what is best ?

[WOLFMANmike]

hey guys pretty soon im getting a new trans from a buddy of mine it was rebuilt not very long ago its a TH350 and i have a mostly stock 350 SBC just your basic bolt ons carb intake HEI but internals are all stock . anyway with this new trans i want it to last me a long time so i want to know what do all of you think is the best external trans cooler ? right now i run at 3000 rpms on the freeway with a 31 inch tall tire at 70 on the GPS speed o app on my cell phone lol and im going to be changing tires to 275/60r15s which im sure is going to increase my rpm and also before installing said trans ill be putting in a new TQ converter / stall most likely a 2700 stall by Summit Racing because at some point down the road ill be putting in a cam too . now i know most times a post such as this should be in another section of the site . but im asking here because i want to know from other owners of our trucks what you guys use and think i should use as i know Ive heard choosing the trans cooler also depends on things like the GVW of the vehicle and other stuff so since we all have mostly the same trucks im asking here . also i should tell you my truck is my driver and a c10 long bed so she will see miles thanks again for all your help . and Happy Truckin