Chrysler changed from the 22.5 to 15 degree pitch tooth in 1994 on the A518. I worked in the transmission parts/converter industry and we sold a kit that had the OD Sun Gear, the OD Planetary, and the OD Annulus(Ring) gear to make the changeover from the early to later design. The kit fits them all, including the A500. If you're going to get into the OD section, there is underneath the Overdrive hub, a compressed HD spring that will do YOU personally damage if you don't release it properly. You should use a press to do this job. The spring is compressed to somewhere around 600-700 pounds.
