im changing some parts out and upgrading the transmission a bit. shift kit, new rear seal, z gate shifter, transmission cooler, and i want to replace the modulator. i used to work auto parts and i would notice the modulators had a color stripe on them. what does this color mean. this modulator on this transmission was so full of crap.i cleaned it and it doesnt have a stripe. i know it has do do with the shift point but i have no clue what color modulator i need. or should i just got to an adjustable one?