How much oil goes in rear-end (differential)?
#5
Team Mustang Source
Mine holds more because of the TechCo Watt's link cover. I think it's about 2.5 quarts + the friction modifier.
I use the Ford full synthetic gear oil with the Ford friction modifier. Not a fan of Royal Purple but that JMO~
I use the Ford full synthetic gear oil with the Ford friction modifier. Not a fan of Royal Purple but that JMO~
#6
Bullitt Member
Join Date: April 25, 2005
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I just had my gears changed yesterday and the rear end held 3 qts of Royal Purple 75W140 which includes the friction modifier. So, 3 qts to fill the 8.8 inch rear end.
#7
Legacy TMS Member
I've been told you fill it up until it starts overflowing from the filler hole. About 3.5 quarts for me. It overflows out of the vent on the top of the axle later, but I don't think it hurts to overfill, it's not a pressurized system.
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Rando
2010-2014 Mustang
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8/25/21 11:12 AM