machining

Currently have my intake and exhaust manifolds out to replace gaskets and hopefully improve a low vacuum condition on my 86 FJ60. Having trouble to find a machining shop that knows how to handle the assembly to clean it up and get the full surface flat. Mixed material between the exhaust and...

Is it worth trying to get this out, or do most everyone replace with new?

I'm gonna be home to put a new clutch in the my landcruiser. Found the attached Clutch instructions that may apply and searched the FAQ? What is the step machining required? AISIN specs out +0.5MM step. Do I need to have the machine shop Resurface clutch contact area, and bring down the outer...