Help with 1970 Dart restoration please.
So LM23 at the bottom is a Dart (L), 2 door hardtop (23), Medium trim (M) - which tells us this could ONLY be a factory Dart Swinger 340 and confirmed by the H (340) engine code. All this is also part of your VIN # in the corner of the dash. Door panels had a little padding to make the fake stitch lines stand out. If you need me to, I can take pictures of the door panels and the seat upholstery your car should have (all available from Legendary, but sometimes they mess up the applications in their catalog). No fender badges except for the little gold pentastar on one side (see photo). Quarter emblems are the same on ALL Swingers and the same emblems (DART and Swinger) also go on the trunk lid on a Swinger 340. I can make you some cardboard templates. Drilling the holes is tedious. Little plastic retainers go in the holes first, but if the holes are the tiniest bit off they can break the emblem when you go to press it in the holes. I'd get some old useless pitted emblems and use them to get the holes just right. I might have some pitted ones you can have for the cost of postage. I have an original Swinger 340 trunk lid I can use to make the pattern.
Here are some pictures of my 1970 Swinger (no 340). When I got it painted in 1998, they did not make the Dodge script that goes on the hood and trunk and I had a Swinger 340 lid and you could get the dart and Swinger script so I did that (even though it's not 'right'). The Dodge Hood Script and the dart and swinger script is available new and is even better than the original because the metal is different and doesn't pit (available from several sources).
So I think this is the list of trim for GT/Custom:
trunk lid edge trim that runs onto the rear fender extensions
stainless molding at the bottom edge of the side windows (outside)
wheel well moldings
the trim that the top of the door and rear panels fit into is Stainless instead of painted body color
They had the same instrument cluster as the LL Swingers (not a rallye cluster like you have ) but the bezels were wood grain and covered all the way over to and across the glove box door (LL cars are silver and only go to the far side of the radio/heater)
The glove box door has chrome "Dart Custom" script on Customs and even on all GTs.
Some of this extra trim could be had on an LL or LM Swinger at additional cost, but was standard on GT/Custom.
The seats (buckets on GT and Bench for Custom) are much nicer, usually two tone, and are the same seats for a Swinger 340, but only if you got bucket seats. if you had a bench seat Swinger 340 you got the low level seats like an LL Swinger.
What color is your interior and exterior?