I'm running a stock 46 3spd completely rebuild, new bearings, syncros etc. behind a warmed up 235 & 3.55 rear end. What can I expect from this trans. Will it last, or should I be looking for another one for replacement/parts or maybe a T5.

My truck is a weekend driver and I'm not hard on it, I just don't know how long I should expect this trans to last, after all it is 60 years old. I don't want to change anything just to be changing it, it works fine now.

Let me know what you think. Anyone have long term experence with this trans?

Thanks
George