Whoa! Yea man! Not that the trans is toast but I would only use it for a 100% EZ driver. No performance intended. Like grand-ma's light right foot driver. Once you start pumping it up or drive spiritedly, it is not going this be a happy trans.
That is ether a rebuild or replace because that would only sit on the side lines here for me for a just incase I brake crap emergency useage.
Here is were you decide if it is rebuild time or upgrade.
