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I have perused the forums and different threads on this topic.

My question is can anyone point me to the thread or tell me exactly what my backspacing and offset need to be to put 17x8 inch rims on my 67.

I am doing this because I have decided to go with the modern brake conversion kit that Mustang Steve sells for both the front and rear.

Also I want to get a cheep set of steel rims for rollers before getting my torque thrust IIs, but I am worried that I will not have enough clearance as steel rims have a different crown construction.

Thanks in Advance !!

Dan
 

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I have 17X8 TTII's with 4.75" back spacing in the front and 17X9.5 with 5.75" back spacing in the rear. Tires are 245/45R17 and 285/40R17 respectively. The rears rub when I go up a driveway @ a steep angle. I have Wilwood disc brakes all around and global west upper control arm w/ 620 springs in the front.
 

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I hate to bring bad news but at least you have not purchased the Torq Thrust 2s yet. They might not work with the Mustang Steve conversion. They spokes curve back too much and hit the GT caliper for sure. I am not sure about the Cobra setup. I am doing the GT conversion and Steve told me Torq thrust 2 would not work. Look here:

http://members.boardhost.com/MustangSteve/msg/archive/1266361139.html
 

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I hate to bring bad news but at least you have not purchased the Torq Thrust 2s yet. They might not work with the Mustang Steve conversion. They spokes curve back too much and hit the GT caliper for sure. I am not sure about the Cobra setup. I am doing the GT conversion and Steve told me Torq thrust 2 would not work. Look here:

http://members.boardhost.com/MustangSteve/msg/archive/1266361139.html
Good point. Didn't think about that. My brother has cobra brakes on his 66 mustang, and his 17X8 TTII's barely cleared. We added a 1/4" wheel spacer for insurance. Although it cleared on his car there is no guarantee it would clear the next car because of the tolerance parts were held to in the 60's. If the OP likes the style of the TTII's, he might want to look at these wheels http://www.vintagewheelworks.com/products/wheels/v40/17x8. The spokes are flat like the original Torq Thrust and you can get custom back spacing if needed. We also had a set of these on my brothers mustang and they had approximately 1/2" of clearance. If set on the TTII's, I think you can use a set of re-drilled C4 corvette rotors and space the caliper accordingly. The caliper will move further away from the wheel with the corvette rotors.

Also another company to consider. https://www.streetortrack.com/pages.php?pageid=6&mode=preview?MMCF_13rotorarticle
 

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I went with the Torque Thrust 309 Traditionals. Did have to worry about the inward curve. Harder look in my opinion.

Good point. Didn't think about that. My brother has cobra brakes on his 66 mustang, and his 17X8 TTII's barely cleared. We added a 1/4" wheel spacer for insurance. Although it cleared on his car there is no guarantee it would clear the next car because of the tolerance parts were held to in the 60's. If the OP likes the style of the TTII's, he might want to look at these wheels http://www.vintagewheelworks.com/products/wheels/v40/17x8. The spokes are flat like the original Torq Thrust and you can get custom back spacing if needed. We also had a set of these on my brothers mustang and they had approximately 1/2" of clearance. If set on the TTII's, I think you can use a set of re-drilled C4 corvette rotors and space the caliper accordingly. The caliper will move further away from the wheel with the corvette rotors.

Also another company to consider. https://www.streetortrack.com/pages.php?pageid=6&mode=preview?MMCF_13rotorarticle
 

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Regular 17x8 Torque Thrusts work fine. I upgraded from drum to 70 disc and did 1 3/8" Shelby drop too.
 
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