Vintage Torque Thrust Wheels - Team Camaro Tech
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post #1 of 14 (permalink) Old Dec 16th, 12, 09:33 AM Thread Starter
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Vintage Torque Thrust Wheels

Can anyone tell me the difference between Torque Thrust D's and Torque Thrust Originals. They look the same to me. Looks like maybe a slight difference in the shade or texture of the gray on the spokes. I guess I am looking for what would have been correct back in the day.

I wanted to go with 15 X 7 wheels and 235/60R15 BF Goodrich TA's. I can get 4 wheels and tires, mounted, balanced, and shipped with caps and lugs for $1240. They will be going on a 69 Z/28 with stock brakes and suspension.

Here is what I am looking at.

http://www.wheelsforless.com/america...rq_thrust.aspx

Were these wheels a factory option back in the day, or were they a dealer/speed shop item? I would appreciate any info or opinions.
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post #2 of 14 (permalink) Old Dec 16th, 12, 10:29 AM
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Re: Vintage Torque Thrust Wheels

The spoke is different the D has more rounded humped if you will entery to the center of the wheel. The original has a more straight entery to the center. I think they both look good. They were not factory option but I would be willing to bet you could get them as dealer installed.

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post #3 of 14 (permalink) Old Dec 16th, 12, 10:41 AM
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Re: Vintage Torque Thrust Wheels

The originals don't clear some disc brakes. The "D" stands for disc brake..., or it stands for the "D" shape of the spoke depending on you you ask.

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post #4 of 14 (permalink) Old Dec 16th, 12, 11:19 AM
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Re: Vintage Torque Thrust Wheels

You won't find too many old school wheels with decent backspacing. Stuff like 8.5" wide wheels with 3.xx backspacing was common for the deep dish look leaving the tire sitting under the fender lip with the back end jacked up for clearance. Wider wheels left the tires 2-4" outside the wheel well (again all about the deep dish look)...

Typically all the newer versions of vintage wheels have more backspacing options and usually the valve stem has been moved...

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post #5 of 14 (permalink) Old Dec 16th, 12, 04:34 PM Thread Starter
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Re: Vintage Torque Thrust Wheels

Both the "D" and the "Original" list a 6mm offset and a 3.75" backspacing on a 15" X7" rim. Not sure what that means.
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post #6 of 14 (permalink) Old Dec 16th, 12, 05:54 PM
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Re: Vintage Torque Thrust Wheels

Quote:
Originally Posted by baldeaglemtnman View Post
Both the "D" and the "Original" list a 6mm offset and a 3.75" backspacing on a 15" X7" rim. Not sure what that means.
Backspacing of 3.75" means the hub mounting face is 3.75" from the inside face of the wheel. Being a 7" wheel, the center of the wheel's width is 3.5" from both the inside face and outer face, so the difference (backspace of 3.75" - centerline of 3.5") gives an offset of 0.25", or 6mm in metric speak.
The TT 'D' spoke is designed with more curvature to give better clearance to disc brake calipers, but this doesn't necessarily mean the backspace/offset differ from the TT-O.

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post #7 of 14 (permalink) Old Dec 16th, 12, 05:56 PM
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Re: Vintage Torque Thrust Wheels

Quote:
Originally Posted by baldeaglemtnman View Post
Both the "D" and the "Original" list a 6mm offset and a 3.75" backspacing on a 15" X7" rim. Not sure what that means.
That's a negative 6 offset and you want a positive 6 or 4.25" backspacing on a 7" wheel...

In more practical terms a tire mounted on a 7" wheel with 3.75" backspacing will have 1/2" less clearance at the fender lip and 1/2" more clearance from the frame rail than the same tire on a factory 15x7 rally wheel. Probably work if you run an F70 x 15 tire or equivalent in conventional sizes...

Mass produced wheels setting in stock at tire shops across the country get made to fit the most possible applications. If you really want to do it right get the same wheel but custom made to the backspacing/offset that works best for what you are trying to do... and yah, instead of a buck and a quarter each they will cost you more like $300 each. I really am surprised you can't find 15x7 4.25 bs T-thrust D wheels out there!

