46re clutch pack specs
I haven't done a 46 but I have done a bunch of 727's and since the front end is nearly the same I'd think the clutch clearance would be also. For the rear clutch I shoot for .040~.050" clearance and for the front clutch I use the .012~.015" per clutch disc rule. In other words if it's a 4 disc drum .048~.060 is optimum. All measurements are taken with dry clutches of course. Sorry but I don't know what the OD clutch specs should be.
Do you have an assortment of selective snap rings? Which clutch are you having trouble with?