a833 cast iron overdrive countershaft

The front hole is oversize in the aluminum cases, and the pin is allowed to rattle around in the hole which fills up with gearoil. This is supposed to suppress rattle. The pin hole is then step-bored to receive a welsh plug so the oil stays in the tranny. Is it lame? I think so, but it seemed to work on the slantys and teeners that received them. When I put one of those behind my 367HO, I had a local machine shop enlarge the hole and press in a steel bushing with a bit of an interference fit.They did a good job.AFAIK the only differences in the pins was that the O/D pins are a tad shorter to allow for the expansion plug.
As to the C.I. cases, I cannot recall if they came with the wallered out hole.I would suspect that if there is no welsh-plug counter-bore then no anti-rattle technology,lol