Just had my 350 turbo rebuilt and now when i park for awhile or im on a incline it drips tranny fluid from around the drive shaft yoke where it goes into the back of the transmission. The person that rebuilt this said its a common problem with those , and that they would put silicon were a weep hole is . Is this something that has been addressed on this fourm before ? If so is it a easy fix ?? Thanks for all the help .