I hit enter too quick . my bird was 90% rust i removed way too many parts at once. i was afraid of having a crabbing crooked car. i used 4 laser levels (20 bucks each) pointed plumbobs and the frame spec sheet to check everything BEFORE i welded anything. i had the shop down the road from me throw the car on the frame jig i was within 1/16" or less in every direction. i spent probably a week just setting up and tripple checking everything. I started with the center line of the car, and worked my way from there.