Thanks Chevychip
I should have said that the doors are draging at the bottom of the door at the very back where the latches are. Not at the front of the door.
The Chevrolet repair manual(page 243) says to add spacers at the rear of the vehicle to eliminate the front doors from saging down, at the back of the door. This just seems wrong unless you are tilting the windshield post forward
when you add spacers at the back???
I know exprence is more helpfull at times than what is in print.
So thanks for the reply.
Thanks,Max