[Bruce Lancaster]

"1949-1951 Ford per shop manual- 65-75#"
Go with a Ford spec like this if using a torque wrench. Ford used the same nuts and threads from '29---up into the 1970's (Model A's had capped acorn nuts, which changes nothing, all otheres entirely identical) on big cars and pickups.
If not using a torque wrench, use something fairly short like the original wrench that came with car to tighten, and keep something long like a breaker bar to loosen. If you reverse that you will have some bad moments next flat...