Recent content by Boomer

This is a safety issue. If it breaks while you're driving, you not only risk damaging many parts of your vehicle, you can wreck it. There are several videos of this. I recommend replacing the parts immediately with OEM parts because there many posts saying the aftermarket parts may only last 10K...

In speaking with several different Toyota parts suppliers/specialists, the overwhelming advice on the gear lube spec for the transfer case is GL-4 and not GL-5. My owner's manual specifies "GL-4 or GL-5" but I found out the hard way, from past experience with another vehicle with a rear...

I do know that the hypoid gears in differentials take only GL-5 (never GL-4). From what I've read and heard, the 75w90 full synthetic of any premium brand is good for normal driving. For heavy duty hauling, 75w140 is better. As far as LSD is concerned, if you can't find it in your owner's...