My trans has taken a complete shit on me, and I don't have the $1500 right now to drop into a rebuild, so I'm thinking about just picking up another GN trans and swapping it in to use while mine is out for rebuild. I found a guy in Phoenix (2 hours away) with what he claims is a Grand National trans. He doesn't know much about it, other than it came from a wrecked car and he was going to use it for a hotrod project. He doesn't know year/mileage, which raises some red flags to me. My car is an '87 T, and I know I need the BR series trans with all the factory goodies, so would a trans from an 84-85 GN work for me? Or do I need to stick to the 86-87 models? And what would be a fair price for the trans? He's asking $400, I'm hoping to lowball an offer around $200, just because it's really unknown just what exactly it is, or if it has the brf vb or d5 converter. Any words of wisdom or advice would be greatly appreciated