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40 in. goodyear mtr

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by nmud2deep, Aug 30, 2005.

  1. nmud2deep

    nmud2deep Registered Member

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    i am sure you guys have heard of this size....has anyone used these and what kinda tread life do they have?i have a set of 37inch mrts on my truck now....also do you think i could fit them with a 4inch sus. and a 3 inch body lift?i have already trimed the fenders at the bottom <IMG SRC=http://www.streetsourcemag.com/uploads/Ownerprofiles/Nmud2Deep/513200543326PM97201.jpg>
     
  2. az-k5

    az-k5 1/2 ton status

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    I run them with just a 4" lift and some slight cutting. I think they are a little softer than my old 37's so wear slightly faster.
     
  3. nmud2deep

    nmud2deep Registered Member

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    they fit with just alil cutting?lol honestly i cut the lower front and rear of my front finders about 2 1/2 inches when i has running a 33s with no lift and since then i have put on a 4 inch sus. and a 3 inch body... check out this link and tell me if you think it is logical...i dont do much off roading because i dont have the time...i do sometimes get in the mud at the lake shore fishing and when my lil bro gets stuck in his zr2...tell me if you think it will scrub when i turn normal...

    http://streetsource.com/viewownerprofile.aspx?profileid=14832
     
  4. Hossbaby50

    Hossbaby50 3/4 ton status

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    Matt's idea of "slight cutting" is a little different then most peoples.

    [​IMG]

    With a 4" suspension lift and 3" body lift you should be ok with some cutting and thought. 40" MTR's are for 17" rims so when you buy new rims make sure they have less (smaller numerically) backspacing so they rims stick out farther.

    I know that Matt rubs his front springs with his 40's and standard backspace wheels.

    Harley
     
  5. nmud2deep

    nmud2deep Registered Member

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    what back spacing do you think i should have with my dana 44 front and a 14ff rear end
     
  6. az-k5

    az-k5 1/2 ton status

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    I would go with a 17x9 or 17x8 with 3.5" of backspacing. I have a narrower dodge D60 axle so I get to rub everything. I tag the springs, fenderwells, and even my shocks.
     
  7. nmud2deep

    nmud2deep Registered Member

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    i shouldnt go for a 17x10 or17x12 to make the tires look wider? with a 4inch back spacing?
     
  8. Jishory

    Jishory 1/2 ton status

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    arent those tires like 450$ a pop? :eek1:
     
  9. Hossbaby50

    Hossbaby50 3/4 ton status

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    Yes they are about $400 each. Matt works at Discount Tire though so he got the hookups threw work.

    Harley
     
  10. Muddytazz

    Muddytazz 1 ton status

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    The Wal-mart here has them for $360 each
     
  11. dremu

    dremu Officious Thread Derailer Premium Member

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    I personally am scared of a Dana 44 with 40" tires.

    I'm convinced I'm gonna shatter my 10-bolt axleshafts with my 35"s ... but then the front end is locked and I'm more into rock than mud.

    But it's still on the far end of a D44's strength.

    -- A
     
  12. Hossbaby50

    Hossbaby50 3/4 ton status

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    I ran a 10 bolt front with 35's in the rocks for 1.5yrs and didn't break an axle. I did wallow out the ears of 1 stub shaft. I was locked with crossover and some power and gears. My truck isn't light either. It is about being smart with the right foot.

    I have 37's now and I am interested to see how it does with them. It will be a little while till I get to test it but we will see how it works.

    Harley
     
  13. dremu

    dremu Officious Thread Derailer Premium Member

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    I am hoping that my fear of breakage will motivate the skinny pedal to be ... gentle. :haha:

    I am also looking forward to crossover giving me a little more control ... but damn, conventional wisdom says 37"s on a 10-bolt is suicide.

    You do high-zoot shafts or anything, or stock shafts and joints?

    -- A
     
  14. az-k5

    az-k5 1/2 ton status

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    That is not a bad retail price at all. We will price match too (Discount tire/Americas tire).
     
  15. Hossbaby50

    Hossbaby50 3/4 ton status

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    I run stock shafts and Spicer 760x ujoints. One of the reason's I run a 10 bolt front is because people say I shouldn't. If I start to break lots of parts in my 10 bolt with 37's (which I doubt) I will just get some chromo's and CTM's and call it good.

    I know that I will eventually break some axleshafts with my 10 bolt but I don't really care. They aren't expensive and I have a bunch of spares.

    I am a person who likes to be different and I am going to resist getting a D60 unless i am absolutely shattering 10 bolt parts every trip out. My current rig will probably never see anything larger then 37's unless Matt decides to hand me down his 40" MTR's like he did his 37's. :D :haha:

    Harley
     
  16. nmud2deep

    nmud2deep Registered Member

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  17. az-k5

    az-k5 1/2 ton status

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    Shortly after my rig hits a trailer I will go for something with sidewalls and no mileage. I am waiting for the 39" creepy crawlers to come out. I have put a set of 37's and 38's on some friends truggy's and am very pleased with them. (sidewall strength, tread design, grip, stability, street driving <- too soft for a DD though)
     

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