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  • 1965 - 1973 Classic Mustangs -General/Talk-
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Back Space for 15X8 wheels on '70 Mustang

  • Thread starter Thread starter rbonitz
  • Start date Start date Oct 6, 2003
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rbonitz

New Member
Jun 25, 2003
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Oct 6, 2003
#1
  • Oct 6, 2003
  • #1
Recently bought a set of the American Racing "Torque Thrust D" wheels for my 1970 Mach 1 from a mustang shop in my area. I went with 15X7 for front and 15X8 1/2 for the rear - with 225mm front tires and 245s in the rear.

I assumed that the wheels would have the correct back spacing (4 1/2) because it was a mustang vendor, for a mustang etc. but I believe what they sold me was the standard wheel which has a 3 3/4 back space. The rear tires stick out too far, just don't look right and rub on large bumps.

I see that you can buy the Torque Thrusts wheels with a custom back space
http://www.wheelsforless.com/search_result.asp?Product_ID=2055800 - I guess that is what I'll have to do...

A couple questions...

Any one else running these wheels on a '69 or '70 - did you spring for the "custom" wheels?
How do I measure the back space on the wheels I have and will a 4 1/2 inch back space definitely work with these tires?

Any help appreciated....
 
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rbonitz

New Member
Jun 25, 2003
29
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Oct 6, 2003
#2
  • Oct 6, 2003
  • #2
Just found out that the Torque Thrust "D" is a one piece wheel with fixed back spacing (3.75")... The URL I posted is for a different, two piece wheel (still from American Racing)- it's slightly different with a polished lip - You can order that one with custom backspace...

Wish I had known this before I bought the "D"s....


Ray
 

67GTCOUPE

Founding Member
Dec 20, 2000
653
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0
Land of Ice and Snow
Oct 7, 2003
#3
  • Oct 7, 2003
  • #3
rbonitz said:
Just found out that the Torque Thrust "D" is a one piece wheel with fixed back spacing (3.75")... The URL I posted is for a different, two piece wheel (still from American Racing)- it's slightly different with a polished lip - You can order that one with custom backspace...

Wish I had known this before I bought the "D"s....


Ray
Click to expand...


Ya, I bougth American Racing S-200's.......same damn thing on my 67 coupe! Rubbs in back and front...changed out front tires to smaller size...ok now, but rear rubs over big bumps.

 
6

'69Stang

Founding Member
Sep 28, 1999
1,130
2
38
Metro Detroit
Oct 7, 2003
#4
  • Oct 7, 2003
  • #4
Sorry to hear that guys. That is just piss poor product development in my opinion. If you decide to got to the Magnum 500's 15x8's they fit fine.
 

jasonn

Founding Member
Sep 26, 2002
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By Rochester MN
Oct 7, 2003
#5
  • Oct 7, 2003
  • #5
I am looking at the same question. I am going to the pro stars though. So exactly what backspacing is needed then??
 
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xjmd2007

New Member
Dec 3, 2003
2
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0
Texas, USA
Dec 5, 2003
#6
  • Dec 5, 2003
  • #6
Magnum 500 wheels

'69Stang,

Where can one buy a set of 15 x 8 Magnum 500 wheels??

Thank you!
 

pabear89

Active Member
Apr 15, 2003
2,126
0
46
High in the Hills of So Ca with the Voices in My H
Dec 5, 2003
#7
  • Dec 5, 2003
  • #7
I am looking at the same question. I am going to the pro stars though. So exactly what backspacing is needed then??

Depends on what esle you have, with my rear sway bar I needed shorter backspace.
I think the magnum 500 have 4 3/4 backspace, and the tires would rub on hard corners.
So i swapped them out with Cragers with 4 1/2 space.
Click to expand...
Where can one buy a set of 15 x 8 Magnum 500 wheels??

Check any good Mustang Supplier, but be ready to spend $.

PB
 

68GEETEE

5 Year Member
Nov 21, 2003
481
5
38
Texas, USA
Dec 5, 2003
#8
  • Dec 5, 2003
  • #8
thanks for the post, I was strongly thinking of the same wheels for my Stang, would have run into the same problems.
 
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