hope your day is full of flatness

Getting ready to put a set of ujoints in the front axles in my truck ( for the third time since I've owned it). I've used Moog in the past, but they only seem to hold up for a few years before they seize up. Would the GMB's be better units for a driveline that only occasionally gets used?

Does the MPI manga manifold need to be removed to remove the brake booster or call you pull it out with the manifold in place?

I need to pick up a complete assembly (not just the mast) for the car I am restoring, 88 widebody. The original part number is MB510795. I would love to get new, but a good quality used one would be fine too. If anyone has one please reply or PM me.   Thanks,