Register now to get rid of these ads!

1940 Ford Tire Size Question

Discussion in 'The Hokey Ass Message Board' started by AUNUKI, Jun 24, 2008.

  1. AUNUKI
    Joined: Nov 27, 2006
    Posts: 29

    AUNUKI
    Member

    I searched with no luck.
    I am getting ready to order tires and wheels for my 40 coupe. It will have all stock suspension with slightly lowered front(heavy engine shot spring......)
    I remember a post on here that showed several nice 40's with the tire size listed. One was a maroon one with chrome steelies... this is the look I'm shooting for.
    I would like to go with new chrome 15" wheels from coker and bias 2" or so whitewalls.
    Also backspace info would be nice.

    Any help would be appreciated. Thanks
     
  2. Flat Ernie
    Joined: Jun 5, 2002
    Posts: 8,410

    Flat Ernie
    Tech Editor

    I've got the following on my '40:
    Front:
    16x4" stock early Ford wheel
    6.00x16 Firestone blackwalls
    Rear:
    16x5" stock early Merc/Lincoln wheel
    7.00x16 Firestone blackwalls
     

    Attached Files:

  3. AUNUKI
    Joined: Nov 27, 2006
    Posts: 29

    AUNUKI
    Member

    Flat Earnie, thanks for the quick reply. Nice car. Those 7.0-16's really fill up the rear wells nice. I was thinking of going with 8.20-15's which I think are a little shorter. Thanks, Aunuki
     
  4. Flat Ernie
    Joined: Jun 5, 2002
    Posts: 8,410

    Flat Ernie
    Tech Editor

    I have a reversed eye spring & Tardel lowering shackles out back (they're not that long). Front is still stock height...for now.
     

  5. olscrounger
    Joined: Feb 23, 2008
    Posts: 4,007

    olscrounger
    ALLIANCE MEMBER

    here are pics of several I've built---blue one has 15 x6 in front and 15 x 7 in rear with 1 inch reverse due to narrow 9"-tires are 185/65 on front and 225/70 on rear-cloud mist grey with red wheels have same in front with centered 15 x7 in rear-tires are 195/65 front and 235/75 rear-both have dropped axles,stock springs with 8 leaves. Convert is the same----other cloud msit grey has same in front but orig 40 wheels front and rear (wider rear end) -ideal ht. for me is 23-23 1/2 at front fender and 26 at rear---have had no luck with any aftermarket springs in front--wheels came from Ralleye America (wheel kid)
     

    Attached Files:

  6. AUNUKI
    Joined: Nov 27, 2006
    Posts: 29

    AUNUKI
    Member

    Olscrounger, wow, nice group of cars. Thanks for the good info. I will look up the sizes and compare to bias sizes...should be a good start. Thanks, Aunuki
     
  7. AnimalAin
    Joined: Jul 20, 2002
    Posts: 3,417

    AnimalAin
    Member

    I prefer a 165R15 front tire on 3.5-5 inch rims, and currently have P285/70R15 rears on eight inch rims. They are, to tell the truth, about ten lbs in a five lb bag. The inner fender panels are pushed in some, the outer fender opening tweaked a touch, and the tires are still too close. I have run it that way for a long time, but since the tire size is obsolete, my next set will be P265/75R15. About the same height, but a little narrower, which should improve the clearance issues. Another size worth considering for the rear is the P245/75R16; I run them on the back of my roadster on an eight inch rim, and they might work OK for a '40 as well.
     
    ky tudor likes this.
  8. AUNUKI
    Joined: Nov 27, 2006
    Posts: 29

    AUNUKI
    Member

    Thanks for the info, Aunuki
     
  9. Steve 38
    Joined: Jan 5, 2007
    Posts: 490

    Steve 38
    Member

    Sadly, I don't own this car. I wish I did, but I don't. Its owned by Bob Lick. I'm building a '38 coupe and will be using the same wheel/tyre/suspension combo to (hopefully) gain the same stance. Anyway, it runs 15" Merc rims, with 550-15, and 820-15 tyres.

