I'm about ready to flush my transmission with seafoam and install the new filter and the shift kit, but a friend of mine claims that everyone he has known with an older car that has flushed the transmission and changed the filter has had terrible transmission failure soon afterwards. I want to do this.....but I don't want my transmission to go out soon after doing it. What do you guys think?
This can happen if the fluid has burned and the general condition of the tranny is bad anyway. If it is being held together by the grit and crud inside, so to speak, it will eventually go out anyway. When you pull the pan first, check for brass or copper sediment, along with black goo also. If it is there in quanity, just bite the bullet and pull it out for rebuild, a flush and filter may help but depending on mileage and condition, would just be a band-aid fix for awhile. If it is working fine now, go for it and hope for the best, that pan inspection and filter condition will tell you something about it.
trans ??? usually what happens on a older trans that hasn't been taken care of, is you break all the old crap loose and plugs up the oil lines. That burns up the trans. Just change the fluid and filter. Then look at whats in the pan.
