[David J]

What you did there is what I call move the top of the cowl forward . The cowl is of course the attachment point of the doors so they come along with it . If this cured all problems you should have had a tight top rear of door to cab vertical gap before fixing it . Another term that is often used for this type of issue is that your door opening was slightly " diamond " shaped . Really simple stuff if you understand it . Modern frame printouts have all the dimensions for checking door openings so it is really no mystery . Glad you didn't start bending hinges and whatever before really understanding the problem and congrats on your good results .

Originally Posted by Max

All done, no problem really.
Bolted the body down onto the mounting blocks and jacked the cab diagonally forward, with the doors open, this lifts the doors at the rear and now the swage lines line up. evidently these pickups suffer this quite often due to the mounting blocks breaking and falling out, the cab then sags and after fitting new mounts the doors do not line up.