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Thread: Widest Tire on 8" Rim - 1980 Dodge D150

  1. #1
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    Widest Tire on 8" Rim - 1980 Dodge D150

    I am putting some 17" diameter, 8" wide, 4.5" backspacing wheels on my 1980 D150 and I can't decide on the rear tires. I'm thinking 275/60/17 will be a little too wide after measuring with my SS/T's wheel and tire. I'm afraid the tires might hit the top of the wheel opening. Keep in mind the SS/T wheel is 9" wide.






    What is the widest tire you should put on an 8" rim? I would kinda like to go a little wider than the 255/70/15's (29.05" tall/10.04" wide) that were on the rear.

    Here are the sizes I've been thinking about:
    275/60/17 - 29.99" tall - 10.83" wide
    265/60/17 - 29.52" tall - 10.43" wide
    255/60/17 - 29.05" tall - 10.04" wide
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  2. #2
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    Re: Widest Tire on 8" Rim - 1980 Dodge D150

    Those will all fit fine on an 8" rim. What is the backspacing onthe SST wheel?

  3. #3
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    Re: Widest Tire on 8" Rim - 1980 Dodge D150

    Shoulda been garage saling with me here on Sat, I saw a metric buttload of big and wide truck tires and rims, at "cheap to try" prices.
    DD1: '02 T&C Ltd, 3.8 AWD. DD2: '15 Versa Note SV, replacing.. DDx: '14 Versa Note SV << freshly killded :( ....... Projects: '88 Voyager 3.0, Auto with shift kit, timing advance, walker sound FX muffler on 15" pumpers wrapped in 215/65/R15 H rated Nexens.... and a '95 phord escort wagon PnP head << Both may need to go :( ..... I like 3.0s ... so??? ... stop looking at me like I've got two heads!

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    Re: Widest Tire on 8" Rim - 1980 Dodge D150

    Quote Originally Posted by Turbo3Iroc View Post
    Those will all fit fine on an 8" rim. What is the backspacing onthe SST wheel?
    I didn't measure the SS/T wheel's backspacing. It isn't bolted on. I just measured the distance from the back of the slot wheel to the leaf spring and set the SS/T wheel in that position. I didn't realize it when I made the post, but the SS/T wheel is also an inch wider.
    Kevin Isenberg EVERYTHING is for sale!

  5. #5
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    Re: Widest Tire on 8" Rim - 1980 Dodge D150

    My initial thought is for a truck tire (i.e. not a 40 or 45 profile) on an 8.0 i would go up to 275 but not wider. my .02

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  6. #6
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    Re: Widest Tire on 8" Rim - 1980 Dodge D150

    I'm thinking I will try the 275/60/17. Surely my buddy will let me swap tires to another size if they don't work on the truck.
    Kevin Isenberg EVERYTHING is for sale!

  7. #7
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    Re: Widest Tire on 8" Rim - 1980 Dodge D150

    I finally bought the new tires for the 17" Ansen Sprints I've had for almost a year. I'm sorry about the pictures. I don't have the gas tank in the truck (fuel level sender repair), so I can't back the truck out of the basement for pictures. They are Falken Ziex tires. I went with 235/60/17 in the front and 275/60/17 in the rear.







    Kevin Isenberg EVERYTHING is for sale!

  8. #8
    The moderately moderate moderator Turbo Mopar Staff
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    Re: Widest Tire on 8" Rim - 1980 Dodge D150

    Kevin, looks good. Just me, but I would have gone with 255 fronts for better grip.
    I like it.
    Bryan
    86 GLHS #161, 2016 Impala
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  9. #9
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    Re: Widest Tire on 8" Rim - 1980 Dodge D150

    I was wanting to go 255 in front, but I was concerned about clearance. Now that they are mounted and bolted on, I think I was right to go with the 235.
    Kevin Isenberg EVERYTHING is for sale!

  10. #10
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    Re: Widest Tire on 8" Rim - 1980 Dodge D150

    Hmmm, passenger tires, and a model known for squabby sidewalls, and a weight rating barely adequate for just the truck, no load...
    DD1: '02 T&C Ltd, 3.8 AWD. DD2: '15 Versa Note SV, replacing.. DDx: '14 Versa Note SV << freshly killded :( ....... Projects: '88 Voyager 3.0, Auto with shift kit, timing advance, walker sound FX muffler on 15" pumpers wrapped in 215/65/R15 H rated Nexens.... and a '95 phord escort wagon PnP head << Both may need to go :( ..... I like 3.0s ... so??? ... stop looking at me like I've got two heads!

  11. #11
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    Re: Widest Tire on 8" Rim - 1980 Dodge D150

    Hmmm...this ain't no work truck.
    Kevin Isenberg EVERYTHING is for sale!

  12. #12
    The moderately moderate moderator Turbo Mopar Staff
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    Re: Widest Tire on 8" Rim - 1980 Dodge D150

    Quote Originally Posted by GLHS592 View Post
    I was wanting to go 255 in front, but I was concerned about clearance. Now that they are mounted and bolted on, I think I was right to go with the 235.
    Gotcha....didn't realize it was dropped that far.
    Bryan
    86 GLHS #161, 2016 Impala
    SDAC National Member, SDAC Buckeye Chapter Member

    A man has got to know his limitations.....

  13. #13
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    Re: Widest Tire on 8" Rim - 1980 Dodge D150

    I shot a couple better pictures. I need to get a fuel level float so I can get the gas tank back in and take some good pictures.

    Kevin Isenberg EVERYTHING is for sale!

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