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

CMcAllister · 09-10-2025, 10:36 PM

I would drop a string line from 4 or 5 different places on each side of the frame, from front to rear. Obviously use the same point on each side - suspension mounting points, factory locator holes, etc. Mark on the floor and find the center. If they all don't fall on the same line, double check your locations. And hope the car hasn't been hit.

Driveline is offset to the right. Don't recall the measurement but should be parallel with the chassis centerline.

09-10-2025, 10:36 PM	#3
CMcAllister Senior Member Join Date: Sep 2006 Location: Fulton County, PA Posts: 623 Likes: 17 Liked 930 Times in 264 Posts	Re: Finding Centerline 72 GTO GM A body to square up rear en I would drop a string line from 4 or 5 different places on each side of the frame, from front to rear. Obviously use the same point on each side - suspension mounting points, factory locator holes, etc. Mark on the floor and find the center. If they all don't fall on the same line, double check your locations. And hope the car hasn't been hit. Driveline is offset to the right. Don't recall the measurement but should be parallel with the chassis centerline.