I have a SC400 which I will be installing a new dragon torque converter so while I was swapping the TC I was planning on changing from Toyota ATF fluid to AMSOIL synthetic ATF, changing the tranny filter and oil pan gasket anything else I should take care off?

And since I’m also supercharging my SC I’m planning on adding a tranny cooler would it be a hassle to add later or should I just install it now also?

How much is it tranny filter oil pan gasket @ the dealer?
How much ATF will I need?
Any recommended tranny cooler besides B&M?

 

since ur already there. replace the main seal

 

a341e tranny dry fill takes 8.7 quarts.

the filter is wire mesh and is easily cleaned, no need to replace unless it is damaged.

the gasket is fpig material, no paper/rubber gasket involved. you can pick up the gasket goop at any local parts store, just make sure you clean off the mating surfaces well before applying the sealant.