I know on my 37 it states that the battery ground cable bolt hole is where I fill my torque tube bell that encloses the u joint. I find the manual for my year in pretty vague and purchased a Audels automobile guide copy right 38 to 47. Audels pub., awesome manuals back in the day. It covers much more stuff in detail, and many makes and models. Kind of the bible for anyone who worked on their own stuff or was a garage mechanic in the day. It even covers diesel motors, jeeps and tractors. It is black, looks like a bible and has 1607 pages of information to dive in to.
