Differential covers 101
PU Truck mag That answered a lot of my questions about these covers. Extra large ones may not make a lot of sense because they disturb the oil flow in the housing.
Forum Discussion
Exactly how I drain my 97 F350's front and rear pigs but I use 85-140 Spirax not synthetic.
Been told by the Freightliner of Toledo Service manager (who happens to be a good friend of mine not to switch to synthetic because it will leak past the pinion seal and axle seals. Whether that is true or not, not sure but I buy 85-140 in 5 gallon pails because I use it in mt ag tractors front wheel assist differentials and all my implement gearboxes too.
Unlike you, I se a new gasket every time, The are under 10 bucks at autozone.
My truck sits high enough I can sit under the chassis so no creeper needed.
Transfer case gets the same treatment (every 2 years).
Been told by the Freightliner of Toledo Service manager (who happens to be a good friend of mine not to switch to synthetic because it will leak past the pinion seal and axle seals. Whether that is true or not, not sure but I buy 85-140 in 5 gallon pails because I use it in mt ag tractors front wheel assist differentials and all my implement gearboxes too.
Unlike you, I se a new gasket every time, The are under 10 bucks at autozone.
My truck sits high enough I can sit under the chassis so no creeper needed.
Transfer case gets the same treatment (every 2 years).
