There's been several threads about how to remove the frame - but none about how to put it back on!

I want to jack up the body of my car about 6 inches to replace the brake and gas lines. I'm planning on replacing the body mounting bolts with bolts about 6 inches longer so I can lift the body and later have it drop back down with the bolts and body mount nuts still matching up. This way the body will never be unbolted from the frame. However the nuts - say the ones in #2 and #3 are in nutcatchers that can move around a little, so it's possible that the body won't drop back exactly in place. For example, now the steering column shaft exactly aligns up with the steering box input shaft. Also the radiator frame attachment bolt holes (body) exactly match up with the frame front crossmember. When I lower the body, I'd like to know if I can keep the current alighnment.

The frame has two alignment holes; one near the drivers #2 mount and one near the passenger's #3 mount. I would guess that at the factory there's a pin inserted in each hole and the pin protrudes upward to go into corresponding holes in the body birdcage. I would guess that the birdcage is dropped down using the alighment pins. Then after the body is bolted down, the pins are then removed.

Will use of the frame/birdcage alignment holes drop the body exactly into its' current position. Has anyone made some alignment pins from dropping the body back on? How do you use the pins? The alignment holes can be seen in the AIM; drawing UPC 1 Sheet G1 (1968 AIM).

Thanks!!