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I have a 2002 Toyota Tacoma i need to change the transfer case fluid on. I bought a gallon of Lucas Heavy Duty 80W-90 Gear Oil to do front and rear diffs and the transfer case. But then i started wondering if the Lucas gear oil was compatible with the brass syncros in the transfer case. I know...

I have a jeep 4.0 with flat tappet camshaft And i was told that i could use Lucas TB Zinc Plus as a Zinc additive. But i don't remember what the ratio of TB Zinc Plus to quart of oil. I was thinking it was like 1 oz of lucas to a quart of oil or something like that? I remember hearing you can...

I have a 1994 jeep wrangler with a 4.0... I have read about the whole Zinc thing and the 4.0's having flat tappet cams. First off the cam is stock as is the rest of the motor internally. I use the jeep as a daily driver and thrash it when i get the chance. So i want to know whats the best off...