O.R.C.

My NAA has the old 1 1/8 pto.. and I have the orc that adapts up to the 1 3/8.. it has about a quarter inch of edflection at the end of the stub.. no more.. 1/2 inch would make me replace it..

If yours is the case with the small tractor stub, and the larger female sized orc.. run to TSC and grab a stub extender. It is a sleave that extends your old 1 1/8 pto stub out to the normal length of a 1 3/8 stub.. and the correct diameter. It is about 15 bucks. This works fairly decent. Avoid getting the small sleave for 3.99 that merely bushes the pto stub up to the 1 3/8 size.. it is really too weak for rotary mower use. The other one I mention is also on the edge of marginal.. but it has a tad more metal on it and should be ok.. especially on a 4' hog.

Make sure you still use the correct shear bolt etc to protect your driveline from shock loads.

Now.. if your pto shaft is simply so rusted out and worn down that the orc is loose.. get a new shaft for a hundred bucks.. slide out/slide in. Other possibility is that the orc is wore out like Dell mentions.

Soundguy