What trans does the 82 300DT have and what other years and models will work for a swap? Is it possible or way to complex to open trans and replace clutches etc for a (transmission novice) DIYer? I was quoted 1700 on a rebuild, I've seen a used trans for 500 but of course that one could be just as bad as mine, wondering if opening it up and fixing it myself is worth a shot - I do have lots of tools and experience with other car repairs. Thanks.