Truck Dana 60

I get the feeling there's no "they" I think it's just Cass, but in the few times I have called he ether answered or called back if I left my #.
I guess I'm like Columbo but I'm forgetful and "just one more thing" He answered all my uneducated questions and left me well- more educated. Even when I called a month later when I actually had the $$ he walked me back through everything. Have a friend I walked through this and says he's only into his 4.56 spooled D60 $850.