even the 13.5 tire would be the same as the 12.5. Tires I've seen that recommend 12" wide rims are for example the 33/15.5-15 super swampers and in that case its 10-12" wide rim. Be careful. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

12-17-2003, 03:07 PM	#3
Beast388 Suburbans RULE! Join Date: Jan 2000 Location: Clinton, IA 52732 Posts: 689	I agree with Jim. A 15X12 rim is too wide for a 12.5" tire. I would go with a 15X10 or 15X8. Personally, I went with a 15X10 for my 35X12.5's. Attached Images __________________ --Ben 71 GMC Suburban 4X4 The "Beast" 388 CID Stroker, TH350, NP205, 8-lug D44, 14BFF w/ Detroit, 4.10:1 gears, 4-Wheel Disks 4" Lift, 35" MT/R's.

12-17-2003, 07:34 PM	#6
MJN Registered User Join Date: Feb 2000 Location: Maquoketa, Ia/ Orr, Mn Posts: 3,051	What are you doing with your old 16.5's? and where are you located? __________________ '51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com

12-17-2003, 08:42 PM	#9
714x4lover Registered User Join Date: Jun 2002 Location: Show Low, Arizona Posts: 211	wheels hey no prob maybe you can just send the wheels to me and we will be square how does that sound? lonn

12-17-2003, 05:04 PM	#5
714x4lover Registered User Join Date: Jun 2002 Location: Show Low, Arizona Posts: 211	IF YOU HAVE 8 LUG ROTORS AND CAIPERS IN FRONT THE 15" WHEEL WONT FIT OVER THE CALIPERS

12-17-2003, 07:45 PM	#8
danadena1960 Registered User Join Date: Aug 2003 Location: Stockbridge, GA (Suburbs of Atlanta) Posts: 126	My old 16.5's will be up for grabs. I live south of Atlanta GA. Thanks for the info. on the 15's not fitting, back in the day I had a old drum type 2 wheeler, I didn't think about the calipers. Thanks again.

12-18-2003, 12:28 AM	#10
chevy68388 king $h!t Join Date: Jan 2002 Location: spring valley/ohio/usa Posts: 416	u can make 15inch rims fit the 8 lug set up just grind the backs off the calipers. just dont take to much __________________ j dawg the 86 allmost done 357/700r4/lifted 9/dana44 front ten bolt rear/3.73 gears/35s

12-19-2003, 07:30 PM	#12
danadena1960 Registered User Join Date: Aug 2003 Location: Stockbridge, GA (Suburbs of Atlanta) Posts: 126	Thanks all for the info! I am looking at a set of American 15x10 81series wheels with a 4" back spacing Pete Paulsen has them for $77 each. Summit also has Bart's with 3 1/2 back spacing for $99 each. Thanks again ya'll, Dana __________________ Dana 77 K-20 454 73 SS El Camino 454 68 SS Camaro 327 48 Chevy 216 755 John Deere

12-19-2003, 09:01 PM	#13
Canadian694x4 Born To Lose Club Join Date: Feb 2003 Location: Calgary, Alberta/Oxenden, Ontario, Great White North Posts: 13,307	Beast388 what kind of axle stands are those? What Weight/size they are too... __________________ Brian Smith - "Born To Lose" 1969 Chevrolet K10 LWB Fleetside - Proud Owner For 22 Yrs - 1 of 208 Built & Sold In Canada!- 283 V8/350TH/NP208, 2" All Spring Lift, 32" Good Year MT/R's. 1972 GMC K2500 Custom LWB Fleetside - Proud Owner For 3 Yrs - 1 of 571 Built & Sold In Canada! - 350 V8/SM465/NP205, 4” Rough Country Lift, 33” Interco TSL Thornbirds 2007.5 GMC Sierra SLE 2500HD 4x4 - Proud Owner For 17 Yrs- 6.6L V8 Duramax Diesel/Allison 1000, 2" Lift, 33" Mickey Thompson MTZ's. 2008 Yamaha Raptor 700r - Proud Owner For 15 Yrs - ITP Mud Lites. 2015 John Deere 1025R - Proud Owner For 8 Yrs - 24HP Diesel/H120/54D/260B/SB1154. Last edited by Canadian694x4; 12-19-2003 at 09:05 PM.

12-20-2003, 03:02 AM	#15
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Here some I bought at Sam's for $30 I believe: http://67-72chevytrucks.com/vboard/s...threadid=73812 __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm



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