68 Riv....What size OEM tyres

Discussion in 'The Hides' started by synchro66, Oct 22, 2010.

  1. synchro66

    synchro66 Well-Known Member

    Can someone on here tell me what size tyres came on 15 X 7 Rally's from the factory for the 68 Riv??
     
  2. Rivman

    Rivman Senior Ottawa Buick Guy

    The rallys are 15"x6" and standard tires would have been 8.45-15s, or optional 225R-15 radials, or H-70-15 wide ovals. :TU:
     
  3. CJay

    CJay Supercar owner Staff Member

    You mean these babies :Brow:
     

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  4. Rivman

    Rivman Senior Ottawa Buick Guy

    Not sure about the width of the white wall stripe, but thats the right size Jason ! :TU:
     
  5. synchro66

    synchro66 Well-Known Member

    So if the standard tire on a 6" rim is 225/70/15, will a 265/60/15 (same aspect ratio) on a 7" rallye wheel work on both the front and rear ??? Has anyone on here tried this on a 68 Riv?
     
  6. funkyman

    funkyman Well-Known Member

    I think if you do some research,you might see that they have managed to put a 275/60/15 on a 7" rim ,ours is 6" so 275 would be bulging way too much and unstable.


    Don`t know whats the biggest size we can go at the back without rubbing the inside guard,fender or exhausr pipe.It looks to me that i only have about an inch and a half on either side before it touches,with 235`s on the rear.
     
  7. synchro66

    synchro66 Well-Known Member

    Funkyman do you have 235's on the front...If so any probs with rubbing etc
     
  8. Briz

    Briz Founders Club Member

    How about Fatties tike these under the Riv. These cars were made for bologna under the tubs!
     

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  9. funkyman

    funkyman Well-Known Member

    No in the rear,but im investigating as to the maximum rim and tire we can put on them,with maximum easthetics and road handling.I don`t want to compromise the ride comfort and handling,but definately increase the cornering abilities of the car with perhaps going with an 18,19" rim and a 40 profile width 295.Any ideas.Whats the maximum classic size we can put on like 15-8 275/50 maybe?
    Does one need an axel modification.I have a Delux 67 Riviera.Not the GS.I`m thinking of putting in a 3.42bolt on Eaton Posi in the rear.
     

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  10. funkyman

    funkyman Well-Known Member

    Can you put more focused photos please and give us the tire and rim exact specifications with the spacing.How does it affect road handling?
     
  11. Briz

    Briz Founders Club Member


    These are the only other shots I have on the computer. If ya need more I will get them later today. Wheels are 15x8 / 235-60 front 15x10 / 275-60 rear. They ride and handle great. good traction. no rubbing front or rear.
     

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  12. GotTattooz

    GotTattooz Well-Known Member

    Not to get off-topic, but I love your 5-slots, Steve. I told you I bought some from a guy in my neighborhood, and then polished them for my wife's 65 El Camino. I posted a pic below of how I bought them vs. after I polished them.

    -Josh
     

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  13. Briz

    Briz Founders Club Member

    They look awsome. Id love to have mine done. Do you make house calls?
     
  14. funkyman

    funkyman Well-Known Member

    Do you have any back spacers ,on that set up.
     
  15. GotTattooz

    GotTattooz Well-Known Member

    Sure thing, Steve. Yours are pretty shiny already. Wouldn't take too much to make them look like chrome.

    -Josh
     
  16. Briz

    Briz Founders Club Member

    No back spacers. I did have to grind off the fins from the outside edge of the drums to get the wheels over them. only enough space left for the stick on wheel weights.
     
  17. Lucy Fair

    Lucy Fair Nailheadlova

    My friend got his Rally wheels widened front to 8'' and rear to 10''.He is running 255/60/15 front and 295/50/15 at rear.I know that he had to put some rubber fillers in rear springs to harden it a bit.Oh i almost forgot its on a 66 Riv.This pic doesnt show it very good....:
     

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  18. funkyman

    funkyman Well-Known Member

    OK I`d love to keep my Original Ralley wheels,but can you ask him who exactly did them for him,what specifications and what off set.I`ll be happy if you can find out the cost,what he paid,so we get an idea of what we will be quoted.I wouldn`t mind running those specs on my Riviera.
     
  19. Lucy Fair

    Lucy Fair Nailheadlova

    Funky post your name, we are all at friendly basis here:TU: .


    As for the specs BS stays not touched,as they widened wheels to the outside.Rear to 10'' and front to 8''.
    From what my friend told me he payed $170 for one wheel including rechroming.He promised me to give me coordinates for that shop.As soon as i will have it i'll post it here for You.

    Peace Kacper.
     
  20. funkyman

    funkyman Well-Known Member

     

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