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15 vs 16 vs 16.5 wheels

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by txbartman, Dec 27, 2001.

  1. txbartman

    txbartman 1/2 ton status

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    Okay, I need some help here...

    For my trail rig, I plan to have 14BFF rear and D44 front (until I get the D60 when the 44 breaks). So, I expect I will be running 8-lug wheels.

    I also want to go with 38s or 39.5s. I was planning on Super Swamper TSLs just because of the quality, name, side bite, and cost.

    Here is the dilemma... I have heard that 16.5 wheels are really bad because the bead "retainer" is at 45 degrees, which means you can't air down much with bead locks. A 16" wheel's bead thingy is at 90 degrees as is a 15", so they are much better at holding a bead while aired down without bead locks. But, Super Swamper doesn't seem to make tall tires (with a width of at least 12.5) in 16" wheel sizes. And I can't find ANY 15" 8-lug wheels.

    Can someone help me out here? What's the right setup?

    Brian
    Check out <a target="_blank" href=http://tx85gmcguy.alloffroad.com>My Jimmy</a> with all her projects!
     
  2. muddin4fun

    muddin4fun 3/4 ton status

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    I'm going with 16" wheels. But, I'm not going any wider than 12.50.

    Is it mainly mudding or rock crawling?
    In my opinion (in mud), wide tires are good for light trucks that can float across mud. A blazer isn't gonna float. So a narrower tire would be better so it can dig to solid ground. But, rock crawling you want a bigger foot print.

    You might have to go with 16.5's if the wideness is the most important thing to you. But from what I understand, 16.5's are going to go away and 16's will come in.

    <font color=blue>Answers: $1, Short: $5, Correct: $25, dumb looks are still free.</font color=blue>

    <a target="_blank" href=http://www.bluefox.tv/~lara>My Wonderful Site</a>
     
  3. ChadH82

    ChadH82 1/2 ton status

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    I'm having this same dillema myself right now. It is possible to find a 8-lug 15" wheel but then you are going to have to get a huge offset like 2". Then you will probably still have to grind the calipers. I'm planning on going with 16.5" beadlocks from Rockstomper<a target="_blank" href=http://www.rockstomper.com/catalog/wheels/beadlocks.htm>http://www.rockstomper.com/catalog/wheels/beadlocks.htm</a>. Then I'm going with the 39.5 TSL.



    Chad
     
  4. BLUESMAN

    BLUESMAN 1/2 ton status

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    I'm going with 12.50/35 15" tires on 15x8" rims(8 lug).You can get the wheels thru Summit Racing for $40 each(steel white mods).If you need more help or the part #'s...let me know.And the offset is 3 3/4".I'll be grinding the frt. brake calipers soon.
     
  5. txbartman

    txbartman 1/2 ton status

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    Do you have to grind the calipers on a D44 for 15s? Or is it only a problem on the D60s? What about the 14BFF?

    Brian
    Check out <a target="_blank" href=http://tx85gmcguy.alloffroad.com>My Jimmy</a> with all her projects!
     
  6. Chris Demartini

    Chris Demartini 1/2 ton status

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    <font color=blue>I run 15x10 American Racing white wagon wheels with 4 1/8" backspacing on an 8 lug d44. My dad runs the same rims on his d60. Summit has <a target="_blank" href=http://store.summitracing.com/product.asp?d=17&amp;s=288&amp;p=231&amp;SearchType=ECat>Clement Wheels</a> in 15" 8 lug for about $60. Wheel Vintiques, Stockton Wheel, and US Wheel also make them. It's not hard to find 15" 8 lug wheels. Toybox Off Road had a sale on them a while back, I'm not sure if they still do. They fit over all 14ffs, regardless of drum or disk size. The only clearance issue is the front calipers and caliper mounting brackets. An hour or two with a 4" angle grinder and some fresh disks will take care of this. How much grinding depends on the backspace. The less backspace (distance from mounting surface to inner bead), the less grinding, but this increases the leverage on the wheel bearings and ball joints, and also decreases turning radius.
     
  7. grumpy

    grumpy 1/2 ton status

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    Super Swamper SSRs come in a 37X12.5X16
     
  8. MaxCrack

    MaxCrack 1/2 ton status

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    15 inchers need less backspacing to fit on d60 fronts. I don't know about 14ff.

    16 and 16.5 don't need nearly as much if any backspacing. 16.5 do not have a safety bead. 16 do have the safety bead but do not have as much choice for tires. But they are making more and more for the 16 inchers.

    I got 16 x 10 rockcrawlers and the 37" SSR's. At the rate I'm going, getting this damn thing together, they will have plenty of choices for me when I need new tires. heheh. And I don't think I will need to go any wider unless I get some 18"+ wide tires.

