How big of tires can I put on a 04 1/2 4x4 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

teeitup · 05-09-2012, 06:36 PM

I'm looking at a 04 GMC SLE ext cab Z71 4x4 and it sits low to me, if I buy it was wondering how much bigger of tire I can put on it with out rubbing? I'll know what size tires are on it tonight after I look at it.
Thanks for any help, Randy

sdailey · 05-09-2012, 06:46 PM

Randy,

You can go with a 285, but you'll need to tighten the torsion bars to raise the front end for clearance.
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**truckdude239** · 05-09-2012, 06:58 PM

285/70r16 but the front bars will need to eb raised some

Vintage Windmills · 05-10-2012, 12:04 PM

Randy, thought you wanted a Duramax.

I had 285 75 18's on a 2005 2500hd with the t bars cranked and front inner fender plastic trimmed a tab. This was on an HD which also has a 2 or so inch body lift naturally (since the HD frame is 2 or so inches taller), which is also probably why this 1/2 ton now seems low to you. Get a Dmax or 8.1 2500hd and problem solved

and enough capacity to haul two parts trucks at a time.

grayharville · 05-11-2012, 12:57 AM

My buddy is running 305/70/16 buckshots on stock wheels with t bars maxed. Close, but no rub.

On my old 2000 model I was running 285/75/16 hercules trail diggers on stock wheels with bars cranked.

teeitup · 05-11-2012, 07:35 AM

THANKS for the info guys, I didn't buy this truck but its the style I'm going to get so now I know what I can put on with your help,

Jud, trying to get one with better MPG, that 6.0 about killed me at 10 MPG.

Thanks Randy

grayharville · 05-11-2012, 01:53 PM

To be honest, a half ton with stuffed tires wont get the best mpg, my old truck got 10 and my buddies gets 9, but he's on 35s now with just a body lift.
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Vintage Windmills · 05-11-2012, 02:06 PM

Quote:

Originally Posted by teeitup

THANKS for the info guys, I didn't buy this truck but its the style I'm going to get so now I know what I can put on with your help,

Jud, trying to get one with better MPG, that 6.0 about killed me at 10 MPG.

Thanks Randy

I hear ya, we got 11.5 going to seattle with empty 3000lb trailer and 7.5 to 9 coming home with an additional 8000 lbs. They say the 8.1 gets same empty as 6.0 and better loaded than a 6.0 and I believe it. You also have the 5 or 6spd auto allison thats part of the reason. My 5.3 1/2 ton z71 only got 15 empty but it had 4.10's and only 265/75/16's. For my 6.0 now, I am going to get the blackbear custom tune, hopefully good for the 1-2 mpg they claim. I'll let you know how it works out.

05-09-2012, 06:36 PM	#1
teeitup Just like to part out trucks!! Join Date: Nov 2001 Location: Meriden, Ks-North of Topeka 10 miles Posts: 27,396	How big of tires can I put on a 04 1/2 4x4 I'm looking at a 04 GMC SLE ext cab Z71 4x4 and it sits low to me, if I buy it was wondering how much bigger of tire I can put on it with out rubbing? I'll know what size tires are on it tonight after I look at it. Thanks for any help, Randy __________________ 67 Chev swb stepside 4x4 283 4 speed SOLD 72 blazer 4x4 4 speed Cheyenne 72 GMC swb 4x4 fleet 4 speed, original paint 1958 Cameo (one of 1405 built, it was my dads) 2020 chevy Apex 4x4 crew cab 1969 Z28 with the 302 1980 chevy swb 4x4 1964 chevell Malibu SS 1976 K20, sold new originally out of my dads chevy dealership Members that I've met, over 200 probably closer to 300 in the 12 years I've been on this site, everyone I met "It was a pleasure"

05-09-2012, 06:46 PM	#2
sdailey The Few, The Proud Join Date: Jun 2007 Location: Ball Ground, Georgia Posts: 1,830	Re: How big of tires can I put on a 04 1/2 4x4 Randy, You can go with a 285, but you'll need to tighten the torsion bars to raise the front end for clearance. Posted via Mobile Device __________________ Shannon

