I think it may be time for a new vacuum pump/power steering combo. I’ve noticed in the morning my power steering is stiff for a while and it takes like 30 min. driving before my exhaust brake works. Also when I go down a long grade I intermittently lose my exhaust brake. I did the Gould seal repair a few years back when it was leaking and I wish I would have done the vacuum pump rebuild. Has anybody done this and had good luck? I heard new ones are kinda spendy. Thanks for the replies.