65 GMC Dana 44

[gfunk6907]

Hello everyone. I'm a newbie to this and this is my first post. I have a 65 GMC 1/2 ton shortbed fleetside. I am in the process of a frame off rebuild. Starting at the back I have lowered it 5 inches by way of shackles and de-arching the leaf springs. Now I need to get some work done on the Dana 44. I'm in need of some help in this area. I believe its a Dana 44. I want to have it overhauled with new gears and possibly have disc brakes put on it. Is their a disc brake upgrade kit for this? Anyone know of a good place to have the rear end overhauled. I'm in Northern California. I will be running a 2005 5.3l with a 4L60E Transmission. Gear ratio recomendations ? About how much $ can I expect to spend ?
I also have an extra front bumper in great shape from this truck for sale if anyones interested...