40" military tires - The 1947 - Present Chevrolet & GMC Truck Message Board Network

GMC71k20 · 10-14-2004, 07:38 PM

sorry for being a post whore but i need answers before i possibly send a money order out this weekend. the tires are 40"x12.5"/20r. they are military take offs. does anyone know anything about these tires? can i run them on the street? anyone know where i can find info on them? can i run these on some 8 lug 20x10 like these

Steven Sellers · 10-14-2004, 08:11 PM

What is the size on the side of the tire? We have a tire like that on our 6x6 tractors that we pull our trailors with. They are the same pattern but I believe ours are 14.00x????? Ill have to look tomorrow. Kinda curious cause the tires we have are pretty tall

GMC71k20 · 10-14-2004, 08:24 PM

they are 40x12.5. they are used on military 6x6s

shade67 · 10-14-2004, 09:51 PM

they are used on the national guard extended use program M35A3 they are a pretty good tire they have a bit of a hum going down the road though. I don't know what speed they are good to but most military truck tires shouldn't be run over 70 mph as they are built by the lowest bidder and tend to start to come apart over that speed as no military vehicle is designed to go over 55-60 mph. if youv'e seen what happens to a m35 series when the tire comes apart at highway speed you'll understand why they only go 55.
P. S. I order those tires quite a bit lately- dry rot - probably make cool tires on an off road only vehicle!

GMC71k20 · 10-14-2004, 10:30 PM

are they badly dry rotted? i only plan on using these for shows and playing around. would you see any problem with me mounting them on a regular 20" truck rim?

86dieselburb · 10-14-2004, 09:47 PM

Those tires are made by Michelin. Here's a link with some specs.

http://www.unimogcanada.com/images/tires/XL_tire.jpg

*1FaastC10* · 10-14-2004, 10:29 PM

hmmm... Michelin... long lasting tires. sounds like the ticket for my K10 so i dont wear the crap out of my Swampers...

Steven Sellers · 10-14-2004, 10:33 PM

You must have one heck of a lift if your gonna put these on a truck. As far as offroad we did stick one last year but we were pullin a 60,000 trailor out of a pretty muddy spot. The only problem Ive seen is our big tractors cant get any wheel speed to clean the lugs well at least with all that weight attached. I can get you pics of them on a 6x6 if you would like.

GMC71k20 · 10-14-2004, 11:01 PM

ya the pics would be nice. where have you bought yours from?

GMC71k20 · 10-14-2004, 11:05 PM

do you guys like the rim i posted? any other suggestions for rims?

GMC71k20 · 10-14-2004, 11:08 PM

1faastc10, if you want i can give you this guys e-mail address. i havent done any business with him yet but hes got good feedback on ebay. he also has some 36x12.5 hummer tires for sale. i might get some for bombing arond town and some off roading

*1FaastC10* · 10-14-2004, 10:54 PM

they're available in a 38.7" size for a 16" rim too.

1969 GMC · 10-14-2004, 11:15 PM

do you still have the stock dana 44?

with 40" tires it is time for a dana 60 up front. not just for the strength (Although you do need it)...you need better brakes to stop some heavy ass tires like that. You probably know this already, just thought I'd chip in my 2 cents.

GMC71k20 · 10-14-2004, 11:30 PM

ya, im on the hunt for a dana 60 and plan on doing the black birds custom rear disc conversion. just need my vaca/sick/holiday/personal pay.

1969 GMC- what do you think about this, im not a fan of 20s but on 40's they shouldnt look half bad,

andrew king · 10-15-2004, 02:19 AM

IS it the same guy on ebay lives here in California if it is watchout !!!! I was going to buy some Hummer wheeels of him military style and he was kind of shady to say the least wanted me to send a money order to a po box different town from where he lived and then said 2-3 weeks for delivery I told him to F#@K off .. Anyway good luck

2wdBlazer · 10-15-2004, 08:49 AM

8 inches WILL NOT clear 40's. Better have some more lift on the way if they measure a true 40. Like I said before, if you run a true 38, you will be a street queen. No clearance is bad. Just say no to the SAW-ZAW!!!

GMC71k20 · 10-15-2004, 12:21 PM

I'd say yes to a body lift. alex ran some 40s with an 8" lift on his old truck.

