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"How to Clear 33's"

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 77K5Blazer, Apr 1, 2001.

  1. 77K5Blazer

    77K5Blazer 1/2 ton status

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    \"How to Clear 33\'s\"

    Alright, the 31's that came on my k5 are getting pretty worn down, and I got some tax money coming back that I want to put to good use! So...before summer hits, I want to purchase 33" BFG All-terrains on 15x8 Eagle 589's. I have no lift, but there is an add-a-leaf in the rear that was added for the sagging rear end. I would love to slap on the 33's without any lift or rub, but, is there any way to get a 2 inch suspension lift without changing leaves and preferably no blocks? Or, will the 33's clear without any problems of rubbing. As for the backspacing, does anyone know a good combo, or should I just have the local tire shop help me with that? Thanks for any info, is anyone running 33's w/o lift?


    1977 Blazer w/ 350 GM crate motor
    44 front/ 12-bolt rear, gear driven NP205
    31x10.50r15 BFG All-terrain- Larger on the way!
     
  2. bandit

    bandit 1/2 ton status

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    Re: \"How to Clear 33\'s\"

    this is very hard to i did it once but had to take and hack the he!! out of my front fenders so i what i did after the cuting i bought some 2 inch add a leafs a 2 blocks for the rear works and look great but it work find befor with out the lift just rubbed on hard articulation

    Bandit
    (Your right i dont understand the jeepthing)
     
  3. Wheels

    Wheels 1/2 ton status

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    Re: \"How to Clear 33\'s\"

    The 33's are right at the edge of the hit or miss envelope. With the correct backspacing and maybe the 33x9.50 on 8" rims you probably won't have a problem at all. the 33x12.50 will hit especially on 8" rims (center of the tread will balloon out and actually make them a tad taller.
     
  4. POWERMAD

    POWERMAD 1/2 ton status

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    Re: \"How to Clear 33\'s\"

    Hey all
    I just put a set of 33x12.5 EXT's, mounted on a set of 15x8 Rally wheels.
    I thought Wold have to do a little trimming at first, But it's all good.
    [​IMG]
    9 leaf rear spring pac and 3 leaf pac in the front.

    See ya

    my truck's not dirty, it's earth tone paint
     
  5. wayne

    wayne 3/4 ton status

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    Re: \"How to Clear 33\'s\"

    http://jamonline.homestead.com/fromthegroundupK54x4/89Jimmy.html
    <font color=blue>Happy Trails[​IMG]</font color=blue>
    <font color=blue>Wayne</font color=blue>
     
  6. POWERMAD

    POWERMAD 1/2 ton status

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    Re: \"How to Clear 33\'s\" *DELETED*

    Post deleted by POWERMAD
     
  7. bennett

    bennett Registered Member

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    Re: "How to Clear 33\'s"

    Just put 33s on my 90 Jimmy and no problems. They are close but it doesn't see any real hard off road , I would probably go 2" lift if it were me.
     
  8. 77K5Blazer

    77K5Blazer 1/2 ton status

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    Re: \"How to Clear 33\'s\"

    Next question. Where can I buy a two inch lift? I wouldn't mind blocks in the rear. Correct me if I am wrong, but I wouldn't need to extend the drivelines or anything else, right? I have the flat front springs, so how do you add a spring to them? I really want 33's, but if a 2 inch lift is not all that feasable, then I will live with 32's.

    1977 Blazer w/ 350 GM crate motor
    44 front/ 12-bolt rear, gear driven NP205
    31x10.50r15 BFG All-terrain- Larger on the way!
     
  9. bandit

    bandit 1/2 ton status

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    Re: "How to Clear 33\'s"

    you can get 2 inch lifts from anywhere i think a set of added leafs for front is about 60 bucks a set a set of add a leafs for teh rear is about 40 blocks are like 20 are you can get all new front springs and for about 250

    Bandit
    (Your right i dont understand the jeepthing)
     
  10. Espen88k5

    Espen88k5 1/2 ton status

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    Re: "How to Clear 33\'s"

    Some people hate them and they can be a royal pain in the butt to install but there is always the bodylift. I did a 3" that I
    have shown how to do on my CK5-page, link below:

    3" lift looks sweeeeet with 33 12,5 and a bodylift is cheap.

    <A target="_blank" HREF=http://www.espen88k5.coloradok5.com>http://www.espen88k5.coloradok5.com</A>
     
  11. dyeager535

    dyeager535 1 ton status Premium Member

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    Re: \"How to Clear 33\'s\"

    Get the BFG AT's in 33x10.5, or if you have to have MT's, get the 9.5's. No lift needed with stock wheels. Once you start dealing with aftermarket wheels, you would have to make sure that the offset of the rim and such is the same as factory ones.

    I have the 33x10.5's on factory ralleys, and they are nowhere near rubbing. Its the width thats the prob, not the height, since you'd have to stuff the hub into the wheelwell before the max. diameter of the tire was a factor, at least with 33's. Doesn't sound like you are going to be having that much travel.

