So a couple months ago I dropped a driveshaft on the freeway going about 130. When I pulled over the back of my tranny was ripped off and laying about 30 feet behind my car. So since I need a new transmission anyways, how hard would it be to do an A4 to M6 swap? Would a transmission out of an LS1 car fit in my LT1 or would I absolutely NEED to find one out of an LT1? And are there any good companies that make a reliable transmission that could hold up to about 450 horsepower and be good with mostly street driving and a little bit of track driving? Thanks for any help