What size slick will fit!?

Discussion in 'G-Body Racing' started by jking78, Jun 8, 2012.

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  1. jking78

    jking78 Master Mechanic

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    Looking forward to purchase a set of etc drag radials for my 78 Malibu. I still wants to use my rally rims the tires size I have now are 245 60 15 in the back & 235 60 15 in the front.
     
  2. Kwik_Cutty88

    Kwik_Cutty88 Moderator
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    A 275/60/15 might work with little modification.
     
  3. jking78

    jking78 Master Mechanic

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    What is that equivalent to. I like the Mickey Thompson et street radial
     
  4. Kwik_Cutty88

    Kwik_Cutty88 Moderator
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    I think it's a little bit over a 10.5" tire.
     
  5. jking78

    jking78 Master Mechanic

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    26*9.5 should work
     
  6. 565bbchevy

    565bbchevy Comic Book Super Hero

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    Mickey Thompson ET drag radials are listed by standard tire sizes.
    275/60/15 = 28 x 11.5 #3754R rims 7.5 -9.5"
    255/60/15 = 27 x 10.5 #3756R rims 7-9"
    235/60/15 = 26 x 9.5 #3752R rims 6.5-8.5"
    I would assume a stock 15" Ralley would probably be only 7" wide which
    would really limit your choices for rear tires.
    I would say 255/60 is probably max. for that rim.
     
  7. jking78

    jking78 Master Mechanic

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    I don't know my rim width. I just want to put those slicks on my rims I have now. How can I find out the width of my rims
     
  8. Blue86Monte

    Blue86Monte Master Mechanic

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    I ran 26x10.5 ET streets on the 15 inch vette rallys, fit without a problem...
     
  9. MPac

    MPac Greasemonkey

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    Width will be a tricky issue with G bodies. A good rule of thumb to go by is the smaller the sidewall I.E. bigger rim or smaller height the wider rubber you can go since there is less bulge. My 83 cutty drag car has 30x9.5x15s on the back and width wise it's fine. If I go with a 28 inch I could probably sqweeze a 10.5 up under it.
     
  10. GhettoRacingKid

    GhettoRacingKid G-Body Guru

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    Im running a 28x10.5 MT ET drag on my 79 monte with a 15x8 weld prostar. I rolled the lip and I have just enough room between the frame and tire and the wheel well and tire. I was able to lower the rear 2 inches also.

    here are some pics.

    [​IMG]

    [​IMG]

    you can measure the rim width by using a straight edge and a ruler upagainst the rim.
     
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