    Refer to Traditional Rod & Kulture mag issue #13, and Hop Up annual #8 for more pics and info.

    Hope this helps.
     

    Attached Files:

  10. AUNUKI
    Joined: Nov 27, 2006
    Posts: 29

    AUNUKI
    Member

    Thanks, after a lot of great input, I think I'll try 8.20-15's rear and 5.90-15's front...maybe. Aunuki
     
  11. ROBERT JAM
    Joined: Nov 13, 2002
    Posts: 1,203

    ROBERT JAM
    Member

    Olscronger what tire sizes on the cloud mist wheeled coupe.I undestand you are using the orginal wheels
     
  12. Ebert
    Joined: Feb 13, 2006
    Posts: 1,915

    Ebert
    Member

    Aunuki,
    I have Coker Classics G-78 X 15 on the rear and 560 X15 on the front. Rear rims are 15 X6 and fronts are 15 X 5 gennies. If you like piecrust style, I ordered the following from Coker which fit great:
    Rear: Firestone 560-15 with 2 3/4" whitewall
    Front: Firestone 710-15 with 2 3/4" whitewall
    If you are going for the traditional look, the Firestones look great. The Coker Classics are what you see in the pics that I will send you if you PM me your email address and since the pics were taken, I have taken out one more leaf out...looks much better and still rides great.

    I previously order the bigger L78-15 for the rears, but they would not fit properly (too wide) with my stock rear end.

    Good luck!
    Ebert
     
  13. oldcarnut47
    Joined: Dec 14, 2007
    Posts: 33

    oldcarnut47
    Member

    olscounger, on the cloud mist grey coupe with red wheels, what backspace did you use on the rear 15x7 wheels? 4 -1/2"?
    bill
     
  14. 19Fordy
    Joined: May 17, 2003
    Posts: 6,964

    19Fordy
    Member

    Hope this helps. Front chin pan is 4 3/8 " off the ground.
    Magnum 4 inch dropped axle. The one that is 3/4 in. narrower than stock to give better tire clearance. Magnum dropped steering arms. Posie 39 in. reversed eye spring # 2040. Coker 5:60 x 15 2 3/4 WW up front on 15 x 5 1/2 early Ford truck rims. Tire dia. is 25.88". Rear suspension is stock with BF Goodrich 7:60 x15 WW (3 3/8in.) from Coker. 28.66 " tire dia. Rear rims are 15 x6 SOLIDS with 4 inch back spacing. Years ago I used 8:20 x 15's on back with 15 x 6 Lincoln rims (49-51). 4 1/4 inch back spacing. They fit but rubbed on inner fender panel once in a while on corners.
     

    Attached Files:

  15. Moriarity
    Joined: Apr 11, 2001
    Posts: 19,863

    Moriarity
    SUPER MODERATOR
    Staff Member

    15 x 5 front with 5.50 15s (4 inch dropped axle)
    15 x 6 rear with 8.20's I think the back space is 3 1/4. the tire is real close to the fender but doesnt rub.

    [​IMG]
     
  16. 19Fordy
    Joined: May 17, 2003
    Posts: 6,964

    19Fordy
    Member

    Just a reminder. On your rear tires make sure the "Fat tires" don't rub against the spring shackles. Correct backspacing is important.
     
  17. hotrod40coupe
    Joined: Apr 8, 2007
    Posts: 2,559

    hotrod40coupe
    Member

    I know you said you were going with bias ply tires but this should give you tire sizes to work with. I'm sure a tire shop can convert them for you. I am running P185/70 R 14 on 14 X 6 wheels in the front and P225/70 R 15 on 15X7 wheels in the rear. It has a dropped front axle and reversed eyes on the front spring. I think it sits right and has an agressive look.
    [​IMG]
     
