Thanks. I apologize of taking mbaird's tread. This transmission issue is one of many upgrades I have planned. I have been wanting to start a thread about my barracuda and just haven't gotten to it. To many monkeys on my back, and they're now morfing in to male lowland gorillas. Not fun. I am looking to switch out the main shaft, tail shaft, and synchro assembly. The interlock side cover I didn't want to use. I down shifted my '71 340-6 'Cuda from 3rd into 2nd when entering a turn fast and it locked in both gears, makes for a fun time. Anyways thanks for the input.