I have a '71 Road Runner that I am restoring. The previous owner was going to clone it to a 6 pack car and had a Dana rear in the car. I'm going to put an 8-3/4 rear in it. Can anyone tell me how I can determine what the Dana came out of? Here's what I have as far as numbers and measurements. On the rear of the housing on the top right is a casting number that is C34155. On the front of the axle on the passenger side is a date code, I think - 337-69 (337th day of 1969?). Looking from the rear, there is a lube tag at 11 o'clock and a ratio tag (4.10 gears) at approx. 12:30. It does have a pinion snubber. It measures 54" drum to drum inside and 54-3/4" on the backing plates. Is this enough info to ID it or what else do I need? Thanks.
Barry