tire size question?????? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bodazpa · 08-27-2003, 07:26 PM

I was just on the phone with a guy from Desert rat, and he had to throw me a curve ball... I was all set up to order 35x12.5 parnelli jones tires on 15x10 m/t classicII wheels...The problem I have is this guy says he thinks that the sidewalls on the pj`s will rub with only a 4in lift...it`s a 1971 short bed 4x4 with a brand new soft ride sus lift...question is do I go with the 35`s and take a chance that they will hit or just be safe and go with 33`s.......thanks John

3wbdriver · 08-27-2003, 09:06 PM

I'm running 35-12.5's on my Blazer with a 4" lift. I don't currently have clearance problems, but the owner before me had cut clearance for 36-14.5's. Take a look at this pic, and try to guestimate what you are looking at. I'm repairing these panels over the winter, but still have concerns of my own.

trukkers69 · 08-27-2003, 09:33 PM

I'm running 35/12.50 BFG at's on 15x10 w/3.5 back spacing with 4 in. rancho lift and they WILL rub when turning If the suspension flexes . If your gonna wheel it run 33's , If street only 35's will work. Hope this helps. Jeff

Pont · 08-27-2003, 09:40 PM

bodazpa (John)

I'm not sure if this info will help you decide or not, because many on this board are running a 35x12.5 tire with a 4" lift and no clearance problems. Well, here it goes.

Not knowing what the tread design is like on the parnelli jones tires, you may or may not have clearance issues. I tend to think that most people who are running an All Terrain tire are fine but a more aggressive tread might be a problem. A friend of mine had a 70 shortbed 4x4 with 35x12.5 All Terrain tires mounted on 15x12 rims with a 6" lift and he had rubbing problems. His rims were 2" wider but he also had 2 more inches of lift. I personally run the Super Swamper SSR radial and they are fairly aggressive compared to an All Terrain tire. Mine are 35x14.5 mounted on 15x14 rims and I'm running 8" of suspension lift and mine will rub if I flex it just right. For normall everyday driving, mine doesn't rub and it's fine.

I would think (depending on the offset of your 15x10 rims or the amount of backspacing you have) that the tires you were ready to order may or may not rub depending on how true the tire size is and how aggressive the tread design is.

Hope this helps, let me know if I can help in any other way........

Rob Pont

**JIMs70GMC** · 08-28-2003, 07:08 AM

You can look at the pics in my signature, I have 2" lift w/ 33s on 15x10 w/ 4" bs and they don't rub, not even w/ 2 tons of sand in the back.

Oh yeah, the swampers I have are almost 34" tall. Have you checked to see what the PJ website says about tire height? Not all 35s are created equal. I had some 35" Mud kings that were slightly over 34" new.

**Yukon Jack** · 08-29-2003, 11:06 AM

From a review I read, PJ's tires are very close to advertised height. I'm thinking you will have some contact with those tires.

bodazpa · 08-30-2003, 03:13 AM

Well I wimped out and ordered the 33`s. I put way to much time in this truck to tear off a fender....thanks john

08-27-2003, 07:26 PM	#1
bodazpa Registered User Join Date: Feb 2002 Location: 283 Small Block ln. apt k10 Chevyland N.J. Posts: 261	tire size question?????? I was just on the phone with a guy from Desert rat, and he had to throw me a curve ball... I was all set up to order 35x12.5 parnelli jones tires on 15x10 m/t classicII wheels...The problem I have is this guy says he thinks that the sidewalls on the pj`s will rub with only a 4in lift...it`s a 1971 short bed 4x4 with a brand new soft ride sus lift...question is do I go with the 35`s and take a chance that they will hit or just be safe and go with 33`s.......thanks John __________________ 71 chevy 4x4 ,np205 transfer case, 3 speed tranny, sjs 283, 4in suspension lift, and 71 hugger orange paint,33x12.5 parnelli jones on 15x10 m/t classicII, cowl hood,new bed painted, linex liner. Truck has been completed since 2005.... 2003 Chevy Avalanche Z71, on 6in super lift w/ 35in tires RNG4x4 aka the "Redneck Roller" words to live by "If it fits, it fits" "friends help you move, real friends help you move bodies..." Sponsored by "Kick Ass Kustom"

