Not saying that you should use gl5. That stuff's add pack is mostly ment for diffs. I personally use gl4 synthetic only.

All I'm offering is facts. I know there are guys running atf and all kinds of other home brews. Not saying it doesn't work.... however all Im offering is technical data.

88 Montero, StarQuest turbo, Kormex 5speed +tuff-pan w/phoenix f. stage2 clutch, 4in lift+33' tires, 4.875 lsd, short-throw shifter, Aisin hubs, SR big brakes, gen2 uca's, elantra alt, and so much more... 16g turbo w/hardpipes + 4.90 locking disk-brake axle soon (maybe lsd or aussie front??)