I just picked up my first K5, a 76 model that is VERY rough. Ive got a set of 36" Swampers that are just begging to go on this truck, but I need advice on my axles first. I recognize the front axle as a D44. It is missing both of its hubs, and pretty much needs rebuilt. The rear axle appears to be a 12-bolt. Now, I do not have much experience with this axle. I know my buddy's Camaro had one, but I hear its different. My questions are... 1. Couldnt I take hubs off of any other vehichle with a D44? 2. Does the 12-bolt in my K5 share anything with the car 12-bolt? 3. Will the 12-bolt hold up to 36x12.5's and a locker? 4. Is there an easy way to convert the 12-bolt to discs? 5. Is there a carrier break on 12-bolts? 6. Where can I get some gears at a low price? I know I can get D44 gears for like $120, and I dont want to have to spend too much more for a set of gears for my 12-bolt(that is if its strong enough).