Changed our 2002 axle to 75W-140 Supertech (Walmart Brand) axle lube a couple years ago. Didn't want to remove the axle cover. Wasn't leaking and I didn't want trouble, especially with the large afternarket sway bar and track bar I installed on ours. With the lube warm and stirred right after a trip, sucked the lube out with an "Oil Boy" as used changing oil in boat engines. Started with the OB empty so I could measure what came out against the capacity spec. It matched. The WM lube comes in 1-quart bottles and I fitted hose to their squirt caps. Filling went pretty well, but next time, I'd put more cardboard down, and reach us to punch a hole in the bottom of each bottle, instead of trying to squeeze it. Good idea to have the new lube bottles in the sun, a warm room, or in hot water prior to filling.
If God's Your Co-Pilot Move Over, jd
2003 Jayco Escapade 31A on 2002 Ford E450 V10 4R100 218" WB