85e150six4mtod Thank you for the info on the 2 speed axle. I feel like I have an idea of what is going on now. The vacuum line isn't attached so no wonder it is stuck in low.

NumberDummy I had found this Y-Block Casting Numbers
a few days ago and was hoping the casting numbers would match. I've tried to find a NOS manifold without much luck. The right one is the worst off but they are both cracked. I plan on hitting up the junkyards this week. I'm sure they will have some. I've also considered getting headers or the Ram Horn manifolds but I don't really feel like running dual exhaust at this point. Decisions decisions.

Thanks for all your help