I need help. It leaks at the seal at the driveshaft, won't hold much fluid. Local shop says they get a complete overhaul kit for $ 80.00, and five hours work, total cost to me ~$ 400.00. Ouch! Any suggestions? Is this something a DIY could do? Once I pull the front axles and driveshaft, can it be that hard? Any special tools required? Any suggestions on where to buy the rebuild kit? If have looked in the local, usual places and don't see it. The chassis is a 1979. When I popped the cover, it was packed with sand. I cleaned it all out but am leery about taking it out in 4wd.