ok here it is.Is the frame from a 65 tempest/gto the same wheelbase as a 65 chevelle/beaumont? What are the differences in length/wheelbase if there are any?Wikipedia says the cars have a 2 inch wheelbase difference but I think experience will have the correct answer.
Oh my! You couldn't let it go! I went out with a measurement tape and yes the mounts all match except the rear section under the trunk. A body GTO and A body Chevelle are the same 64-67 except the rear section like a El Camino. Man that frame is pretty.