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Technical Lee Pratt's '40 coupe.....tire sizes?

Discussion in 'Traditional Hot Rods' started by Jake H., May 5, 2015.

  1. Jake H.
    Joined: Sep 16, 2003
    Posts: 489

    Jake H.
    Member

    I've searched to no avail.

    And I don't have the back issue of TRJ with the car featured.....

    Does anybody know what size tires, front and rear, he is running on it?

    I'm guessing maybe 7.60-15 out back....not sure about front.

    My '39 is running 8.20's and 5.60's, but I am tired of the cartoonish rubber rake. Time to dial everything down a bit, and keep it in the late '50s vein.
     
  2. Curt Six
    Joined: Sep 19, 2002
    Posts: 994

    Curt Six
    Member

    Your tires aren't too far off. The tech sheet we ran in TRJ #13 has them listed as 6.40x15 front and 8.20x15 rear. I'm not sure if he changed that with the recent makeover, but I always thought that combo made for a pretty righteous stance.
     
    falcongeorge likes this.
  3. Ryan
    Joined: Jan 2, 1995
    Posts: 21,662

    Ryan
    ADMINISTRATOR
    Staff Member

    Curt is right on... I just asked him a couple of weeks ago...
     
  4. Jake H.
    Joined: Sep 16, 2003
    Posts: 489

    Jake H.
    Member

    Thanks, guys.

    It makes sense for me to keep the 8.20's, then, since I still run 3.78:1 gears in the banjo.
    The 6.40 fronts fill up that front fender perfectly, on Lee's car. Mine sits/has the same frontend setup as him.
     

  5. I wanna see photos of your cartoonish rake. I've got some of that going on with my stake truck, but I'm running late model style radials.
     
  6. 504640
    Joined: Aug 8, 2011
    Posts: 533

    504640
    Member

    Yeah, Me too! I want a cartoonish rubber rake!
     
  7. Jake H.
    Joined: Sep 16, 2003
    Posts: 489

    Jake H.
    Member

    Pretty much sits just like the Bob McCoy '40 Tudor......looks great on a flamed '40 Deluxe, but I am more into subtlety.
    Especially on a mostly stock, black '39 Deluxe. It lends itself to some restraint, even if it's running 15" steelies from a stock '54 F100....
     
  8. oj
    Joined: Jul 27, 2008
    Posts: 6,457

    oj
    Member

    Do you know the tire heights?
     
  9. El Pratt
    Joined: Jul 28, 2009
    Posts: 34

    El Pratt

    Neither Curt or Ryan know what they're talking about. Fronts are 5:90 X 15, rears are 8:20 X15. You can't believe everything you read in the magazines. :)
     
  10. BLAKE
    Joined: Aug 10, 2002
    Posts: 2,783

    BLAKE
    Member


    Ooooh.... BURN!
     
    bowie likes this.
  11. 504640
    Joined: Aug 8, 2011
    Posts: 533

    504640
    Member

    What type of challege is it to change the rear 8.20's in your 39 with the long axel snout?
    Everybody is encouraged to answer!
     
  12. oj
    Joined: Jul 27, 2008
    Posts: 6,457

    oj
    Member

    Is the rear hub a wide5? they are pretty narrow, 4ish inches. 8,20 tire fit on them?
     
  13. JeffreyJames
    Joined: Jun 13, 2007
    Posts: 16,628

    JeffreyJames
    Member
    from SUGAR CITY

    My '35 really could use tires like his. They are perfect but I can't bring myself to run 15's because most of the time they have a hard time filling the wheelwells. I wish I could find medium white walls for 16" tires to mimic that look. Probably the best '40 ford ever?
     
  14. Jake H.
    Joined: Sep 16, 2003
    Posts: 489

    Jake H.
    Member

    Easily in my top five '40 Fords, ever.

    Thanks for clearing up the sizes, Lee!

    I am running '40 drums all around on my '39. And yes, it can be a pain to fit the 8.20's around the axle snout. Just have to jack it high enough, and angle it in. Steel rims are stock F100 offset, so it's not too challenging.
     
  15. 504640
    Joined: Aug 8, 2011
    Posts: 533

    504640
    Member

     
  16. 504640
    Joined: Aug 8, 2011
    Posts: 533

    504640
    Member

    I am running 600 x 16s on my 40, with the wheels being stock 46 units. I am not sure of the width of a stock 46 wheel, but I bet they are narrower than your 15,s o I am hoping the big meats (760's -820,s) will not be a big challenge to get bolted on! Pratt's first version, with olds rocket, is my all-time favorite 40!
     
  17. And straight from the man himself ! Bang !
     
    kidcampbell71 and Jake H. like this.
  18. Atwater Mike
    Joined: May 31, 2002
    Posts: 11,625

    Atwater Mike
    Member

    Well... 6.40X15s were the standard size of fronts on everything in high school...
    That is, 'righteous' high school. (1955-1959; insert earlier if necessary!)
    Dayton tires, U.S. Royal Masters, as long as they sported the 2.25" whitewall.
    Blackwalls likewise, but whites were popular. This was Northern Calif., bay area...San Jose.
    7.60X15s were on most rears, but we (friends and self) opted for 8.20X15.
    The 5.00/5.50/5.90X15s were available from the trunks of Volkswagens...most 'purloined' tires were new spares that still had the blue protective dye on the sidewalls.
    There were at LEAST six 1940 Fords at school with the 5.50/5.90X15 fronts, most with 7.60 rears.
    My pal Teddy DeMello ran 6.40s on the front of his black '33 Tudor, as I advised him the 5.90s (and smaller) would lower the front 'excessively'.
    This was after I installed the chrome 4" dropped axle that Marty Costello dropped for us (Mor-Drop' in Oakland) along with reversed-eyed flattened front spring...
    That '33 tudor was SO LOW the 6.40s would contact the fender braces on a bump.
    ...and I 'advised' him that the 5 series would drop it too low... LOL
    Teddy's chrome axle was invisible unless the viewer was laying down, with his head on the ground...peering under the bumper blade that was 5" off Terra Firma.
    Rears hiked the back some, 8.20X15 U.S. Royal Masters.
    Oh, the front 6.40s were also U.S. Royal Masters; they didn't come in the '5' series.
    Another good reason...
    Teddy's '33 was coined "Mad Rake" by the high school paper editor, Marty Wright.
    Marty was right.
     
  19. 100% Matt
    Joined: Aug 7, 2006
    Posts: 2,747

    100% Matt
    Member

    I'm currently running 560-15/820-15s on my 40. My front tires are pretty dry rotted and I'm going to be swapping them out for 590-15's for sure.
     
  20. neilswheels
    Joined: Aug 26, 2006
    Posts: 1,213

    neilswheels
    Member
    from England

    Anyone got any pictures? This is just one of the decisions I’ve gotta make, and pics always help. In my opinion 5.60’s are too small on the front
     
  21. 100% Matt
    Joined: Aug 7, 2006
    Posts: 2,747

    100% Matt
    Member

    IMG_1845.JPG
    Not the greatest picture but that’s 5:60-15 with 8:20-15. The black wall to white wall ratio on these particular 5:60-15’s bothers me. The white wall is too wide. The 5:90-15 will fill the wheel well a bit more and has a better whitewall to black wall ratio it’s also a Bridgestone tire which matches the back
    IMG_2686.JPG


    Sent from my iPhone using The H.A.M.B. mobile app
     

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