I have a 1969 Firebird with a 10 bolt non-posi rear end. I have been looking to change the gears (currently 2:73 I think) to 355 or 373 with a posi. Could you tell me where I might find the information to change them myself (mechanically inclined, but still have never attempted this type of work). Also I have been told that Richmond Gears and an Eaton posi is the only way to go. Cost is about 1250 Canadian, what do you think?
