14R20 Tires On MTV

[dronsen]

Has anyone successfully mounted 14R20's (14.00R20) on a MTV? I'm pretty sure height won't be an issue but a little concerned about steer tires rubbing. Any input appreciated.

Thanks

 

[Suprman]

1400s fit. There was a thread about larger tires a while back.

 

[dronsen]

Thanks Will - I could have sworn I read about it but tried 3 searches and came up with zip.

 

[NDT]

Floridanson was the poster if I recall.

 

[scottmandu]

1400R20's fit.. 1600R20's won't clear the front stowage boxes at full lock, and if you have a winch the hydraulic fluid tank guard won't clear either. I think with a 2 inch cab lift 2 inch suspension lift and some trimming it will all work well with 1600R20's.

 

[coachgeo]

what I can't recall from other threads if the 14R20 or 16R20 bring any advantage when compared to " cost of tire X 5 ". From the one thread did review the otherday the 16R20 (53inch?) by the time you include slow down on grades.. it seemed not worth it.

 

[dronsen]

Thanks for the responses...just looking for less expansive way to get a few more MPH over gear swap. My back-of-the-napkin math tells me that the 14R20's would provide roughly 62 MPH vs 58.

 

[73m819]

WHY do a lot members WANT to go FAST in a military truck that is NOT designed to go fast on tires that DO NOT have the speed rating to go fast ?????.

 

[dronsen]

73m819-

I would like to use the FMTV for commercial purposes. The FMTV was designed virtually identically to any well-built heavy-duty commercial vehicle in the world, and NOT specifically as a military-only vehicle, hence its enhanced level of comfort, reliability and performance. Both S&S and OshKosh have built thousands of production vehicles on the MTV platform with high-speed gears that deliver 72+ MPH so the platform and all components have been well-vetted. I use only Goodyear MVT's with a speed rating at full load capacity of 81 MPH.

But this is a post about 14R20's on an LMTV...

Thanks

 

[scottmandu]

what I can't recall from other threads if the 14R20 or 16R20 bring any advantage when compared to " cost of tire X 5 ". From the one thread did review the otherday the 16R20 (53inch?) by the time you include slow down on grades.. it seemed not worth it.

If you buy the tires right, they aren't that expensive.

 

[DiverDarrell]

It's not always about going faster. For me it's about getting the engine off of the redline at 55. Cruise speed at lower rpm equals more mpg, and longer engine life.

 

[ramdough]

1400R20's fit.. 1600R20's won't clear the front stowage boxes at full lock, and if you have a winch the hydraulic fluid tank guard won't clear either. I think with a 2 inch cab lift 2 inch suspension lift and some trimming it will all work well with 1600R20's.

Do the 1400R20's clear at full compression, turning or straight (without the hydraulic fluid tank)?


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[ramdough]

Does anyone know the answer to this? I have heard many times about trucks that can fit larger tires..... until you drive off road. I just need to know if I am fully flexed out and turning, if that is still true.

Thanks


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[ramdough]

Can anyone answer my last question, and if snow chains would fit?

Thanks in advance.


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[Suprman]

The 1400s will fit and clear. I dont know about with chains on them. The stock tires will work with the proper size chains.

 

[ramdough]

Do you know the distance from axle to axle in the back? That might help with a rough guess.


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[coachgeo]

Do you know the distance from axle to axle in the back? That might help with a rough guess.


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??? you mean minimum distance from tire to tire on the 6x6 rear set of tires?

 

[ramdough]

Center of hub to center of hub. I can calculate tire diameter.


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[ramdough]

On a 6x6


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[Rebuilder]

A little Googling and I found this... http://fas.org/man/dod-101/sys/land/m1083.htm. Based on these dimensions it's around 54" C-C. That leaves around 8" between tires.