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15" 8 lugs on 3/4 or 1 ton

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by TopOff, Jan 16, 2002.

  1. TopOff

    TopOff 1/2 ton status

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    15\" 8 lugs on 3/4 or 1 ton

    I'll try it again...

    Will this WORK? ANYONE else running 15" on a Dana 60/44 or Corp 10 bolt?

    Do I just shave the rotors a little?

    I don't like to blow beads, so I understand the 15" rims have a bigger safety bead than the 16.5". I blew a bead on a snow run with 16.5 x 8" rims. I thought the 8" rims would help.
    I am looking to get some 36 x 14.5 tires so my thought are to get some 15" x 10" (maybe 12") 8 lug rims.

    Thoughts, suggestions, questions?

    TIA
    Nick

    '73 Blazer, 383 Howell TBI, 3/4 ton ARB F&R (3.73), 35" BFG AT&MT. TH350/203 looking for a SM465 conversion
     
  2. mudhog

    mudhog THEGAME Staff Member Super Moderator

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    Re: 15\" 8 lugs on 3/4 or 1 ton

    why not go with 16in rims? they clear the dana 60 with no problem

    wheeling pics
     
  3. TopOff

    TopOff 1/2 ton status

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    Re: 15\" 8 lugs on 3/4 or 1 ton

    Less tire choices with 16" rims.... :(

    '73 Blazer, 383 Howell TBI, 3/4 ton ARB F&R (3.73), 35" BFG AT&MT. TH350/203 looking for a SM465 conversion
     
  4. Greg72

    Greg72 "Might As Well..." Staff Member Super Moderator

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    Re: 15\" 8 lugs on 3/4 or 1 ton

    Boy you sure ARE excited to be here.....questions everywhere! [​IMG]

    This is another one of those that's been asked & answered numerous times. You can do a keyword search in the archives but I'll give you the quick answer:

    15" wheels - Lots of grinding, no way around it even with strange offset wheels'

    16" wheels - will be very tight, but may or may not need grinding.

    16.5" wheels - No problems at all.

    The discussion about the safety bead on 16.5" (or lack thereof) has also been discussed. The basic answer is that with the Tire-Loc internal beadlocks (street legal) you can solve the issue completely. It becomes a cost issue only at that point (~$200 per wheel for the Tire-Locs)

    That's what I'll be doing on my K5.....the 15's are too small for the brakes, the 16's may be OK but the amount of tire choices is limited......16.5" has LOTS of choices, and is a perfectly good offroad solution once you resolve the beadlock thing....

    There's LOTS of info here.....you've definitely come to the right place. [​IMG]



    -Greg72

    '72 K5 Blazer - 427BB/TH350/NP205/6" Lift/35x12.50's
    <font color=blue>See it here: </font color=blue><a target="_blank" href=http://coloradok5.com/gallery/albun38>http://coloradok5.com/gallery/albun38</a>
     
  5. Stoopalini

    Stoopalini 1/2 ton status

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    Re: 15\" 8 lugs on 3/4 or 1 ton

    I run 15" rims on my truck. I've got a 14 BFF in the rear, and a 3/4 ton Dana 44 up front. The rear fit with no problem. On the D44, you will ned to grind the calipers and possibly the backing plate/bracket that holds the caliper.

    The rim will fit on the D44 without grinding, but the wheel will not rotate once you tighten the lugs down. I just ground the calipers, and tested. It took about 45 mins per side and 4 grinding wheels on my 4" electric grinder.

    Thomas.

    BTW: If you do a search on this topic, you will find a million (well, maybe not a million, but pretty darn close) posts talking about this issue.......

