i bought a 1350 pto on accident and dont need it.  $45 shipped. 

id post a pic but its a circle with some holes in it. 

I need a pto but don't know what 1350 means.

1310 - uses 3/8-24 bolts on 2" x 2-3/8" centers
1350 - uses 7/16-20 bolts on 2-3/8" x 2-7/8" centers

basically depending on the size driveline you have you need the corresponding PTO adapter.  the 1310 is the smaller of the 2, usually more common.  just measure the distance between the holes in your driveline and look at the bolt size. 

Thanks Tom, thanks Kaotyk. It is a 1310 that I need.