I'm working on a 46 2n for a customer, doing a complete overhaul. Got the old sleeves out and measured the wall thickness (.090) and ordered. The first 4 pics are the old sleeve dims. It has a wall thickness of .090, and 3.2 I.D. and a 3.378 O.D. The new sleeve is 3.195 ish to the inside, and 3.365 O.D. They have a wall thickness of .085. The new sleeves just fall right in. Not sure the deal here. Anyone run into this before? If they had the actual .090 thickness, it would fit and be .004+or- shy and I could use a sleeve retainer compound and not be worried. But these will fall in and move side to side a bit before the rim comes down.