Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

Will 33" tires fit stock height Blazer ?

Discussion in '1973-1991 K5 | Suburban | Truck' started by Code3K5, Apr 20, 2010.

  1. Code3K5

    Code3K5 Registered Member

    Joined:
    Oct 9, 2009
    Messages:
    96
    Likes Received:
    0
    Location:
    Torrance, Ca
    I currently have 32" tires on her now. The wife is short and doesn't want it lifted but I found an 18" wheel and tire combo I like and they are 18x33". Currently 32x11.50x15. New size is 33x12.50x18. Think they will fit ?

    2010-01-01 09 20 00.jpg

    33k5.jpg
     
  2. little_t12515

    little_t12515 Registered Member

    Joined:
    Mar 4, 2009
    Messages:
    5
    Likes Received:
    0
    Location:
    Oklahoma panhandle
    I had 33x12.5's on my old blazer on stock rims and didn't have a big rubbing issue except when completely flexed on the stock suspension and then it was only a little. So as long as the springs are good and you don't flex it real hard, you should be good!
     
  3. dhcomp

    dhcomp 3/4 ton status Premium Member

    Joined:
    Mar 17, 2001
    Messages:
    9,620
    Likes Received:
    63
    Location:
    Truckee, CA
    No. I have 33x12.50s (same size), on my 3/4 ton burb. I have zero rate add a leaf's front/rear, and rub in the front, even with the fender corners pounded out of the way.

    Not bad, but they will rub in/out of driveways, etc. The width is really the killer, as they rub when you turn.

    So basically, plan to get Zero Rate's, trim or bend the front fender corners, and you'll be fine.

    Pics of this tire size/wheel size can be seen at :
    http://coloradok5.com/forums/showthread.php?t=260975

    My wheels are 16.5x10's. How wide are those 18's? If they are only 8" that will help your cause a little, but not much.
     
  4. 1bgsub

    1bgsub Registered Member

    Joined:
    Sep 21, 2007
    Messages:
    50
    Likes Received:
    0
    Location:
    so.texas
    Yes with some minor trimming.

    later
    Trey
     
  5. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

    Joined:
    Jul 23, 2000
    Messages:
    35,095
    Likes Received:
    145
    Location:
    E-town baby!
    Rim width and backspacing make all the difference. On stock rims 33's will be close, but generally don't hit unless the sway bar is removed. On anything wider, or with less backspacing they'll hit the sheetmetal for sure. You could move the front diff forward an inch, that does help a lot.

    Personally I think 18's look dumb on a K5...and it seems like everyone and their dog has similar rims, which makes me like them even less.

    Rene
     
  6. 496truck

    496truck 1/2 ton status

    Joined:
    Jul 22, 2009
    Messages:
    4,478
    Likes Received:
    2
    Location:
    Carver MA
    You never really know till you try, it seems each vehicle is different especially after years of use.

    I put 33 12.5 15s on my stock alloy wheels without issue, they only rubbed the drag link when turned all the way to the right.
    I then put those same tires on some 15x8 steel wheels with 3.75" backspace and I haven't had any rub yet.

    After looking at that pic it looks like those wheels are made for the newer IFS trucks. You should check the backspacing on those to be sure...
     
  7. Thunder

    Thunder 3/4 ton status

    Joined:
    Jul 20, 2000
    Messages:
    8,946
    Likes Received:
    0
    Location:
    Northeast Nevada
    X2 !
    Sorry. But I have to say this because you have a really nice truck.
    Why do you want to ruin the totally clean looks of your K5? It looks great on your wheels.
    IMO Those 18" wheels look like ugly poser rice boy wheels.
    Besides as said above. Looks like they are made for IFS truck. With that much positive offset they will rub.

    You would be better off putting a set of 33"x 12.50 x 15. on the wheels you have. From the pic they look like 8" wheels. 33s will usually fit with out rubbing bad. At full flex they may rub on the rear bottom corner of the fender. That can easily be trimmed off and cant bee seen.
     
  8. Code3K5

    Code3K5 Registered Member

    Joined:
    Oct 9, 2009
    Messages:
    96
    Likes Received:
    0
    Location:
    Torrance, Ca
    My dogs travels in an H1 Hummer, stock CTIS wheels. :haha:
     
  9. 496truck

    496truck 1/2 ton status

    Joined:
    Jul 22, 2009
    Messages:
    4,478
    Likes Received:
    2
    Location:
    Carver MA
    I stand corrected, with no sway bar my 33s rubbed the back of the fenders. Time to trim...
     

Share This Page