whats the biggest size tire i can go with--no lift - The 1947 - Present Chevrolet & GMC Truck Message Board Network

67cst · 10-16-2004, 10:47 PM

hey guys im looking for some tires to put on my 71 gmc 4x4 i just bought, how big can i go without rubbing? i dont plan on any crazy 4 wheeling, mostly just a daily driver and a bit of fishing/camping, i guess i should also add that im planning on getting some ralleys, so the rims will be 8 inches wide

thanks, Derek

Destructo · 10-16-2004, 10:58 PM

I have 33x12.5's on 15x8" rims with 3.73" BSing on my truck, I have 3 leaf springs in the front also and that raises the front and makes the truck sit pretty level with the rear, no rubbing as of yet, but it hasn't been off-road either, seems like may rub with lots of flex and no swaybar.

I think 32x11.5" tires would clear with no rubbing, 33x12.5's may rub some, just depends on how low your truck is sitting, and wheel combo and the actual measurement of the tire.

griesel72 · 10-16-2004, 11:12 PM

yep, 33 12.50's fit, barely, on my truck, make it look pretty mean

67cst · 10-17-2004, 04:26 AM

griesel- got any pics?

thanks

**FRENCHBLUE72** · 10-17-2004, 10:02 AM

I have 32x11.20x15 's on my blazer and ton's of room or so it look's like anyway's never had em rub....

67cst · 10-17-2004, 01:10 PM

right on french-

can you guys post some pics of your trucks so i can get an idea of what they look like with no lift and the tire sizes mentioned above?

thanks

Budweis · 10-17-2004, 08:10 PM

heres my truck before i dissasembled with no lift and 33 x 12.5 tires, hope it helps.

2wdBlazer · 10-17-2004, 08:22 PM

I think 3/4 ton's sit higher. A 1/2 ton should be tucked up nicely.

67cst · 10-17-2004, 10:02 PM

cool guys, thanks

BurnoutNova · 10-19-2004, 01:36 AM

i had 33x12.5's on my stock 69 K-20 and there was plenty of room...

right now (actully today...) i put 33's on my 71 K-10 (factory HD front springs) and they fit, there close in the front, but they dont rub. i havnt been off road yet... i bet they'll rub then. i was going to put helper springs in the front and maybe a 2" block in the back... just so the res a little more room

and... on my friends 86 K-10 we put 35x14.5 "gumbo monster mudder" (looks like a knock off of tsl's) and they fit... but the front fenders rub if he turns hard... man, do those things throw mud!!! we ran water in his field for about 1/2 hour, till it was real muddy and went and tore thorugh it...it was sweet

BurnoutNova · 10-20-2004, 02:51 AM

heres my stock 71 K-10, with 33's on it, definately sits shorter than a 3/4 ton. it soesnt rub, but it looks like it could if i hit the right pothole or somthing. i think my truck needs about 2" lift and then just do the body and it'll be good enough for daily drivin.

Bobalouie · 10-20-2004, 04:20 PM

Here is my 72 which has no lift and 32x11.50x15's on it. It is saggy in the back, due to my 400 SBC in the bed.

Destructo · 10-20-2004, 10:21 PM

heres my 85 with 1 1/4 ton CUCV springs in front and stock 1/2 tons in the rear, makes the truck sit level with the 3 leaf CUCV springs in the front.

67cst · 10-22-2004, 02:23 AM

hey guys, i ended up going with some 31x12.5s
i know they are smaller but on the ralleys they look sharp, and i dont have to worry about any rubbing issues

sorry about the very dark pic, ill get good ones on saturday

Destructo · 10-22-2004, 08:46 AM

what kind of tires are they? Only 31x12.5" tires I know are pro comps, but I don't look around too much, I thought about putting some 31x12.5's on mine myself.

10-16-2004, 10:47 PM	#1
67cst i love summertime Join Date: Jul 2002 Location: Kelowna BC Posts: 4,303	whats the biggest size tire i can go with--no lift hey guys im looking for some tires to put on my 71 gmc 4x4 i just bought, how big can i go without rubbing? i dont plan on any crazy 4 wheeling, mostly just a daily driver and a bit of fishing/camping, i guess i should also add that im planning on getting some ralleys, so the rims will be 8 inches wide thanks, Derek __________________ 1967 shortbox stepside Chevy, 365 hp 327, th400. GLOVE BOX LIGHTS FORSALE, click link for info http://67-72chevytrucks.com/vboard/s...d.php?t=273724

10-16-2004, 10:58 PM	#2
Destructo Registered User Join Date: Sep 2003 Location: Lewisville, NC Posts: 1,836	I have 33x12.5's on 15x8" rims with 3.73" BSing on my truck, I have 3 leaf springs in the front also and that raises the front and makes the truck sit pretty level with the rear, no rubbing as of yet, but it hasn't been off-road either, seems like may rub with lots of flex and no swaybar. I think 32x11.5" tires would clear with no rubbing, 33x12.5's may rub some, just depends on how low your truck is sitting, and wheel combo and the actual measurement of the tire. __________________ 1985 Scottsdale Shortbed 4x4 Stout 350 with some "upgrades"-700r4-33x12.5" Mud Tires, Warn 8274-50 winch. 2005 Chevrolet Colorado Regular Cab 2wd 4-banger, 5 speed, Street Pack with 3.73 axle.

