Just bought this truck. Drive train whines like an old lady. Sounds like a turbo charger. Is there something about an old transmission or 3rd member that makes 'em do that? Seems to be coming from the back, but you know how sounds travel. Is this something worth worrying about?

While I'm here, I can't seem to get my 1986 Toy 4X4 to stop leaking at the power steering box. I've replaced the return hose 3 times (where it seems to be leaking), and still leaks. Is there a seal on the top where the return hose attaches? Also, the "new" '90 4 Rnr leaks at the power steering too, though seems to leak from much further down. Whats with Toyota and power steering?