Jake did you get a T-19A/close ratio, or a T-19/wide ratio, BTW, nice work on the truck.
I recall on my T-19A, I had to use the T-98 clutch sleeve thing where the throw out bearing rides on. The T-19A sleeve was slightly larger at the hole in the bell housing at the mating surface.
I believe the trans is referred to as a wide ratio unit. Ratios are as follows: 6.21 1st, 3.09 2nd, 1.68 3rd, 1:1 4th, 6.98 rev. The trans was in pretty rough shape after I got it stripped down and cleaned up. I replaced the Reverse idler gear along with reverse gear on the main shaft. The entire 1/2 syncro assembly needed to be replaced because the dogs on the 2nd gear side of the ring were rounded over. New input and output bearings, new small parts kit, and a replacement reverse lock-out spring were replaced as well. The countershaft cluster gear is a bit rough as well. Several of the gears have pitted teeth. I'm going to take a chance and run the trans as-is for a while. If it starts self-destructing I will look for another replacement. Originally I was going to install the driveshaft drum brake to allow me to take smaller steps during some of my future upgrades. Turns out the 1st rear bearing carrier I bought isn't machined for the speedo drive and the 2nd one I bought isn't machined for the shaft support bearing retainer ring. "The juice isn't worth the squeeze" for me to get either of these housings to work so I'm waiting on installing the T-19 'til I have a 3:73 LSD Explorer rear axle (that I hope to getting from a local pick-n-pull this weekend) ready to install as well. I pulled the input bearing carrier off of a spare IH T-9 I had in the garage. The method of oil control between the retainer and the input shaft is a reverse corkscrew machined into the inner bore of the housing. I guess the idea is that the oil would naturally walk back into the trans as the shaft rotated. The newer retainers have a modern spring tensioned rubber oil seal. Another issue I found with the T-9 retainer is that it too is not machined for the snap ring retained input shaft bearing. While it wouldn't be a big deal to machine the retainer to clear the new bearing and snap ring there simply isn't enough casting to make room for the modern oil control seal. Scanning through pics of the T-9 build that is currently in the truck I see that it has an updated input bearing retainer. I will swap that one to the T-19 when time comes.
Along with adding the driveline and brake upgrades I will be adding EFI to the SD240 that is in the truck. I'll be using GM TBI injection parts from Astro vans and others. The ecu will have to be custom tuned to play nice with the IH I-6 but I suspect it will result in a much nicer daily driver. Once the driveline and Injection are sorted I'll be going for modern HVAC system. It was a major challenge keeping the windows defogged this winter with the old heater alone. While the insulation in the roof makes driving the truck in the summer more tolerable there really is nothing quite like feeling a blast of cold air on a hot summers day.
More updates to come. There will be a lot of mock-ups as I use this truck most days for my business and I need to keep the down time for the conversions to a minimum.