Okay, so it's definitely a '76 Overdrive transmission. Next question is on tire sizes for use with this transmission. I have a complete set of stock 14" wheels. What tire size and rear end gears would be best for a car I can drive at interstate speeds without revving the engine too much, but still be able to perform well off the line? I'm also interested in posi-trac, which I do not currently have. If anyone has this item laying around I'd be interested, either a complete rear end or just the differential.
