99 Ram trans problem

I recently had some similar trouble with my '98 46RE with the addition of a few other symptoms (ie. occasional bucking on the freeway, etc.). Initially, I noticed under a little bit of acceleration on wet pavement in reverse or drive there was a strange metal clunking sound. Either way, it didn't sound good. After checking the codes, I came up with a code 11 or 17 which indicated the speed sensor on the back of the tail shaft. I replaced it (cost about $20 at the dealer) and most of the issues went away. I haven't gotten on it on wet payments since so I don't know if that took care of that problem. Good luck diagnosing it.