I change the trans fluid every 20-30k miles in a 3 part sequence. First, I drop the pan and change the filter. Then I fill it up, drive the car a bit and drain the pan again. I do this twice in addition to the initial drain and fill to complete a full fluid exchange. I don't like using the cooler lines to change the fluid, I prefer just draining the pan.

Clearance-wise, I'm not terribly concerned. The Fumoto valve is low profile and I haven't had an issue with it on the engine oil pan. The U-Haul pan has the drain plug facing backwards on the pan, unlike the dorman one which (stupidly) is facing forwards.

Edited by wrenchrat (05/03/21 02:04 PM)
2010 P7B - 129K, 9251 Hours. Black on Black, retired Washington Township Sheriffs Patrol Car from Ohio. Stock.