the output seal on my trans is leaking. i can grab the driveshaft(right by the trans) and see it move side-to-side a little bit. the output bushing must be wore out already. i only have 24k miles. i also feel drive shaft vibration under load.
is there any upgrades to the output bushing? maybe a roller bearing upgrade?

My seal had also gone out around 25K. I put a new one in and it has been good now for 30K. I cannot remember how much play there was.