what? and how much rearend fluid

[dusted800 1]

Have a 77 C120 that I am going to change rearend gear oil What weight should I use and approx how much will it hold(it is an 8 speed) thanx. wnk.

[Buzz 502]

It should hold two quarts of SAE 90-140 A.P.I. Service GL-5 gear oil according to the book.

[dusted800 1]

Ok thanx buzz