69 roadrunner woe's rear tire size

Transmission and Drivetrain

  1. Russ69Runner

    Russ69Runner Well-Known Member

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    Hey Guy's what is the largest tire that I can fit under my car on the rear. I measured the inside of the finder well and can't get a 12 inch wooden ruler to fit so thinking that all I will be able to put in their is 10 inch width tire. Also do I need an off set rim and how much. Thought about putting mini tub's in but that is a lot of work. Also have to move a lot of thing's so I don't think that is worth it. To raise the car for 28 inch tall tire we use to put the springs on top of the rear end. So any Idea's would help want to make the car look bad. Thank you for all your help you guy's have a lot of information. I have forgotten a lot and looking for some one who is doing the same thing. See Ya.
     
  2. quikbird

    quikbird Well-Known Member

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    10 inch is usually the max for a normal wheel. 4.5 in backspace
     
  3. Russ69Runner

    Russ69Runner Well-Known Member

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    Hey Quikbird thank you for reply. My friend and I had a duster wanted to put more rubber on the ground. We put the rear spring's on top of the rear end. We got 12 inch under their put the tire out side the finder I remember that it slung a lot of dirt on the out side of the car. Well on the other hand I guest that you know what I read about mine tub's they require a lot of work and a lot of stuff has to be moved. Well appreciate your insight on these matter's. When she goes into the barn for rebuild lot's of sheet metal work to do so if no wore out will contemplate this move. Thank you Guy.
     
  4. 69hemibeep

    69hemibeep Sponge Bob Square Wheels

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    Doing a spring over will cause bad axle wrap
     
  5. Goon

    Goon Well-Known Member

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    I have Mickey Thompson Drag Radials on my 69 RR
    295/65R15 on 8" wide rims with 4 1/2" back spacing
    30.1" tall
    11.8" wide
     
  6. Russ69Runner

    Russ69Runner Well-Known Member

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    Thank you for your info. I think that maybe 10 inch wide tire will be enough to give the old girl that bad look that I am looking for. All you guy's are grate. Just got the motor running smothely. Had problem's with Idel but now is doing better. Russ69Runner.
     
  7. Russ69Runner

    Russ69Runner Well-Known Member

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    Hey Goon thank you for your info. Got the motor running and got it to ideal down. Just ordered my door hinge pillar post and inner cowl part's lot's of rust on driver's side front finder and parts I ordered. Going to start their. Think have to replace rocker also show's some rust on cowl top and maybe bottom. Well thank's again.
     
  8. 1baddogg

    1baddogg Well-Known Member

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    13419136_10209142516347451_3431388188077714263_n.jpg 10s fit good

    13419136_10209142516347451_3431388188077714263_n.jpg
     
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  9. bschomske

    bschomske Well-Known Member

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    I want to stay with my 14" tires so i guess I will be looking for the biggest tire to fit on a stock magnum 500 wheel. Any suggestions of a tire.I like cooper cobras with the white leeter..
     
  10. djais1801

    djais1801 Well-Known Member

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    thought you were selling her?
     
  11. dmartin

    dmartin Well-Known Member

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  12. 1778ppr

    1778ppr Plymouth Owner

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    Cooper Cobra Radial G/T P235/60R14 their widest 14" RWL
    BF Goodrich Radial T/A P245/60R14 their widest 14" RWL

    There maybe wider 14" tires out there, but 245 is the widest I know about.

    Just saw the date that was posted.
     
  13. Russ69Runner

    Russ69Runner Well-Known Member

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    I have found that you need the rite width rim for the tire or it will wear in the middle it also effects the side wall's. If I put a 10 inch wide tire on a rim the rim should be 10 inch wide also. Will make the tire last a lot longer and have better grip on the road. That is what I was told when first started street dragging. :drama:
     
  14. 69hemibeep

    69hemibeep Sponge Bob Square Wheels

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    It will go on an 8. You need to know how wide a rim and what offset will center in the wheel well and how wide of tire will fit. I don't know but it has been discussed in the past
     
  15. Russ69Runner

    Russ69Runner Well-Known Member

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    Yea that is true. An 8 would not be to small still think a 10 inch wide rim would be better if it will fit. I for get where I saw the article think it might have been on Mickey Thompson tire and rim's.
     
  16. 1baddogg

    1baddogg Well-Known Member

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    It was but only because I hadn't put the new overflow bottle on it . but all that fixed now , needed some oil dry didn't I ? lol
     

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