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After lubing my drive shafts I had quite of bit of excess grease inside the spider.
(Long story, I used the wrong grease and regressed with Mobile 1 synthetic, pumped out the incorrect grease until M1 Syn came out).
I cleaned up the excess grease so not to have it flung everywhere, but I am wondering If you can safely use brake cleaner to get it really cleaned up?
Or will the break cleaner do more damage to the seals?

Other than that it went really smooth. Now I want to do my 4Runner Trail what mileage do you start the relube maintenance? I bought my 4Runner new in 2015 but has really low mileage.

Thanks 🤙🏼
 

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...can safely use brake cleaner to get it really cleaned up?

Or will the break cleaner do more damage to the seals?
The grease isn’t really going to hurt anything down there, so I don’t find brake cleaner necessary - I just wipe up the excess with a paper towel until it’s clean. If you lubed properly you’re just going to have more grease flung around the U-joints anyway.



Now I want to do my 4Runner Trail what mileage do you start the relube maintenance?
I re-lube every time I do an oil change, so every 5,000 miles. As a matter of fact, I just changed oil and re-lubed the zerks today.

Now that I’ve done this a few times to my FJ, and can absolutely advise that pumping grease until you see it come out of the slip joints is the way to properly do this. The key here is that you HAVE to GO SLOW. By going slow, I mean pumping grease (slowly) until you see the drive shaft expand, and then STOP. Wait until the drive shaft settles to its original position, and give it another pump. Each time you pump, you’ll see the drive shaft expand, but it will settle back to its original position. Keep doing this until you see grease seep out of the slip joint, and then you’re done.

Since I correctly lubed my slip joints last time, this time I got the same “crackling” sound from the slip joints that I get from the U-joints, which was soon followed by old moly grease. This means the seals are working properly and air is getting pushed out, along with old grease.

Again, if you’re not seeing any grease come out when you lube the slip joints, you’re not doing it right - but you HAVE to GO SLOW.
 
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