you could have the VDD hooked up to a constant vacuum which would have the front end engaged at all times eventhough the t/case is in 2WD and that would add an extra load to the engine, and then there's the boost regulator (waste gate).
Not if it is manual hubs right?
I really only to a small amount of wheeling in it, and camping. I don't need it to be fast really, just enough to churn the 33's that'll be on it eventually. (It'll be my wifes Anywayz). My trail toy is the full size Cherokee.
I really think is a major vacuum line as you suggested. It may be a combination of things. It has really been worked over, (In a bad way) by the previous owners.
I am gonna take a pic or 2 of a couple things and see if you can tell whaat and how to adjust them...my manual says nothing about them.
Thanks again for your input and time.