where's the flex plate cracking? can't say I've dealt with your prob.
non lock up RH trans.... that was back in the era where a stick was actually better.
I'd skip straight past the Getrag those trucks were born with, and hunt down a NV5600.
I don't get the love for the 1st gen... but to each their own. The ones with the bucket seats were nice. I always believed that was Dodges answer to the incredibly crappy ride of that era of trucks was to put a better seat in it