Hey guys.. i have a 85 cutlass with a olds 350 i bought off craigslist a yr ago.. i didnt know much about it other than it ran and drove... i always loved g bodys and this is not my first and im currently starting to work on them myself little by little, anywho the trans started slipping months months ago and i just parked it. I would step on the gas and the engine would roar n rev but it wont move. It goes in reverse fine, but stays completely still on Drive.. i put half a bottle of lucas in there to see if it did anything. Nothing.. im looking at new trannys to buy. I have a guy that will put it in for me i just want to buy a transmission that will bolt on with no mods... im trying to get it running so i can sell it.. i see there are long tail or shorttails i just dont want to buy the wrong one.. i didnt know much about the car when i bought it its a olds 350 the heads are blue. Any help will be appriciated.