Door Jamb measurements 70 Challenger Drivers side

[HP2]

I'm wondering how much variation was allowed in production.

Up to .125"

[BFM_Cuda]

The panel has to match the curvature of the door, moving it in or out 1/8"  shouldn't be a problem..
When you line up the door to the top & bottom of the quarter, then adjust the door to match the top area of the fender (which is a set distance due to the hood setting the location of tops of the fenders) it's not uncommon to find the bottom of the door at the front of the rocker is out 1/4" or more....  Most cars with that issue wind up with the fender following the door but the fender now is offset to the rocker....

When replacing panels you have the ability to correct those issues....  So bolt the hood on, bolt the fenders on, line up the doors to the fender & rocker the set the quarter in/out top to bottom to match the door....

Good advice here...

I would also suggest having the two rubber bumpers in the door and try to adjust the door so both of the bumpers contact the door striker panel at the same time. You can use them as a guide where the back of the door will rest when closed. Then adjust your quarter panel to match it.

[7E-Bodies]

@tparker and others....I just measured my 70 RT and came up with identical measurements. Good thread!