[Reese Perry]

Has anyone ever checked their temperature on their rear axle housing? I recently bought a infra red thermal gun and did a temperature check on the rear axle. After driving around for about 45 minutes in 88 degree weather it registered at 141-145 degrees. Does that sound high to anyone?

 

[Vincent]

I'd say it normal...

 

[JimP]

You also have to remember that the wet brake for the rear is located just ahead of the rear diff and uses the same fluid. So as you use the rear brakes the fluid may warm up some and heat the rear diff housing.

I wouldn't worry about it.

 

[Reese Perry]

You also have to remember that the wet brake for the rear is located just ahead of the rear diff and uses the same fluid. So as you use the rear brakes the fluid may warm up some and heat the rear diff housing.

I wouldn't worry about it.

Great Jim. Thanks a lot for the response. I just recently changed it and went back with what Yamaha recommends, I think it is Yamaha 75-90W gear oil with friction modifiers in it.