    -- '84 1-Ton Blazer --
    When the goin' gets tough,
    the tough go 1-Ton [​IMG]
     
  6. mudhog

    mudhog THEGAME Staff Member Super Moderator

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    Re: 15\" 8 lugs on 3/4 or 1 ton

    you are right about that but they are making more and more for 16in rims for this reason

    wheeling pics
     
  7. TopOff

    TopOff 1/2 ton status

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    Re: 15\" 8 lugs on 3/4 or 1 ton

    My apologies for asking the same question already asked before. :(

    Suddenly I am finding the expensive Weld rims in the 16.5 x 9.75 for GREAT prices. I have the 16.5 x 8 chromies with wrong offset. What to do...
    Wish I could find some Welds 16.5 x 12...I keep dreaming!

    '73 Blazer, 383 Howell TBI, 3/4 ton ARB F&R (3.73), 35" BFG AT&MT. TH350/203 looking for a SM465 conversion
     
  8. BadDog

    BadDog SOL Staff Member Super Moderator Author

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    Re: 15\" 8 lugs on 3/4 or 1 ton

    Do a search. This comes up about twice a week.

    Russ

    85 K30 CUCV, 350 TBI, TH400, 205, D60/C14, 4.56 Locked
    Some day: 4" lift, 44" tires, massive cutting, shorter wb and rear overhang.
     
  9. BadDog

    BadDog SOL Staff Member Super Moderator Author

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    Re: 15\" 8 lugs on 3/4 or 1 ton

    LOL, wow, in the time it took me to dig through all the posts (the server is very slow so I open several at a time in different windows and then read through them) several others had already replied. Didn't mean to beat on you again. [​IMG]

    Russ

    85 K30 CUCV, 350 TBI, TH400, 205, D60/C14, 4.56 Locked
    Some day: 4" lift, 44" tires, massive cutting, shorter wb and rear overhang.
     
  10. Greg72

    Greg72 "Might As Well..." Staff Member Super Moderator

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    Re: 15

    You mind sharing that info about the location of "Great Prices On 16.5" Welds?"

    I'm in the market too..... and I'll gladly take a 9.75" width.

    Thanks! [​IMG]


    -Greg72

    '72 K5 Blazer - 427BB/TH350/NP205/6" Lift/35x12.50's
    <font color=blue>See it here: </font color=blue><a target="_blank" href=http://coloradok5.com/gallery/albun38>http://coloradok5.com/gallery/albun38</a>
     
  11. TopOff

    TopOff 1/2 ton status

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    Re: 15

    Someone in the Wheel section has a set for $475.

    The shipping is killing me. Most sellers don't want to ship. I am in Sacramento, ca

    '73 Blazer, 383 Howell TBI, 4" EZ-ride (spring only), 3/4 ton (90 sub') ARB F&R (3.73), 35" BFG AT&MT. TH350/203 hoping for a SM465 conversion
     
  12. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Re: 15\" 8 lugs on 3/4 or 1 ton

    <blockquote><font class="small">In reply to:</font><hr>

    Wish I could find some Welds 16.5 x 12...I keep dreaming!

    <hr></blockquote>
    LMAO!! [​IMG]

    I have a set of them 16.5 x 12 Weld Super Single II wheels in boxes in the storage shed!! [​IMG] They have approx. 10K miles on them.

    Probably getting excited now, huh? Well, sorry to say, but not for sale!! [​IMG]

    Sorry to get you worked up! I just had to brag!! [​IMG]



    <font color=red>Only real men drive K30's!!!</font color=red> [​IMG]

    <a target="_blank" href=http://coloradok5.com/gallery/thatK30guy>The K30 Collection</a>
     
  13. mudhog

    mudhog THEGAME Staff Member Super Moderator

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    Re: 15\" 8 lugs on 3/4 or 1 ton

    damn wes you are mean[​IMG] lol get his hopes up why dont you?

    wheeling pics
     
  14. Blazin Obsession

    Blazin Obsession Registered Member

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    Re: 15\" 8 lugs on 3/4 or 1 ton

