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16.5 rim ?s

Discussion in 'The Garage' started by big dan, Feb 5, 2006.

  1. big dan

    big dan 1/2 ton status Premium Member

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    Ive decided to swap in my 3/4 ton axles soon and i need new tires. i was originally planing on 35s with rims from summit but i kinda like the idea of 37s but can only get them in a 16.5inch rims size. that would work out because i already have the stock rims but im worried about popping a bead. what is the lowest air pressure i could safely run and are there any ways to keep from popping a bead without beadlocks? thanks
     
  2. darkshadow

    darkshadow 1 ton status

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    DONT air down lol.

    if you use the search you can find a ton of chatter on this.


    with out beadlocks a cheap way to mod your rim is to weld 1/8th rod around the bead seat, this would make it harder to slip the bead off.

    I would also sugest readding up on the hummer tires it sounds like you are planing on, make sure they will work for you, they seem to have a lot of draw backs.
     
  3. sweetk30

    sweetk30 professional hooker Premium Member

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    i ran 38x12.50x16.5 swampers on 10" wide rims with my old truck . it was 6500 lbs + in weight. i never had a problem at 25 psi in any type of driving.

    and lots of choices in 15" and 17" rims and tires. with 15" just need to grind a little bit on frt calipers nothing to bad.
     
  4. big dan

    big dan 1/2 ton status Premium Member

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    thanks for the replies. i have been searching and have found a lot of informadtion but I still dont know what i should do. im thinking i will probably end up just buying new wheels and 35s. oh and the tires i am looking at are actually from high-tec retreading.
     
  5. big dan

    big dan 1/2 ton status Premium Member

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    i just read that factory chevy 16.5 rims, which is what i have, have a safety bead. does anyone know if this is true?
     
  6. sweetk30

    sweetk30 professional hooker Premium Member

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    ahh dont think so. if you have the tire off look for a little lip around the bead area about 1/4 to 1/2 " in from the outer edge.
     
  7. MTMike

    MTMike 1/2 ton status

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    I've aired down to ~10psi w/ my 16.5's for a snowbogging trip. It wasn't that much of a concern becuase we had ratchet straps and air if I did like I thought we would. I never did blow a bead though, I was suprised.

    Either get steelies and weld in a beadlock, get hummer rims and re-center them, plan on running 20psi+ all the time, or don't get 16.5's.

    That being said, I just picked up some Hummer beadlocks so I have some 16.5x12 Aluminum rims for sale :D

    Mike
     
  8. jekquistk5

    jekquistk5 Weld nekid Premium Member GMOTM Winner

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    Any vendors that make a decent cheap weld on bead lock??? I have 3 free 38.5 that are on 16.5s so I planned on just getting two new for the rear running the steelies.
     
  9. big dan

    big dan 1/2 ton status Premium Member

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    ok, Ive finally got 3/4 ton axles and I think im going to use the stock 16.5x6.75 wheels with 35x12.50s. I know that there are several people here that have a similar setup. everyone keeps telling me that it will cause the center to wear out faster then normal and everything I find on here goes both ways. can anybody tell me for sure and how much faster it will wear out then normal?
    thanks
     
  10. big dan

    big dan 1/2 ton status Premium Member

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    can anybody please help me?
    I want to order tires this weekend and it would be cool if I knew this.
    if nobody can tell me then I will just try it but I'd kinda like to know if anyone could please help me.
    thanks
     
  11. Bushido

    Bushido Registered Member

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    I'm running 35x12.5s and 33x12.5s on 16.5x9.75 rims on two different trucks and never had a problem.I've aired down to 20psi with no problems,in the sand though.---The fact that I just said that is a sure reason to blow all four off the bead this weekend with my luck.:rolleyes: I'm sure the contact patch will be affected if run on 6.75 rims but since you got the rims allready,why not try?
     
  12. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

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    I make weld on beadlocks and cheap is a relative term.

    I will also be finishing up a write up on how to do the rod inside the rim in the next few days that makes these 16.5 wheels much more wheelable.
     
  13. tarussell

    tarussell 1/2 ton status

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    Bad idea to put that wide of a tire on that skinny of a rim with a 45* bead. Just because it will mount up does not make it a good idea . You might want to look at another option.

    Tom
     

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