Funny you should ask
The Allison went to pot while sitting, suddenly no reverse! I suspected the GearVendor OD unit, but a transmission shop pulled and rebuilt the nearly new Allison. I put it on Craigs list, got a buyer, credit union approved the entire price for loan, buyer chartered a plane from Texas City. Got here, loved it so we took the pilots back to the airport in it and back to my house to give him the title. While turning around in our cul de sac had to back up, no dice, stuck tightly in drive!
I towed it to the house with my minivan and got under it this morning. They routed the 36 ft shifter cable on the wrong side of the speedo cable, making it rub the parking brake drum! Welded the cable to the housing. Buyer bought a ticket back home on SouthWest. What a bummer.