...Dennis

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post #8 of 14 (permalink) Old Dec 16th, 12, 10:23 PM
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Re: Vintage Torque Thrust Wheels

Quote:
Originally Posted by DjD View Post
That's a negative 6 offset and you want a positive 6 or 4.25" backspacing on a 7" wheel...

In more practical terms a tire mounted on a 7" wheel with 3.75" backspacing will have 1/2" less clearance at the fender lip and 1/2" more clearance from the frame rail than the same tire on a factory 15x7 rally wheel. Probably work if you run an F70 x 15 tire or equivalent in conventional sizes...

Mass produced wheels setting in stock at tire shops across the country get made to fit the most possible applications. If you really want to do it right get the same wheel but custom made to the backspacing/offset that works best for what you are trying to do... and yah, instead of a buck and a quarter each they will cost you more like $300 each. I really am surprised you can't find 15x7 4.25 bs T-thrust D wheels out there!
Cragar is making 15x7 wheels in 4.125 back space and 15x8 wheels with 4.5 backspace. I have the Eliminator on my 67 and they cost $130.00 ea. Check my sig for pics and specs.

"If you can leave black marks on a straight from the time you exit a corner till the time you brake for the next turn.......
Then, you have enough horsepower."
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post #9 of 14 (permalink) Old Dec 17th, 12, 12:58 AM
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Re: Vintage Torque Thrust Wheels

What wheels came on the Yenko's? I thought they were torque Thrust II's.

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post #10 of 14 (permalink) Old Dec 17th, 12, 02:49 AM
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Re: Vintage Torque Thrust Wheels

Quote:
Originally Posted by 69z28freak View Post
What wheels came on the Yenko's? I thought they were torque Thrust II's.
Didn't the Yenko cars have Atlas wheels? The modern AR Torq Thrust models (TT Original, TT D, TT II, etc) all differ from the 60's design, in such areas as hub bore size, lug nut style, spoke shape, 2-piece construction to allow for varying backspace, etc. Still look good, but you can spot the originals a mile off.

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post #11 of 14 (permalink) Old Dec 17th, 12, 08:06 AM
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Re: Vintage Torque Thrust Wheels

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Originally Posted by 69z28freak View Post
What wheels came on the Yenko's? I thought they were torque Thrust II's.
Those are a modern wheel. The D and orgials are more like what they came with.

"If you can leave black marks on a straight from the time you exit a corner till the time you brake for the next turn.......
Then, you have enough horsepower."
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post #12 of 14 (permalink) Old Dec 27th, 12, 01:44 PM
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Re: Vintage Torque Thrust Wheels

Much along the same lines as Steve, I was also looking at a set of TTO's for my '69. But with only 3.75 offset available will I get a 15x8.5 and maybe a 255 TA under the standard rear wheel well?
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post #13 of 14 (permalink) Old Dec 27th, 12, 09:16 PM
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Re: Vintage Torque Thrust Wheels

Quote:
Originally Posted by sco1035 View Post
Much along the same lines as Steve, I was also looking at a set of TTO's for my '69. But with only 3.75 offset available will I get a 15x8.5 and maybe a 255 TA under the standard rear wheel well?
I'm no expert on the matter, but I seriously doubt it unless you jack the rear way up. I have 8" rear wheels, 4.5" backspace, 255's on my 68 and it'll be close to rubbing the fender (quarter) lip.

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post #14 of 14 (permalink) Old Dec 28th, 12, 07:46 PM
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Re: Vintage Torque Thrust Wheels

Hey Steve, I have had both on my 69, I had a set of the TT-D 15x7 with 255/60 on the back and they did rub on the outer lip, sold those on a 68 I had and got a set of the TT-O also 15X7 with 245/60 without issue.

I liked the TT-O with the lighter center (more like sandblasted rough surface) better than the D with a painted darker center. I am running a 235/60 on the front and it is tight, allen head bolts on the top of the fender well and a little extra negative camber. Here are some pics.

Patrick

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