    A computer once beat me at chess, but it was no match for me at kick boxing.
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  9. grumpy

    grumpy 1/2 ton status

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    What back space are you running with the 16X10s? I just picked up a set of 37 SSRs but have not decided on wheels.
    David
     
  10. 55Willy

    55Willy 3/4 ton status

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    You can get 38 x 13 x 16's too
    I was going to run those, but desided to opt for 15's and just grind the calipers.

    <font color=red>Life is like a mud hole:</font color=red><font color=blue>
    When the S#!T gets deep, you have to keep moving and friends can always pull you out</font color=blue>
    55 Willy's
     
  11. Chaz88K5

    Chaz88K5 1/2 ton status

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    i am runnin stockton wheel bead locks in 15" with 3 1/4 back spacing....i had to do a little grinding but not enough to complain about....

    <font color=green>Chaz</font color=green>

    [​IMG]<a target="_blank" href=http://community.webshots.com/user/chaz88k5>http://community.webshots.com/user/chaz88k5</a>[​IMG]
     
  12. 55Willy

    55Willy 3/4 ton status

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    Any pictures of the work needed to get them to fit?

    <font color=red>Life is like a mud hole:</font color=red><font color=blue>
    When the S#!T gets deep, you have to keep moving and friends can always pull you out</font color=blue>
    55 Willy's
     
  13. Chris Demartini

    Chris Demartini 1/2 ton status

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    <font color=blue>I have a picture of a d60 caliper ground for a 15x10 wheel with 4 1/8" backspace if you want it
     
  14. 55Willy

    55Willy 3/4 ton status

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    I'm looking for a pic of a 10 bolt or 44. I'v seen the 60.

    <font color=red>Life is like a mud hole:</font color=red><font color=blue>
    When the S#!T gets deep, you have to keep moving and friends can always pull you out</font color=blue>
    55 Willy's
     
  15. jaybird

    jaybird Registered Member

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    Brain,
    I'm running 15's on my Jimmy. The wheels are American Racing 15x10 wagon wheels. I also have access to custom US wheels (back spacing...etc) that I wil use when I get my D60. Give me a call, I'll help ya out.

    Jay VT
    79 Jimmy 454, 700R4, NP208, D44, 14 bolt, 4.56:1, 38's
     
  16. SKI-'84K5

    SKI-'84K5 1/2 ton status

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    two things, first why not try some 17 inch rims, get your hands on some military beadlocks and don't worry about losing a bead period, second, if nothing works for you, you can give me the bothersome parts and and I will let you have my 10 bolts, no no thats ok, I will bite the bullet on this one if it makes you happy
     
  17. Chaz88K5

    Chaz88K5 1/2 ton status

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    i dont have any pics yet...my digital camera died...i think it just needs a new battery but i have been a cheep ass lately so ill see if i can borrow someones camera at work. [​IMG]

    <font color=green>Chaz</font color=green>

    [​IMG]<a target="_blank" href=http://community.webshots.com/user/chaz88k5>http://community.webshots.com/user/chaz88k5</a>[​IMG]
     
  18. CaptCrunch

    CaptCrunch 1/2 ton status

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    Jeremy.... pm wakedog (Matt) We just got done grinding up his D44 for 15" wheels. He should be able to get you some pics.

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
    <a target="_blank" href=http://coloradok5.com/gallery/captcrunch>http://coloradok5.com/gallery/captcrunch</a>
     
  19. POFF

    POFF 1/2 ton status

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    I have 16.5s. If I ever buy new wheels I'll go 16". 16.5 isn't going away for a long time. There are alot of people out there with 16.5s but 16" tires are becoming more and more available. 16.5s have a smaller inside lip for the bead. I air down to about 20psi in the front and 15psi in the rear and haven't lost a bead. I have pretty soft tires and have no problems with rocks, a little less air might help traction though. 16" fit 14 bolts and D60s no problem. harry just bought 16" Rock-Crawlers and they are very nice, much beefier than I thought they would be. They fit his D60 fine.

    Never said I could spell!
    '70 K-20 San Diego, CA
     
  20. Ddragggon

    Ddragggon 1/2 ton status

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    I was told the problem wiht 15 inch rims wasn;t really the front calipers, so much as the rear drums. if you;re going to a rear disc setup, then you might be able to fit 15's... the 15's just won't clear the drums... who knows...

    -Rich

    My truck isn't ugly, you have a skewed sense of beauty

    <font color=blue>2007 Ford XLS++ intrepid Ram Superduty 7000 R-type's suck</font color=blue>
     

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