Any advice on putting the A-833 in?

Don't crank down on the four transmission mounting bolts to force the transmission to seat flush against the bellhousing. If it wont slid up flush by just pushing it, and you feel the bolts start to require a lot of torque just to pull it with-in a 1/3 of an inch or so from seating; you have a problem. I've had to shorten the input shaft of the transmission before because the crank was not drilled deep enough.