I have not checked the past post for how to do this( previous mistakes made and little hints that make it go easier) so any info on step by step process. I have a 78 electric windows so no windoe handle to fool with but the porper way to dismantle to get to the lock and glass snubbers and I think a rod is not connected to the door lock knob and the door key/handle so might be some work to do.  Any photos or instructions would be a great help...Thanks BB78

You are probably ahead of me on the panel removal but if not, the panel itself is not difficult to remove.  There are 5 screws total, I think, holding your 78 panel on if its like my 82 and I think it is.  Two of the screws are in the bottom of the armrest. The third screw is clearly visible near the top of the panel close to the outside door handle.  Forth is on the lower left corner of the panel . The final screw is INSIDE of the map pocket on the door panel.  Once the screws are off the panel can be pulled out slightly at the bottom and lifted UP to lift the panel off of the door.  You will need to push the panel toward the front of the car slightly to allow the lock knob rod to clear the hole in the door panel.  IF you have power door locks, dont lift too much, only enough to get your hand behind the panel to the power door lock switch.  The large flat plug that attaches to the door lock switch can be stubborn to get off, just be gentle and work it back and forth to pull it from the prongs of the switch.

 

It's been a while since I have worked on my door lock and have NO pics of the interior of the door panel so Im not going to be much help on the interior part.  Once the door panel is off most of the guts are visible with the window UP and out of the way.  The snubbers arent difficult to get to and the connecting rods just need to be traced and determined if they are still attached.  There is an access panel that unscrews to allow more access to the lower portion of the door interior.

 

but then the next question Yes there is an opening to see the back of the lock and to see the 2 bolts from top that connect the door release know from the top and the push rod 2 bolts holding this in. but I do not see any screw or bolt holding the attachment where the key cylinder would attach to .. so how do I get the next setion of the interior door off???? Yes I see several screws but they appear to be holding the window guide rails and I dont want to fool with them and the lower black panel for I guess the pwr window motor and electric panel , so how to I get to the access of the key lock to either put a new key lock in and attach the alarm harness and attach the cylinder pawls that will turn the door lock pushrod when I turn the key as its just spinning now.. how do I get the next layer off withoout getting into trouble... I need to get a push rod  connected to the key holder and see if I can get pwr to the alarm wires..Thanks sorry so long... boy I love this corvette stuff but should drive it more. please help???

 

Godd luck

 

Paul