    BFG told me they are coming out with new MT tires in August, they couldn't guarantee what tire sizes they were going to be making, but I would suggest e-mailing them and telling them what you want. I really wanted 33x10.5's in MT's, and I let them know. http://www.dorianyeager.com/index2.html
     
  12. Hathaway

    Hathaway 1/2 ton status

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    Re: \"How to Clear 33\'s\"

    Anyone out there tried Swamper Thornbirds in 33x11.00R15's? I saw some 33x12.50 Tbirds on a newer Chevy pickup this weekend and DAMN are they cool. I want 33's anyway and the Tbirds would make my ride look nasty [​IMG]

    Dan, '86 K5, 5.0L v8, NP208, TH700R4, open 10bolts front and rear, 3.43gearing, K&N filter, 31x10.50R15 Trailhandlers
     
  13. crazylarry74

    crazylarry74 Registered Member

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    Re: \"How to Clear 33\'s\"

    You can always go with the 2.5" shackle reversals by off-road design. My friend has the 4" reversals and it rides really nice on and off road. They were somewhat of a challenge to put on just because the original bolts going through the shackle and leaves were stuck but it is well worth buying and they are only $175 for either the 2" or 4" lifts.
    CrazyLarry
     
  14. 77K5Blazer

    77K5Blazer 1/2 ton status

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    Re: \"How to Clear 33\'s\"

    I would really like to go 343x12.5! But, if that did not clear, does BFG make a 33x11.5? In the A/T form? I want to go to aftermarket rims, amd I wouldn't mind 33x11.5's, but I do want more than 10.5's! I want it for increased looks, and as soon as I get my license this summer, she will see the hills way more often!

    1977 Blazer w/ 350 GM crate motor
    44 front/ 12-bolt rear, gear driven NP205
    31x10.50r15 BFG All-terrain- Larger on the way!
     
  15. 77K5Blazer

    77K5Blazer 1/2 ton status

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    Re: \"How to Clear 33\'s\"

    Do you know if they will be producing a 33x11.5 AT? Or, would a 10.5 be desirable?

    1977 Blazer w/ 350 GM crate motor
    44 front/ 12-bolt rear, gear driven NP205
    31x10.50r15 BFG All-terrain- Larger on the way!
     
  16. MudFrog

    MudFrog 1/2 ton status

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    Re: \"How to Clear 33\'s\"

    Put your 33x12.50's on a 15x8" wheel and get the ORD 1" add a leaves. It might not rub too badly. You could also get the HD shackles that will raise your front another 3/4" to an 1" depending on the brand you get. With these 2 combined you probably wouldn't rub.

    89 K5 Silverado
    <A target="_blank" HREF=http://mudfrog.coloradok5.com>http://mudfrog.coloradok5.com</A>
     
  17. GONZO

    GONZO Registered Member

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    Re: \"How to Clear 33\'s\"

    just from my experience with my two k-5's, it is going to depend on how much your truck is sagging now, as to how much lift if any you will need to clear 33x12.5 tires.
    when i got my 85 blazer the 1st thing i wanted to do was throw 33's on it. took it down to local tire place and test fitted some 33x12.5's on the stock rally wheels. no go without alot of fender trimming. so i ended up buying 32x11.5's and mounted on the stock wheels.

    next case my wife's 88 blazer
    when parked next to my 85 it looked fairly high even sitting on the stock 235/75's. so i took some measurements and sure enough hers sits a little higher than mine. enough so that 33x12.5's fit on her blazer with no lift. a little trimming of the running boards was needed though. without running boards they would fit perfectly. we took her blazer for a little trip into the mountains this weekend with some light 4 wheelin and there was no rubbing at all.
    my suggestion for you would be to go down to a local shop and try the tire size that you want. they should test fit one tire in the front (the rear is not the problem) then lower it down to see how it rubs (if it does). if you buy your tires from them they should not charge you to test fit one.

    <font color=blue>85 k5 Blazer 4x4
    99 Trans am 30th anniversary
    79 Trans am [​IMG]
     
  18. mudhog

    mudhog THEGAME Staff Member Super Moderator

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    Re: \"How to Clear 33\'s\"

    i have stock suspension on mine and i run 33x12.5x16 and i only rub when i flex hard and turn at the same time. i have pics of me flexin in the link below

    77blazer see it at<A target="_blank" HREF=http://community.webshots.com/user/ssmith6333>http://community.webshots.com/user/ssmith6333</A>[​IMG]
     
  19. dyeager535

    dyeager535 1 ton status Premium Member

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    Re: \"How to Clear 33\'s\"

    To tell you the truth, you won't be able to tell between an 11.5 and 10.5 wide tire in looks. In performance, the narrower tire will do better in mud, water and snow, up to the depth where the tire can no longer reach solid ground. I'm pretty sure BFG doesn't make 33x11.5's. I just wish they had 10.5's in more aggressive tread patterns...they might, I can hope.

    Dorian
    My K5 and Chev/Olds tech/links page: <A target="_blank" HREF=http://www.dorianyeager.com/index2.html>http://www.dorianyeager.com/index2.html</A>
     

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