Andrew King - this guy is based out of PA

Me and mac67 were talking, and we think these tires might need a rim with a special bead. Unless i can find someone that has done this before I might pass. Too big of a purchase to take a risk with. I dont want to have to donate them to the local playground after I realize theyre useless to me.

ryanroo · 10-15-2004, 01:39 PM

Quote:

Originally Posted by 2wdBlazer

8 inches WILL NOT clear 40's. Better have some more lift on the way if they measure a true 40. Like I said before, if you run a true 38, you will be a street queen. No clearance is bad. Just say no to the SAW-ZAW!!!

I have 39 inch mickeys on my truck, and they have only rubbed once and it was the droop side of the axle that did. my only lift is skyjacker all spring 8 inch, paired with rotted and mashed body bushings. i know they aren't 40 inches but they measure around 38 3/4 ish. it was no trailer queen before i started taking it apart.

If you are looking for tires i would sell you my 39-15/16.5 mickeys... only have like 2500 street miles on them and about 15 dirt. they are in great shape.
Ryan

2wdBlazer · 10-15-2004, 02:38 PM

Quote:

Originally Posted by ryanroo

I have 39 inch mickeys on my truck, and they have only rubbed once and it was the droop side of the axle that did. my only lift is skyjacker all spring 8 inch, paired with rotted and mashed body bushings. i know they aren't 40 inches but they measure around 38 3/4 ish. it was no trailer queen before i started taking it apart.

If you are looking for tires i would sell you my 39-15/16.5 mickeys... only have like 2500 street miles on them and about 15 dirt. they are in great shape.
Ryan

That's funny. Mine rub on just light-moderate stuff and I have 9 inches. Mine measure about 38.2 inches. Only rubs the rear corner of the front fender well.

Budweis · 10-15-2004, 02:48 PM

why put it on right on the extreme of rubbing? just curious. to me a 4x4 is worthless if cant use it hard off road. just wondering

2wdBlazer · 10-15-2004, 02:55 PM

Quote:

Originally Posted by Budweis

why put it on right on the extreme of rubbing? just curious. to me a 4x4 is worthless if cant use it hard off road. just wondering

You talking to him or me? My truck has a 6 inch spring and 3 inch body that came with the truck. I will probably swap to 8 inch springs or run 36's next time. Undecided.

CrazyCooter · 10-19-2004, 11:39 PM

Quote:

Originally Posted by ryanroo

I have 39 inch mickeys on my truck, and they have only rubbed once and it was the droop side of the axle that did. my only lift is skyjacker all spring 8 inch, paired with rotted and mashed body bushings. i know they aren't 40 inches but they measure around 38 3/4 ish. it was no trailer queen before i started taking it apart.

If you are looking for tires i would sell you my 39-15/16.5 mickeys... only have like 2500 street miles on them and about 15 dirt. they are in great shape.
Ryan

That's funny, Im have a 8" spring lift and 35's. Rubs almost any time I twist it offroad. And that is with the swaybar still hooked up!

*gn4u2c* · 10-15-2004, 03:05 PM

My old blazer had a 8' lift and it was NOT enough for 38's on the trails I peeled the hell out of my fenders

well saved me time with the saws all but it gouged the tires up a bit also.

Budweis · 10-15-2004, 05:30 PM

meant to ask for the two people mentioned who run or want to run 40" tires on a 8" lift truck. basically i see it all the time where people set up their 4x4's to the point where tire will rub on any off roading and was just wondering why? isnt the whole point of a 4x4 to go in rough terrain? am i missing something?

*1FaastC10* · 10-15-2004, 07:02 PM

im running 6" and it will clear 39.5"s+ with no problem. i love my body saw.

