It fits a bunch of later truck transmissions as well, 420, 435, 4500, T-18, and NV4500. He doesn't need to use OD. Its just designed to give more options. Lots of guys are looking to cruise on the highway now.
If the bellhousing has a 4.8 input retainer diameter you can only run the older 833. The larger diameter opens up possibilities while still allowing the strong iron case 833.
It DOES come with the adapter to run a 4.8 input tranny, at least mine did.
Last edited by GTX MATT; 03/27/15 06:38 PM.
