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GeoffInCarlsbad
05-29-2016, 10:22 PM
Hi folks:

Just getting back after health issues.

Looking to source steel wheels for my 1961 T-Bird Convertible.

Shop Manual indicates: 8.00 x 14-4 size tires.

I measured the original hub caps and they are 14" so, I just want to validate the OEM wheels were 14". What's the proper width of the wheel?

I will check with Coker for closest tire size, but does anyone else have any suggestions for getting original-looking tires and what their experiences have been?

Thanks,

geoff

dgs
05-30-2016, 08:59 AM
Squarebirds also came with the same 8.00-14 tires. They are tall and skinny, unlike modern tires which are short and fat. The best match in radials are 215/75R14 or 225/75R14 and that's what most Squarebird owners are running. Both are going to be a bit shorter and a bit wider, however.

According to Coker:
the 8.00-14s are 7.7" wide & 27.59" tall

The modern sizes can be calculated[1], although there is some variation:
the 215/75R14s are 8.46" wide & 26.69" tall
the 225/75R14s are 8.85" wide & 27.28" tall

I hope that helps

[1] - the first number is the width in millimeters, the second number is the sidewall height as a percentage of the width and the third is the wheel diameter in inches.

So, for 215/75R14:

Width = 215mm/25.4 = 8.46"
Height = 8.46" * .75 * 2 + 14" = 26.69"

del
05-30-2016, 10:31 AM
Here is what the Coker Classic 215/75R size looks like on the car. These were mounted spring 2015 and I'm pleased with them.

bird 60
05-30-2016, 07:47 PM
Hi Geoff, good to hear you're back from your health issues.
I have a '60 Bird & the tire size is 225/75R14 Coker Radials with a 2 1/2" Whitewall.
I am very happy with the appearance, handling, & quietness.

Chris....From OZ.

GeoffInCarlsbad
06-01-2016, 06:28 PM
Hi guys:

I only expected the best answers from you all! Thanks. So I guess my last question is:

If I buy 14 inch steelies, is there an issue with width or are they pretty much standard?

~g

DKheld
06-01-2016, 09:09 PM
Glad you guys are happy with your Cokers.

Guess compared to bias plys they are acceptable.
I had Bias plys on mine (G78-14) from about 1994-2004. Put Diamond Back Radials on in 2004 - loved them (made by Dayton). Car drove SUPER - almost as good as a modern car and as well as my Ford E-150 van.

Recently replaced the 10 year old Diamond Back radials with Coker Classic radials.

Exact same size - no changes to the suspension, alignment steering etc.

Car is all over the road - I don't like the tires at all. Used to be able to drive with one hand on the wheel and no sawing back and forth. Now I don't feel comfortable driving the interstate at 70mph with 2 hands on the wheel. I've tried different pressures with about 44psi working the best. Wish I had gone back with Diamond Backs..

Just my 2 cents

Eric

Sure - they look fine but I would settle for looking worse and driving better.
http://media5002.dropshots.com/photos/260234/20160330/b_184226.jpg

http://media5000.dropshots.com/photos/260234/20160330/b_184218.jpg

del
06-02-2016, 09:00 AM
Hi Eric,
In my case I was replacing aged bias plys with the Cokers, so yes there was a big improvement in handling. I'm interested in your tire pressure experimenting, though. What pressure are other folks using on the radials? I did notice a bit of the "wandering" effect you mentioned when the tires were first installed last year, but I've either become used to it or it is less now that the tires are broke in.

bird 60
06-02-2016, 09:49 AM
36 psi.
Chris.....From OZ.

dgs
06-02-2016, 01:14 PM
Hi guys:

I only expected the best answers from you all! Thanks. So I guess my last question is:

If I buy 14 inch steelies, is there an issue with width or are they pretty much standard?

~g

A 14" wheel only tells you what the diameter is. They will vary in width & offset, bolt pattern, center hole, etc. The Squarebird wheel, I believe, is 14" x 5.5" wide with a 3/4" offset or 4" backspace with a 5 x 4.5" bolt pattern. I'm not sure if the Bulletbirds used the same wheel dims or not, but with the same tire size they are probably close.

Here's a good image showing what the terms mean. All of these dimensions vary depending on the application.

http://www.eaglewheels.com/images/wheelsecton.jpg

OX1
06-03-2016, 07:02 AM
I recently put these on. http://www.summitracing.com/parts/HKT-10703/

Only a small whitewall, but they drive fine. No wandering, etc...
up to well over 70.

del
06-03-2016, 05:28 PM
36 psi.
Chris.....From OZ.
Thanks for the info!

