I have a 1951 3100 and have a different 3 speed transmission and rear axle. The case number is GM 15, 3354726, E245 and the tailpiece is GM 8, 8866722, E226. The rear diff is another story. I looked for numbers but only could find the front passengers side has a F1 (stamped) and the front drivers side has a cast 331 and a clock face. I’m hoping members can help solve the story of this trans/rear axle. thanks