08-27-2003, 09:06 PM	#2
3wbdriver Registered User Join Date: Aug 2003 Location: West Central Louisiana Posts: 82	I'm running 35-12.5's on my Blazer with a 4" lift. I don't currently have clearance problems, but the owner before me had cut clearance for 36-14.5's. Take a look at this pic, and try to guestimate what you are looking at. I'm repairing these panels over the winter, but still have concerns of my own. Attached Images __________________ '72 Blazer, 4WD, 350/4 spd. Affectionately known as "Da Beast" '04 Silverado (new daily driver) '00 Intrepid (wife's ride) It's a BLAZER dude! No options, no emblems, no a/c, no fancy shmancy. It's a BLAZER....

08-27-2003, 09:33 PM	#3
trukkers69 Registered User Join Date: Jan 2003 Location: Sebastopol Miss. Posts: 169	I'm running 35/12.50 BFG at's on 15x10 w/3.5 back spacing with 4 in. rancho lift and they WILL rub when turning If the suspension flexes . If your gonna wheel it run 33's , If street only 35's will work. Hope this helps. Jeff __________________ EXPERIMENTAL STAGES OF SANITY _____________________________ Run whatcha brung, and hope you brung enuff

08-27-2003, 09:40 PM	#4
Pont I need another Barley Pop Join Date: Feb 2001 Location: Grants Pass, OR Posts: 1,629	bodazpa (John) I'm not sure if this info will help you decide or not, because many on this board are running a 35x12.5 tire with a 4" lift and no clearance problems. Well, here it goes. Not knowing what the tread design is like on the parnelli jones tires, you may or may not have clearance issues. I tend to think that most people who are running an All Terrain tire are fine but a more aggressive tread might be a problem. A friend of mine had a 70 shortbed 4x4 with 35x12.5 All Terrain tires mounted on 15x12 rims with a 6" lift and he had rubbing problems. His rims were 2" wider but he also had 2 more inches of lift. I personally run the Super Swamper SSR radial and they are fairly aggressive compared to an All Terrain tire. Mine are 35x14.5 mounted on 15x14 rims and I'm running 8" of suspension lift and mine will rub if I flex it just right. For normall everyday driving, mine doesn't rub and it's fine. I would think (depending on the offset of your 15x10 rims or the amount of backspacing you have) that the tires you were ready to order may or may not rub depending on how true the tire size is and how aggressive the tread design is. Hope this helps, let me know if I can help in any other way........ Rob Pont __________________ 67 Short Fleet 4x4 04 Honda CRF450R 89 Toyota 4-Runner 34 Ford 2 door sedan - Long term project ---------------------------------------------- There is a very fine line between "hobby" and "mental illness"

08-28-2003, 07:08 AM	#5
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	You can look at the pics in my signature, I have 2" lift w/ 33s on 15x10 w/ 4" bs and they don't rub, not even w/ 2 tons of sand in the back. Oh yeah, the swampers I have are almost 34" tall. Have you checked to see what the PJ website says about tire height? Not all 35s are created equal. I had some 35" Mud kings that were slightly over 34" new. __________________ 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

08-29-2003, 11:06 AM	#6
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,686	From a review I read, PJ's tires are very close to advertised height. I'm thinking you will have some contact with those tires. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14

08-30-2003, 03:13 AM	#7
bodazpa Registered User Join Date: Feb 2002 Location: 283 Small Block ln. apt k10 Chevyland N.J. Posts: 261	Well I wimped out and ordered the 33`s. I put way to much time in this truck to tear off a fender....thanks john __________________ 71 chevy 4x4 ,np205 transfer case, 3 speed tranny, sjs 283, 4in suspension lift, and 71 hugger orange paint,33x12.5 parnelli jones on 15x10 m/t classicII, cowl hood,new bed painted, linex liner. Truck has been completed since 2005.... 2003 Chevy Avalanche Z71, on 6in super lift w/ 35in tires RNG4x4 aka the "Redneck Roller" words to live by "If it fits, it fits" "friends help you move, real friends help you move bodies..." Sponsored by "Kick Ass Kustom"

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