Finding Centerline 72 GTO GM A body to square up rear end

[Troy Henderson]

Originally Posted by rallye bob

https://www.chevelles.com/media/68-7...ensions.15066/

A nice way to do it is to use the holes in the bottom of the frame shown in the link above. Then, you can drop multiple points down with a plumb bob to the ground on both sides. Measure across to get centers than take a string or laser and draw the centerline thru them.