66 Dart GT HT Whatsitgonnabe?

Well thats good to hear about the LCAs i doubt the 73 up are much different than your 66 ones. They even use the same ball joint. Its a fairly mundane part.

The major change in 73 was the larger "upper" ball joint and corresponding A arm which was the same joint used on the larger cars, and i think light pickup trucks and vans. As well as a larger diameter bolt pattern and an upsize to 1/2" wheel studs, the same as the larger cars, light pickups and vans. Probably for standardization, and deep discounts from OEM parts suppliers. I'd like to say power disc brakes became standard on A bodies in 73 however Ma Mopar doesnt disappoint on wierdness, some members have 73s with front drum brakes.

When you get them, match em up to your old ones and the let me know what the differences are besides the sway bar tabs. I am curious.