Forum Discussion
cewillis
May 25, 2017Explorer
Home Skillet wrote:
That fill plug looks way too high up. You will be over filling the rear end,which will cause axle seal leaks.
Just my $0.02
Spent some time on this question - so yes, I was aware of the issue and thought about it. And DID NOT fill to the fill hole, which is 3/4" higher than stock. The correct level is as stated here: 'The correct oil level should be between the bottom of the inside of the axle tube and bottom of the axle shaft.'
I measured to the bottom of the axle tubes on both sides, and also used a good level to locate the (outside) bottom of the tubes on the differential cover. Added 1/4" for the tube thickness, and added 1/4" above that -- which is still well below the axle shafts.
That procedure defines the max fill level, in my well-informed opinion.
In the second to last picture, one may notice an 'etched' mark on the cover (made by me with hammer and chisel). That is the max fill line.
I admit it was a little 'tricky' determining when the oil level was at max -- but it is. Takes 4.5 quarts Amsoil 75-90, minus the small amount left in the bottles and the funnel.
About Travel Trailer Group
44,030 PostsLatest Activity: Jan 20, 2025