10-14-2004, 07:38 PM	#1
GMC71k20 Registered User Join Date: Aug 2002 Location: mass Posts: 1,277	40" military tires sorry for being a post whore but i need answers before i possibly send a money order out this weekend. the tires are 40"x12.5"/20r. they are military take offs. does anyone know anything about these tires? can i run them on the street? anyone know where i can find info on them? can i run these on some 8 lug 20x10 like these Attached Images

10-14-2004, 08:11 PM	#2
Steven Sellers Registered User Join Date: Jan 2002 Location: North Carolina Posts: 692	What is the size on the side of the tire? We have a tire like that on our 6x6 tractors that we pull our trailors with. They are the same pattern but I believe ours are 14.00x????? Ill have to look tomorrow. Kinda curious cause the tires we have are pretty tall __________________ 2008 Buick Enclave(wifes new non wrecked) 1996 Jeep Cherokee 2002 2500HD 6.0L (traded) 1998 Jeep Grand Cherokee(wifes/wrecked) 1977 DJ5 postal jeep(mmm lots of fun) 1988 Toyota 2wd p/u(DD, blewup 199,000) 1991 Toyota 2ed p/u (sry just cant break these things) 1997 XR70 Honda 1991 Z50(FOR SALE) 1972 Z50 Honda 1970 SWB 350/knucklebuster "The adventure begins and I am confident that there will be no end".

10-14-2004, 09:51 PM	#4
shade67 Registered User Join Date: Jan 2004 Location: Portage, WI Posts: 89	they are used on the national guard extended use program M35A3 they are a pretty good tire they have a bit of a hum going down the road though. I don't know what speed they are good to but most military truck tires shouldn't be run over 70 mph as they are built by the lowest bidder and tend to start to come apart over that speed as no military vehicle is designed to go over 55-60 mph. if youv'e seen what happens to a m35 series when the tire comes apart at highway speed you'll understand why they only go 55. P. S. I order those tires quite a bit lately- dry rot - probably make cool tires on an off road only vehicle! __________________ Scott 66 chevy short step 327 4speed 67 chevy Short Fleet tpi 350 700r4 72 chevy K10 swb 01 GMC Sierra 01 Pontiac Bonneville

10-14-2004, 10:33 PM	#8
Steven Sellers Registered User Join Date: Jan 2002 Location: North Carolina Posts: 692	You must have one heck of a lift if your gonna put these on a truck. As far as offroad we did stick one last year but we were pullin a 60,000 trailor out of a pretty muddy spot. The only problem Ive seen is our big tractors cant get any wheel speed to clean the lugs well at least with all that weight attached. I can get you pics of them on a 6x6 if you would like. __________________ 2008 Buick Enclave(wifes new non wrecked) 1996 Jeep Cherokee 2002 2500HD 6.0L (traded) 1998 Jeep Grand Cherokee(wifes/wrecked) 1977 DJ5 postal jeep(mmm lots of fun) 1988 Toyota 2wd p/u(DD, blewup 199,000) 1991 Toyota 2ed p/u (sry just cant break these things) 1997 XR70 Honda 1991 Z50(FOR SALE) 1972 Z50 Honda 1970 SWB 350/knucklebuster "The adventure begins and I am confident that there will be no end".

10-14-2004, 11:15 PM	#13
1969 GMC Registered User Join Date: Feb 2003 Location: The Rubber City Posts: 5,498	do you still have the stock dana 44? with 40" tires it is time for a dana 60 up front. not just for the strength (Although you do need it)...you need better brakes to stop some heavy ass tires like that. You probably know this already, just thought I'd chip in my 2 cents. __________________ 1969 GMC K2500 1996 Honda Accord 2007 Kawasaki KLR 650

10-14-2004, 08:24 PM	#3
GMC71k20 Registered User Join Date: Aug 2002 Location: mass Posts: 1,277	they are 40x12.5. they are used on military 6x6s

10-14-2004, 10:30 PM	#5
GMC71k20 Registered User Join Date: Aug 2002 Location: mass Posts: 1,277	are they badly dry rotted? i only plan on using these for shows and playing around. would you see any problem with me mounting them on a regular 20" truck rim?

10-14-2004, 09:47 PM	#6
86dieselburb Registered User Join Date: Sep 2004 Location: Crestline, CA Posts: 128	Those tires are made by Michelin. Here's a link with some specs. http://www.unimogcanada.com/images/tires/XL_tire.jpg

10-14-2004, 10:29 PM	#7
1FaastC10 Account Suspended Join Date: Oct 2002 Location: Elkhart, IN Posts: 6,399	hmmm... Michelin... long lasting tires. sounds like the ticket for my K10 so i dont wear the crap out of my Swampers...

10-14-2004, 11:01 PM	#9
GMC71k20 Registered User Join Date: Aug 2002 Location: mass Posts: 1,277	ya the pics would be nice. where have you bought yours from?