05-09-2012, 06:58 PM	#3
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,228	Re: How big of tires can I put on a 04 1/2 4x4 285/70r16 but the front bars will need to eb raised some __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

05-10-2012, 12:04 PM	#4
Vintage Windmills Vintage 4x4s Join Date: Sep 2010 Location: Prior Lake, MN Posts: 4,305	Re: How big of tires can I put on a 04 1/2 4x4 Randy, thought you wanted a Duramax. I had 285 75 18's on a 2005 2500hd with the t bars cranked and front inner fender plastic trimmed a tab. This was on an HD which also has a 2 or so inch body lift naturally (since the HD frame is 2 or so inches taller), which is also probably why this 1/2 ton now seems low to you. Get a Dmax or 8.1 2500hd and problem solved and enough capacity to haul two parts trucks at a time. __________________ 67 GMC K1500 Custom- 305V6 SM420, PTO, Ram Assist, yellow (the outcast) (project period correct upgrades) 67 GMC C2500 351V6 TH400, AC, PS, PB (can't decide what to do with. Update, decided to keep and will restore ) 86 CHV K30 502 th400, apple red NEW 71 CHV K20 350 SM465, ochre (saved work truck) 71 CHV K20 292 SM465, white, tach, PTO, (future project) 72 CHV K20 350 350th, medium blue (project stocker) 01 CHV K2500hd crew, indigo blue ^3 dont run and the others don't see winter either '86 K30 Cummins "Fireside" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=649649 '71 K20 "get driveable" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=590642 '72 K20 Build Thread: http://67-72chevytrucks.com/vboard/s...=493477&page=6

05-11-2012, 12:57 AM	#5
grayharville ^^who I am^^ what I say> Join Date: Jun 2009 Location: Murchison, Tx Posts: 992	Re: How big of tires can I put on a 04 1/2 4x4 My buddy is running 305/70/16 buckshots on stock wheels with t bars maxed. Close, but no rub. On my old 2000 model I was running 285/75/16 hercules trail diggers on stock wheels with bars cranked. __________________ 70 chevy LWB 350/TH350 Barn find (AKA the 70) http://www.67-72chevytrucks.com/vboa...d.php?t=406364 East Tx Squares

05-11-2012, 07:35 AM	#6
teeitup Just like to part out trucks!! Join Date: Nov 2001 Location: Meriden, Ks-North of Topeka 10 miles Posts: 27,396	Re: How big of tires can I put on a 04 1/2 4x4 THANKS for the info guys, I didn't buy this truck but its the style I'm going to get so now I know what I can put on with your help, Jud, trying to get one with better MPG, that 6.0 about killed me at 10 MPG. Thanks Randy __________________ 67 Chev swb stepside 4x4 283 4 speed SOLD 72 blazer 4x4 4 speed Cheyenne 72 GMC swb 4x4 fleet 4 speed, original paint 1958 Cameo (one of 1405 built, it was my dads) 2020 chevy Apex 4x4 crew cab 1969 Z28 with the 302 1980 chevy swb 4x4 1964 chevell Malibu SS 1976 K20, sold new originally out of my dads chevy dealership Members that I've met, over 200 probably closer to 300 in the 12 years I've been on this site, everyone I met "It was a pleasure"

05-11-2012, 01:53 PM	#7
grayharville ^^who I am^^ what I say> Join Date: Jun 2009 Location: Murchison, Tx Posts: 992	Re: How big of tires can I put on a 04 1/2 4x4 To be honest, a half ton with stuffed tires wont get the best mpg, my old truck got 10 and my buddies gets 9, but he's on 35s now with just a body lift. Posted via Mobile Device __________________ 70 chevy LWB 350/TH350 Barn find (AKA the 70) http://www.67-72chevytrucks.com/vboa...d.php?t=406364 East Tx Squares



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