GeoffInCarlsbad
07-27-2016, 11:44 AM
I am seeing mixed reviews regarding Diamond Back Radial and Coker's American Classic Radials.

I am preparing to replace my tires. The Cokers are appealing because they come in 8.00-14, OE size, but is the handling that much worse than the DB 215 75/R14?

Plus the DB's are about $22 each less expensive...so if anyone has any further reviews would love to hear about them.

dgs
07-30-2016, 08:58 PM
... The Cokers are appealing because they come in 8.00-14, OE size, but is the handling that much worse than the DB 215 75/R14? ...

The 8.00-14 would be bias plays, not radials, and I think they would not handle as well as the radials of either brand.

GeoffInCarlsbad
08-02-2016, 01:16 PM
American Classic Tires offers an 8.00-14 Radial.

I found a local (Fallbrook, CA) supplier who also sources these tires, and similar.

Because they are local, I will be going through them and saving myself $'s in shipping by picking them up myself.

Below is Coker's link:

https://www.cokertire.com/american-classic-800r14-2-1-4-inch-whitewall.html

GeoffInCarlsbad
08-02-2016, 01:36 PM
Hi:

Instead of going with 14" wheels, I am considering keeping the 15" wheels, and going with 215/75R15. The diameter of those tires more closely matches the 8.00-14:

According to Coker:
the 8.00-14s are 7.7" wide & 27.59" tall

The modern sizes can be calculated[1], although there is some variation:
the 215/75R14s are 8.46" wide & 26.69" tall
the 225/75R14s are 8.85" wide & 27.28" tall

the 215/75R15 are 8.46" wide & 27.69" in diameter. Theoretically that should work.

I currently have 15" Rally Wheels with 215/65R15's, whose diameter is 25.998" (hence my speedometer reads fast). The car came with these.

From a handling perspective, I'd prefer the modern size on the 15" wheel, and going with 215/75R15's.

Any thoughts?

dgs
08-02-2016, 08:57 PM
I think that's a good plan. Closer in height, not too much too wide. It should ride and handle well and look great.

GeoffInCarlsbad
08-03-2016, 11:46 AM
Hi DGS:

Yes, that's my thought as well. Everything then is in OEM spec (or close to it). I'm picking up on Friday, will post pics once I get them mounted on the car.

Thanks for all of your help.

Regards,

~g

pbf777
08-03-2016, 02:42 PM
Do you know what the width & back spacing is on your 15" rim? Scott.

GeoffInCarlsbad
08-03-2016, 02:53 PM
I believe they are 3.25".

GeoffInCarlsbad
08-07-2016, 11:53 AM
15" TrueSpoke Wire Wheels
215/75R15 American Classic Radials.

Because Front Drums have weights, I had to put 5/16" wheel spacers in the front. I had to make sure that I had at least 5 full threads on the lugs. I have 6. I most likely will find a machine shop to help me replace the lugs with longer lugs to be 100% sure for safety reasons, but for now, with the local driving (very little if any highway) I should be OK with the current lugs, tightened to 80 ft-lbs. There should be enough thread to hold.

I also removed the fender skirts to show.


http://i1226.photobucket.com/albums/ee407/geoffincarlsbad/New%20Wheels%201_zpsqzqozgry.jpg (http://s1226.photobucket.com/user/geoffincarlsbad/media/New%20Wheels%201_zpsqzqozgry.jpg.html)

http://i1226.photobucket.com/albums/ee407/geoffincarlsbad/New%20Wheels%202_zps08hnu9fh.jpg (http://s1226.photobucket.com/user/geoffincarlsbad/media/New%20Wheels%202_zps08hnu9fh.jpg.html)

YellowRose
08-07-2016, 02:05 PM
Wowww. That really sets her off beautifully, Geoff! I am always looking for Bulletbirds to consider for the Calendar.... If interested, check out the information in Anything Goes on specifics on taking pix and submitting them to me for next years calendar. I might have already told you this. Now that I am 80, my Rememberer is more of a Forgeterer.. :D

GeoffInCarlsbad
08-07-2016, 03:50 PM
Hi Ray

It would be an honor. I'll check it out and set something out. When is your deadline?

YellowRose
08-07-2016, 04:31 PM
You have time as I will not start serious consideration of the Tbirds I have to look at until September sometime. Depending on the number of Tbirds to consider, I probably will not make my final decisions until sometime in October.