  18. oldcarnut47
    Joined: Dec 14, 2007
    Posts: 33

    oldcarnut47
    Member

    i have 185/70/r15s onthe front with 4" dropped axle, im real happy with the way the front sits, but the on the rear i mounted 235/75/r15s on 15x7 genies with 4" back space and only had maybe 3/8" clearance at the fender edge but about a inch at the rear radious rod at the shackle mount so im thinking 4 1/2" backspace might work but would like to know if anyone has used that combo, i put a posie reversed eye spring on the rear that is supposed to loewer the rear 2 1/2" but the rear still sits too high for what i want so may need to remove some leaves
     

    Attached Files:

    • rfin.JPG
      rfin.JPG
      File size:
      39.7 KB
      Views:
      459
  19. firemangordy
    Joined: Feb 28, 2007
    Posts: 338

    firemangordy
    Member

    Front:
    Magnum 4" dropped axle with stock spring.
    15x5 Merc wheels with 165x15
    Rear:
    Stock spring de-arched 2"
    Wheels are Merc centers widened to 6" with 235/75x15.
    Tires are coker.
     

    Attached Files:

    PONTNAK123 likes this.
  20. AUNUKI
    Joined: Nov 27, 2006
    Posts: 29

    AUNUKI
    Member

    Looked this morning and saw a few more responses...all good info. The pics are all nice, great looking cars. Thanks again for the help. Aunuki
     
  21. bondolero
    Joined: Dec 10, 2008
    Posts: 558

    bondolero
    Member

    Love your 40's. Do you have a photo of a forty done in tropical green 39 Ford color ?
    thanks
    Larry
    Phx AZ
     
  22. rustydogs
    Joined: Nov 9, 2006
    Posts: 309

    rustydogs
    Member
    from canada

    would 165 r15 look good front and back on a 41 vert that is very low full skirts rear
     
  23. joel
    Joined: Oct 10, 2009
    Posts: 1,773

    joel
    ALLIANCE MEMBER

    185 75R 15 is about as small as I would go in front and 205s in back
     
  24. 19Fordy
    Joined: May 17, 2003
    Posts: 6,964

    19Fordy
    Member

    FRONT: 5:60 x 15 Coker wide whites (2 3/4 in white wall) on early Ford 15 x 5 1/2 Pick up rims with 3 3/4 in. back space.Total wheel dia is 25.88 in. Dropped 4 in Magnum axle and steering arms with Posie reversed eye spring #2040 and shackles. Magnum axle is 3/4 in narrower than stock for better tire/fender clearance. Front chin pan is 4 1/8 in off ground. Stock sway bar. STOCK REAR with 7:60 x 15 (from Coker) on 15 x 6 SOLIDS rims with 4 in. back space. Rear spring is stock. WW is 3 3/8 in wide. Tire dia. is 28.66 in.
    Keep in mind if it's tooooo low you will need two jacks to change a flat tire. One lifts the frame. The other lifts the axle. Years ago I ran 5:60x15 (with port-a-walls) up front on 51 Merc rims with the stock suspension and 8:20x15 on the stock rear with 50 Lincoln rims - which are 1/2 in wider than Mercs. I could change the tires if I put a jack under the frame. See it in winter photo. The last photo is the car with completely stock suspension with Lester 6:00x16 tires on 40 Ford rims. Hope this helps. PS: WHILE YOU HAVE YOUR FRONT WHEELS OFF ON YOUR STOCK FRONT END PLEASE MEASURE THE DISTANCE FROM WHEEL MOUNTING SURFACE TO WHEEL MOUNTING SURFACE of the drums VERY CAREFULLY as I would like to know what it is.
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
     
    Last edited: Nov 6, 2010
    32SEDAN likes this.
  25. FOURTYDLX
    Joined: Feb 22, 2006
    Posts: 715

    FOURTYDLX
    Member

    [​IMG] 15/6 3 1/2 15/7 4 1/2 195/15 235/15
     

    Attached Files:

  26. Bader 2
    Joined: Nov 20, 2013
    Posts: 115

    Bader 2
    Member

    16x4 front with600 16,16x5 rear with750 16, stock ford wheels rear stack has some springs removed,front has to come apart to get modified,probably drop frt 1 1/2" rides nice no rubbin
     

    Attached Files:

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2020 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.