Are there any differences in the interior side panels for the R/T vs the TA version of the 1970 Challenger?
Nope, not as far as I know :dunno:
Rally Dash is std on R/T optional on T/A.. Only difference..
For the first couple months of production there was no woodgrain inserts in the interior door panels, but by the time T/A production started all Challenger door panels had the inserts. But you wouldn't want to use the non woodgrain door panels on a T/A restoration.
It may not matter for what you need; :thinking: but newer and some reproduction Challenger door panels also have differences on the back side; the 70 panels came with 7 lower clips (holding the panel to the door) and the newer panels had less.
The upper bracing that locks in to the top of the door is also a little different. Newer panels will fit with these minor differences.
If you stay with a 70 panel, it will not matter.