Hello Kent,

Thank you for your reply and advice regarding the hardware... I will paint instead of prime not to get in trouble. As for the lubricants, things can be confusing since much has changed in 80 years and what was available then is not available now... Can we start by saying that the rear end axle and bearings needs:

1- Mineral based oil

2- Hypoid Oil (EP) extreme pressure

So I found:

Mobilgear 600 XP150, SAE 90W

https://www.grainger.com/product/MOBIL-Mineral-1MUC7

https://www.mobil.com/en/industrial/lubricants/products/mobilgear-600-xp-150

which seems to have both characteristics... There is also a SAE140W if better suited for the rear end and bearings in a hot climate. I'm just trying to select the right oil for the truck which it is not easy...


Philippe Jeanneau