10-14-2004, 11:05 PM	#10
GMC71k20 Registered User Join Date: Aug 2002 Location: mass Posts: 1,277	do you guys like the rim i posted? any other suggestions for rims?

10-14-2004, 11:08 PM	#11
GMC71k20 Registered User Join Date: Aug 2002 Location: mass Posts: 1,277	1faastc10, if you want i can give you this guys e-mail address. i havent done any business with him yet but hes got good feedback on ebay. he also has some 36x12.5 hummer tires for sale. i might get some for bombing arond town and some off roading

10-14-2004, 10:54 PM	#12
1FaastC10 Account Suspended Join Date: Oct 2002 Location: Elkhart, IN Posts: 6,399	they're available in a 38.7" size for a 16" rim too.

10-14-2004, 11:30 PM	#14
GMC71k20 Registered User Join Date: Aug 2002 Location: mass Posts: 1,277	ya, im on the hunt for a dana 60 and plan on doing the black birds custom rear disc conversion. just need my vaca/sick/holiday/personal pay. 1969 GMC- what do you think about this, im not a fan of 20s but on 40's they shouldnt look half bad,

10-15-2004, 02:19 AM	#15
andrew king Registered User Join Date: Apr 2004 Location: Susanville CA, home of 6000 convicts lol Posts: 157	IS it the same guy on ebay lives here in California if it is watchout !!!! I was going to buy some Hummer wheeels of him military style and he was kind of shady to say the least wanted me to send a money order to a po box different town from where he lived and then said 2-3 weeks for delivery I told him to F#@K off .. Anyway good luck



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10-15-2004, 08:49 AM	#16
2wdBlazer The Blazer King Join Date: Sep 2000 Location: Valrico, Fl (Tampa) Posts: 1,212	8 inches WILL NOT clear 40's. Better have some more lift on the way if they measure a true 40. Like I said before, if you run a true 38, you will be a street queen. No clearance is bad. Just say no to the SAW-ZAW!!! __________________ 72 2wd Blazer. Its the superbichinest, megacoolinest, superflowinest.

10-15-2004, 12:21 PM	#17
GMC71k20 Registered User Join Date: Aug 2002 Location: mass Posts: 1,277	I'd say yes to a body lift. alex ran some 40s with an 8" lift on his old truck. Andrew King - this guy is based out of PA Me and mac67 were talking, and we think these tires might need a rim with a special bead. Unless i can find someone that has done this before I might pass. Too big of a purchase to take a risk with. I dont want to have to donate them to the local playground after I realize theyre useless to me.

10-15-2004, 02:48 PM	#20
Budweis Geared for Collision Join Date: Jan 2004 Location: St. Louis, Mo. Posts: 683	why put it on right on the extreme of rubbing? just curious. to me a 4x4 is worthless if cant use it hard off road. just wondering __________________ MEMBER OF THE 4 WHEEL DISK BRAKE CLUB 1970 C/K20 3/4 Ton 1996 Collectors Edition Corvette 1977 Corvette Coupe

10-15-2004, 03:05 PM	#23
gn4u2c Account Suspended Join Date: Mar 2003 Location: southern pa Posts: 698	My old blazer had a 8' lift and it was NOT enough for 38's on the trails I peeled the hell out of my fenders well saved me time with the saws all but it gouged the tires up a bit also.

10-15-2004, 05:30 PM	#24
Budweis Geared for Collision Join Date: Jan 2004 Location: St. Louis, Mo. Posts: 683	meant to ask for the two people mentioned who run or want to run 40" tires on a 8" lift truck. basically i see it all the time where people set up their 4x4's to the point where tire will rub on any off roading and was just wondering why? isnt the whole point of a 4x4 to go in rough terrain? am i missing something? __________________ MEMBER OF THE 4 WHEEL DISK BRAKE CLUB 1970 C/K20 3/4 Ton 1996 Collectors Edition Corvette 1977 Corvette Coupe Last edited by Budweis; 10-15-2004 at 05:33 PM.

10-15-2004, 07:02 PM	#25
1FaastC10 Account Suspended Join Date: Oct 2002 Location: Elkhart, IN Posts: 6,399	im running 6" and it will clear 39.5"s+ with no problem. i love my body saw.

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