10-16-2004, 11:12 PM	#3
griesel72 Senior Member Join Date: Apr 2003 Location: Howard, Kansas USA Posts: 1,997	yep, 33 12.50's fit, barely, on my truck, make it look pretty mean __________________ 1969 K10 Custom 10 1997 Z71 2006 Volkswagen Jetta TDI 2006 King Ranch 1980 Wife

10-17-2004, 04:26 AM	#4
67cst i love summertime Join Date: Jul 2002 Location: Kelowna BC Posts: 4,303	griesel- got any pics? thanks __________________ 1967 shortbox stepside Chevy, 365 hp 327, th400. GLOVE BOX LIGHTS FORSALE, click link for info http://67-72chevytrucks.com/vboard/s...d.php?t=273724

10-17-2004, 10:02 AM	#5
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,591	I have 32x11.20x15 's on my blazer and ton's of room or so it look's like anyway's never had em rub.... __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

10-17-2004, 01:10 PM	#6
67cst i love summertime Join Date: Jul 2002 Location: Kelowna BC Posts: 4,303	right on french- can you guys post some pics of your trucks so i can get an idea of what they look like with no lift and the tire sizes mentioned above? thanks __________________ 1967 shortbox stepside Chevy, 365 hp 327, th400. GLOVE BOX LIGHTS FORSALE, click link for info http://67-72chevytrucks.com/vboard/s...d.php?t=273724

10-17-2004, 08:10 PM	#7
Budweis Geared for Collision Join Date: Jan 2004 Location: St. Louis, Mo. Posts: 683	heres my truck before i dissasembled with no lift and 33 x 12.5 tires, hope it helps. Attached Images __________________ MEMBER OF THE 4 WHEEL DISK BRAKE CLUB 1970 C/K20 3/4 Ton 1996 Collectors Edition Corvette 1977 Corvette Coupe

10-17-2004, 08:22 PM	#8
2wdBlazer The Blazer King Join Date: Sep 2000 Location: Valrico, Fl (Tampa) Posts: 1,213	I think 3/4 ton's sit higher. A 1/2 ton should be tucked up nicely. __________________ 72 2wd Blazer. Its the superbichinest, megacoolinest, superflowinest.

10-17-2004, 10:02 PM	#9
67cst i love summertime Join Date: Jul 2002 Location: Kelowna BC Posts: 4,303	cool guys, thanks __________________ 1967 shortbox stepside Chevy, 365 hp 327, th400. GLOVE BOX LIGHTS FORSALE, click link for info http://67-72chevytrucks.com/vboard/s...d.php?t=273724

10-19-2004, 01:36 AM	#10
BurnoutNova Registered User Join Date: Mar 2004 Location: CA Posts: 2,057	i had 33x12.5's on my stock 69 K-20 and there was plenty of room... right now (actully today...) i put 33's on my 71 K-10 (factory HD front springs) and they fit, there close in the front, but they dont rub. i havnt been off road yet... i bet they'll rub then. i was going to put helper springs in the front and maybe a 2" block in the back... just so the res a little more room and... on my friends 86 K-10 we put 35x14.5 "gumbo monster mudder" (looks like a knock off of tsl's) and they fit... but the front fenders rub if he turns hard... man, do those things throw mud!!! we ran water in his field for about 1/2 hour, till it was real muddy and went and tore thorugh it...it was sweet Last edited by BurnoutNova; 10-19-2004 at 01:39 AM.

10-20-2004, 02:51 AM	#11
BurnoutNova Registered User Join Date: Mar 2004 Location: CA Posts: 2,057	heres my stock 71 K-10, with 33's on it, definately sits shorter than a 3/4 ton. it soesnt rub, but it looks like it could if i hit the right pothole or somthing. i think my truck needs about 2" lift and then just do the body and it'll be good enough for daily drivin.

10-20-2004, 04:20 PM	#12
Bobalouie Fetzer Valve Technician Join Date: Jun 2003 Location: Stillwater, OK Posts: 205	Here is my 72 which has no lift and 32x11.50x15's on it. It is saggy in the back, due to my 400 SBC in the bed. Attached Images __________________ 1972 Chevy K10 SWB

10-20-2004, 10:21 PM	#13
Destructo Registered User Join Date: Sep 2003 Location: Lewisville, NC Posts: 1,836	heres my 85 with 1 1/4 ton CUCV springs in front and stock 1/2 tons in the rear, makes the truck sit level with the 3 leaf CUCV springs in the front. Attached Images __________________ 1985 Scottsdale Shortbed 4x4 Stout 350 with some "upgrades"-700r4-33x12.5" Mud Tires, Warn 8274-50 winch. 2005 Chevrolet Colorado Regular Cab 2wd 4-banger, 5 speed, Street Pack with 3.73 axle.

10-22-2004, 02:23 AM	#14
67cst i love summertime Join Date: Jul 2002 Location: Kelowna BC Posts: 4,303	hey guys, i ended up going with some 31x12.5s i know they are smaller but on the ralleys they look sharp, and i dont have to worry about any rubbing issues sorry about the very dark pic, ill get good ones on saturday Attached Images __________________ 1967 shortbox stepside Chevy, 365 hp 327, th400. GLOVE BOX LIGHTS FORSALE, click link for info http://67-72chevytrucks.com/vboard/s...d.php?t=273724

10-22-2004, 08:46 AM	#15
Destructo Registered User Join Date: Sep 2003 Location: Lewisville, NC Posts: 1,836	what kind of tires are they? Only 31x12.5" tires I know are pro comps, but I don't look around too much, I thought about putting some 31x12.5's on mine myself. __________________ 1985 Scottsdale Shortbed 4x4 Stout 350 with some "upgrades"-700r4-33x12.5" Mud Tires, Warn 8274-50 winch. 2005 Chevrolet Colorado Regular Cab 2wd 4-banger, 5 speed, Street Pack with 3.73 axle.



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