I'm planning on putting 275-60 rear on 15x8 rims and 235-60 front on 15x7 rims. I am also going to install the Hotchkis spring kit (front & rear) which is supposed to be at least 1" lower than stock. If you have a 68-72 model with a similar setup please post a link to a picture. I've heard 4.5" backspace is the way to go for the 15x8 on the rear. What is best for the 15x7 on the front, 3.5?

My front end should be quite a bit lower as I have 225-70 on there now with stock springs.

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72 GMC Sprint
NECOA (http://www.necoa.org) #295

Check out my 72 Elky sig below.....I am running 15x7--4" bs with 275/60's on the rear....235/60 in front on a 6" rim. And yes, it has been lowered!!
Brian

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71 Chevelle
http://photo.starblvd.net/~CHELK/2-3-4.jpg
72 El Camino(71 front)<A HREF="http://photo.starblvd.net/~CHELK/2-1-1.jpg" TARGET=_blank>
http://photo.starblvd.net/~CHELK/2-1-1.jpg
</A>