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Thread: Wanting to upgrade to 46 or 52" tires

  1. #1

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    Wanting to upgrade to 46 or 52" tires

    I presently have Michelin Military XL tires; 39" tires on a 16" wheel. I want to go with the same tires but in a 46 or 52 inch size on a 20" wheel.



    Any comments here?



    Some say that size tire is too much weight for my '01 Dually 3500 axles.

  2. #2

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    53's would be too much, but 46s have been done on 1 ton axles plenty of times. In fact, I even have a set of 46" Michelin XLs in great shape that I'd sell if you are interested. PM for more info.

  3. #3

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    GBrock, this thing sounds huge! Were are the pics?

  4. #4

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    With the power the Cummins puts out I would think about Rockwell axles with tires that big. . I don't think the 1 ton axles will hold up.

  5. #5

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    Petersons 4wheel and Offroad ran 46" Michelins on one of their Project trucks. It was an 02 F350 (maybe 250, but the axles are the same) D60 front, 10. 25" rear with several performance mods done to the PSD as well. The axles handled it well considering the power, tire size and type of 4wheeling being done. I wouldnt hesitate to run 46s on it, and if the axles do start breaking parts, then downgrade to a smaller tire, like 41s, or 43s, or upgrade to Rockwells.

  6. #6

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    Quote Originally Posted by GBrock
    I presently have Michelin Military XL tires; 39" tires on a 16" wheel. I want to go with the same tires but in a 46 or 52 inch size on a 20" wheel.



    Any comments here?



    Some say that size tire is too much weight for my '01 Dually 3500 axles.


    I have over 1000lbft of torque on my manual trans truck and have done a bit of damage to frame,brackets and mounts with 35's no way would I go that big on tires with out being prepared to do a lot of repair work after any playing.



    Bob
    2005 2500 Quad 4x4 48re,Carli dominator 3.0 plus long travel air bags, Baja proven and enough power to make it work
    2015 TRD dcsb 4x4 stock for now

  7. #7

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    The front wheel bearings/ hub are not going to hold up. If you do the dynatrac hub conversion you could get away with it. I just bought the stage I kit, but they have not arrived yet.

  8. #8

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    Unless I'm mistaken, Michelin military XLs are only rated for a top speed of 55 or 60 mph. Most military vehicles are governed to 55 mph or used to be.
    CyberRanger -- cyberranger@gmail.com
    "Big Blue" 2002 2500 SLT 4x4 QC LWB HO 5.9, 6 Spd

  9. #9

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    Quote Originally Posted by CyberRanger
    Unless I'm mistaken, Michelin military XLs are only rated for a top speed of 55 or 60 mph. Most military vehicles are governed to 55 mph or used to be.
    use to be is the word except for the gearing in the cutvee chevy 6. 2 with 456 gears n 235/16 tires thats the max u wanna run that truck is 55 I've never seen a govner on any of the late style trucks or 151 jeeps .
    running since Feb 2013 1985 dodge crewcab longbed 4x4 cummin's conversion
    R I P Speedy the bug 5-17-2010, sold 2008 2500 n 2011 3500
    new as of 5-11-2012 a 2012 jetta sport wagen TDI Wifes Ride
    2014 Jeep Grand Cherokee 3.0 Diesel replaced the Crashed Durango

  10. #10

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    The speed rating is in place for the tires when loaded to max. capacity. Without much weight on the tires, virtually no heat is generated and the tire can be run at a higher speed with much less risk for a blowout. However, at these much higher speeds, tire wear increases exponentially, regardless of weight. I dont know the exact formula, but have talked with Michelin engineers, who have told me that the tire wear/weight/speed ratios are fairly complex. But with Michelin surplus prices being what they are, you could run at a higher speed, and wear out a good number of tires, while still not spending too much money.



    I ran 41" Michelin XZLs on a 94 F350 for almost 2 years, putting 20k on these tires, most of which was highway driving at 65 mph. The tires wore VERY well, and rode excellent compared to the garbage Swamper TSLs I had before.

  11. #11

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    Where did you get the 41" XZL's at? All I've found in that size range has been the XL pattern. . .



    Chris
    Black 2001.5 2500 qc sb 4x4 - towrig
    Maroon 1996 2500 xc lb 4x4 - 2.8 street puller - ADP pump, ADP injectors, ADP turbo, SBC Iron Giant
    Red 1993 W250 - 913 pump, EDM's, H2E, built auto

    Power by J.R. Adkins - 317-281-3130
    Put to the ground by SBC - 800-988-4345

  12. #12

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    New through Michelin. I know a guy who can get them at manufacturers cost to me, so that really helps on the price. If I didnt have that deal, Id be running surplus XLs.

  13. #13

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    Quote Originally Posted by DieselNasty
    GBrock, this thing sounds huge! Were are the pics?
    Yeah, lets see some pic's.

  14. #14

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    Quote Originally Posted by FordCummins
    Petersons 4wheel and Offroad ran 46" Michelins on one of their Project trucks. It was an 02 F350 (maybe 250, but the axles are the same) D60 front, 10. 25" rear with several performance mods done to the PSD as well. The axles handled it well considering the power, tire size and type of 4wheeling being done. I wouldnt hesitate to run 46s on it, and if the axles do start breaking parts, then downgrade to a smaller tire, like 41s, or 43s, or upgrade to Rockwells.


    I thought they kept breaking stub shafts on the front 60?

  15. #15

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    A buddy of mine was running 52's on a '96 2500 show truck he built. I think he put @80K miles on it with them. Like I said, it was a show truck, I don't know that he had it off-road much, but he was running a 10" lift kit and a 3" body lift. He's dropping back to 45's, I think, removing the 10" lift, and going with a 7" lift to turn it into a daily driver.



    Scott
    Scott

    Mid-Tenn TDR - RIP
    TOTALLED OUT 1995 2500 RC 2wd 5-speed
    FINALLY DRIVING BUT NOT FINISHED 1998.5 QCSB Auto with the '95 12V, Goerend tranny, #10 plate, DD3's, 181's, HE351CW, 60# springs, AutoMeter guages, tabbed KDP, MPRP Exhaust

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