It looks like the same body but the VIN #'s won't be right
yes
The trim panel should be held on with screws around the edge. The instrument panel under that should be held in with screws also. Unhook the speedometer and the wires plugged into it.
how many 1969 pontiac firebirds were painted espresso brown
Pontiac Grand Prix
The most popular car from 1964-1969 was the Pontiac GTO.
See link
1969 was the first year for the Trans Am.
Rpm Red line 1968 Pontiac firebird 400 HO
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1969 Pontiac Firebird
1969(?) Pontiac catalina