My rear seal keeps blowing out ,where the the drive shat goes in.Automatic trans on 1995 Chevrolet Astro

the drive shaft seal was replaced and now it is leaking automatic fluid again.It seems like it was ok till we went over a bad dip on the road and then it started to leak again.

2 answers
The bushing at the end of the trans tailshaft may be bad causing the driveshaft slip yoke to knock out the seal.
the drive shaft yoke the bushing in the tail shaft need to changed with new parts