    Hey there Topoff
    Don't worry about asking questions that have been asked in the past,,, if all us newbies here just had to scrounge around the old posts,, some of these guys wouldnt have anything to do. And you are always better off with current info than old. After a while you will find that there are a few guys here that realy know there Blazers ( I am just learning ). Anyways I just put a 14 FF rear and 8 lug conversion on my 10 bolt front with 15" rims.
    If you don't have much experience with a grinder you will after this. I actually had to do it twice, after I could slide a piece of cardboard easily between the rim and rotor/backing plate I discovered that the heat sealed the bleeding screws to the caliper and I destroyed them trying to get them out. SOOOOOOOOOO off to the auto store for 2 more.
    The second time I backed off the bleeders first and used a workmate to hold them while grinding. On vehicle grinding was about 2 hours a side, on bench grinding was less than 2 hours total.
    Ken

    <a target="_blank" href=http://www.blazinobsession.com/>http://www.blazinobsession.com/</a>
     
  15. nvrenuf

    nvrenuf NONE shall pass! Premium Member

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    Re: 15\" 8 lugs on 3/4 or 1 ton

    Greg72 is right. I run 15x12" wheels with a 3 1/2" backspace on my truck with a 60 front and a 14 bolt rear and I had to grind ALOT to make the front wheels work. I used to run a Dana 44 front and it took minimal grinding.

    Be sure to get wheels with more offset than standard, I know a guy that TRIED to put a set of 15x10 chrome wagon wheels on a front 60. He had to grind so much off of the calipers that they broke in half the first time he tested the brakes.

    Good luck...


    John
    80 K10 w/ a LOUD 468 / hard hitting 400 / nothing but a 205 / a D60, nuff said / a trusty C14 / riding on 12" and 44,s
    www.nvrenuf.fws1.com
     
  16. Greg72

    Greg72 "Might As Well..." Staff Member Super Moderator

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    Re: 15

    John,

    "....and the caliper broke in half the first time he tried to stop......"

    Is exactly what scares me so much about grinding the calipers at ALL. I know that there is SOME design margin in the caliper, but to me it's not worth the risk for such a critical safety item. I might be willing to grind off some of the casting "flash" but that's about it.

    Scary Stuff..... [​IMG]



    -Greg72

    '72 K5 Blazer - 427BB/TH350/NP205/6" Lift/35x12.50's
    <font color=blue>See it here: </font color=blue><a target="_blank" href=http://coloradok5.com/gallery/albun38>http://coloradok5.com/gallery/albun38</a>
     
  17. wayne

    wayne 3/4 ton status

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    Re: 15\" 8 lugs on 3/4 or 1 ton

    Well I will through my $.02 in. I run 15x10 with 4 1/8 in backspacing on my 1 ton set up. Lots of careful grinding on the caliper. Saying someone broke a caliper in half the first time he hit the brakes probably was his fault. Most likely he ground it down way to far. All that is needed is to just clear the wheel so it spins freely and thats it. Even after I ground mine down the caliper is still beffier then a 1/2 ton caliper. Dana 60 calipers are way overkill for a K5 unless you are tring to stop a 10000 pound trailer behind it.[​IMG]

    See <a target="_blank" href=http://coloradok5.com/gallery/Waynes-Toy>Project Mighty Mouse</a> here.
    <font color=blue>Wayne<font color=blue>
    <font color=blue>Happy Trails<font color=blue>
     
  18. nvrenuf

    nvrenuf NONE shall pass! Premium Member

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    Re: 15

    I agree the caliper breakage is scary, knock on wood this happened in his back yard. It was a long time ago so I don't remember how they looked but I'm sure the biggest factor was that this guy got carried away with his grinding.

    I ground my 60 calipers but it was never anything that made me scared of them (plus I didn't have to do as much because of the bigger offset on my wheels). I guess mine are about 3 years old now, not very many miles though. I'm not saying it's the right way but I'd do it again to avoid having to use 16.5 stuff.


    80 K10 w/ 468 and 1 ton stuff
    I got chunks of guy's like you in my stool!
    www.nvrenuf.fws1.com
     

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