Quote:
Originally Posted by johnbt
" I waved the owner's service manual at him and got it done. For free.
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My dealer offers drive shaft lubrication only if I choose scheduled maintenance for a TRUCK, which costs an extra $100. Most service writers think of the 4Runner as a CAR and don't realize the driveshaft has grease fittings. I lube it myself.
I use the same grease for slip yokes. After many times of greasing it, there is a potential of over-greasing and locking up the joint, so bench greasing yokes is the best method. I think the next time I grease it, I'll remove the zerk, wrap the shaft in aluminum foil and drive over tall speed bumps and deep dips on a nearby street. I'll post what happens here. This "test" probably won't prove anything. I think there must be an air space in the slip joint, hence the grease I just put in will be pushed out. If I give it a couple extra shots of grease, then some grease has to reach the splines.
Has anybody ever greased the slip joint until grease oozed past the seal? I think that would result in a hydro locked joint.
This video,
YouTube shows grease slung from a FJC slip joint. Fast forward to time 3:33. Obviously, it was over-greased, with no apparent damage to the joint or seal.