I check the trannys over for visible internal damage , but I don`t disassemble them or test drive them , they do not come witha belhousing , when I find them they are often behind /6s & the bel will not work , I can ship it , $30 to crate it , I live north of Montana in Alberta, I have no use for the 904 & I never do automatics , The console doesn`t need much modification , just needs the bottom lip trimmed where the shifter boot sits , but you need a different top plate for the console , a friend was going to machine some on a CNC , not sure if he ever did but I can find out Pedals are tough to get , the have to come from a B or E body & If I had 10 sets I could sell 20 , there are the hardest piece to get for the swap