First time I changed the transmission fluid in my 1996 caravan. 1st time was an auto shop in 2006.
I have my own ball of ferrofluid! Not sure if that’s good or bad. It is a Torqueflite 31th transmission :P
Last changed at 54,000 miles and now 80,100 miles / 10 years.
This stuff is a half inch thick. Notice the sparkly oil.
All clean and replaced filter, gasket, and new ATF+4 fluid. I never had a problem with the transmission although lately its been vibrating while waiting at red lights unless I put it in neutral. Now it doesn’t vibrate anymore and feel like I have more power.