Transmission service questions

[Tony_Urwin]

I posted a few weeks ago that I had some ugly noises in second gear, almost like clutch chatter. After driving the truck for a few hundred miles, the grinding chatter only happens part of the time.

I decided to drain and fill the gear lube in the transmission, since I have no way of knowing when it was last changed.

My questions are:

1) Do I fill it with 90 weight geat lube?

2) What is the capacity? Should I just fill it to the plug on the side of the transmission case?

[Merle Coggins]

Answers are;

1. Yup. SAE 90, 80w-90, or the like.

2. Yup. That's also the level plug.

Merle