I have a '46 pickup with "53 235.
After installing an Okie bushing in my torque tube, I went to a car show that was 100 miles away. Everything went well with the gear oil and the seal. Thanks for all of the advise on this great forum.

I was going on mostly back roads at about 50-55 mph. Cruising well but maybe a little above its "comfort zone".
When I got to Sea Isle City, NJ, I checked the oil and I was down almost a quart.(but the undercarriage is well lubricated smile )
I'm fairly certain that's if it's burning any oil it is minimal. I do have a a small rear main leak but almost all of this leak is coming from the draft tube. There are no baffles in the tube itself and I really do want to keep this truck as stock as possible. I have seen, somewhere, about installing some sort of device/baffle/mesh in the tube to slow this down. I'm not really keen on the pcv valve idea as I promised my Dad that I would keep his truck as stock as possible.
If I can do something before the return trip in two days, I could get a good test trip when going home.
Any comment are welcome.
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1946 1/2 ton Chevy Pickup
1954 235 cu in
3 speed on the floor