INSERT PICTURE OF MAIN SHAFT SEPARATED FROM DIRECT DRIVESHAFT
Once the main shaft is separated from the direct driveshaft, start working on the direct driveshaft. First, you need to remove the snap ring holding the bearing on, along with the washer under it. Once that's done, you need to remove the bearing itself. Place the bearing splitter under the bearing itself (between the bearing and 4th gear) and press the bearing off the main shaft. I use a bit of Kroil before I press anything off; most things came off without a protest. Also recommend you put something under the press (I use an old blanket) to cushion the blow if the main shaft or whatever you're pressing releases suddenly.
And the scene of the crime -- here it is in my 20 ton Harbor Freight press. The press is money well spent; if you press off a few bearings instead of taking them to the machine shop, it pays for itself. They're $199 on the website and you can usually find discount coupons/codes, too. http://www.harborfreight.com/20-ton-...ess-60603.html
And here is the bearing. I secured the snap ring (AR part number 2200.24820) and washer to it so they would stay together. So far, all my bearings appear to be in good shape, but I'd like to replace them all anyway. Bearing is AR part number 101.00.13.223.00. Looks like these are made by FAG; FAG part number is 506575. Looks like SKF 611500 would work, too. Centerline sells them, but at $200, I'm hoping to find some elsewhere. https://www.centerlinealfa.com/store/1981
Also, Centerline lists a different bearing for the 2000 gearbox (I'm working on a gearbox from a 1972 GT Junior, but I have a 2L box to rebuild, too) that's $125.
More disassembly of the direct driveshaft. I removed the dogtooth gear snap ring and pulled out the dogtooth gear guts. That's 4th gear and the dogtooth gear for 4th that are still on the direct driveshaft.