1990 Chevy k1500

124,xxx miles. I drive this daily as my main work truck miles will go up. 350 efi non vortec. Nv3500 5 speed manual. 4x4

As you can see this truck is cosmeticly speaking , in horrible condition. Paint is chipping on the bottom and the cab corners are rusted out. The ceiling sags. It sat outside for all of its life never garaged..

There is some noise coming from the tranny area. I suspect a throw out bearing.