rear differential drain plug
#31
Chuck, when you say "too thick" what exactly do you mean? Do you believe that Amsoil 75w 110 is too thick for a summer car?
#33
#34
Chuck, when you say "too thick" what exactly do you mean? Do you believe that Amsoil 75w 110 is too thick for a summer car?
SAE split the 90 grade gear oil specification after our cars went out of production and made the upper half of the 90 grade the new 110 which didn't exist before a few years ago. This means 110 grade meets the "old 90" grade spec albeit in the other half of that old range. 140 and 250, the only higher viscosity grades, remain the same.
New 90 + New 110 = Old 90.
I have two quarts of Amsoil 75W-110, and two of LE-9920 75W-140. Game time decision which gets to play in the differential this year. Both claim to be GL-5 hypoid gear oil.
-- Chuck
#35
#36
Remember you can just put the same magnetic drain plug (on the bottom) in the upper fill hole for the Diff. use the same wrench, easy breezy. Been recommended previously.
Been using amsoil 75w110 for years and I tow a 500lb tire trailer about 1200 miles/year- every year I change the diff fluid and there is virtually no "paste".
darcy
Been using amsoil 75w110 for years and I tow a 500lb tire trailer about 1200 miles/year- every year I change the diff fluid and there is virtually no "paste".
darcy
#37
#38
I know some folks just replace the fill plug with a drain plug to make them both 24. If you do this, which crush washer should you use? I ask this because I had the experience recently of using the wrong crush washer for the drain plug and the darn thing leaked a bit. Had to pull it and replace the crush washer with the correct crush washer. Leak went away instantly. Not a big deal probably on the fill plug. But, little leaks are a PIA and can cause real problems.
#40
I know some folks just replace the fill plug with a drain plug to make them both 24. If you do this, which crush washer should you use? I ask this because I had the experience recently of using the wrong crush washer for the drain plug and the darn thing leaked a bit. Had to pull it and replace the crush washer with the correct crush washer. Leak went away instantly. Not a big deal probably on the fill plug. But, little leaks are a PIA and can cause real problems.