What was in your truck before? I have a C6 that's yours if you pay shipping and worked well when installed. It's a 90 so it probably had the E4OD? Your best bet might be to get an E4OD rebuild from Brian's Truck Stop in Arkansas, you'll have a bullet proof E4 but it ain't cheap. You can use a manual like that out of an F150 but the complication is that you will need to acquire a diesel bellhousing since it is unique. You've bought yourself a LOT of work. The only way to make it worthwhile is to find a bellhousing for cheap and then find an 87-91 F-series manual to be your parts mule. In addition to the tranny plus diesel bell you'll need a clutch, flywheel(diesel specific also), and manual transmission tunnel pan 4X4 if thats the truck you have too. Better still would be to find an 87 and later 6.9 or 7.3 with a ZF5 manual, as you'd still have overdrive and the manual you want and your parts mule. If you want el cheapo and you don't care about OD that C6 is free except for the shipping, but in the interest of full disclosure it probably will cost $100-200 to ship it up to WI and it needs a VRV(dealer or junkyard only and $100 or so) to work.
