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- #21
You should be using the same grease on the trunion bearings as in the knuckle because it is in the same place and you don't want to be mixing greases
How much grease in the knuckles
- Thread starter lt1fire
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turbocruiser, that's some great pictures. I will use his post 7 and 8 to clearify the number of tubes needed. I follow exactly was he does but I have to ask why he did not put grease on the trunion bearing races in his first picture? I then pack the axle cup FULL of grease after I slide the axle back in but before I put the housing on. Then if you look at his final picture in post 8 when the steering housing is back on, I pack as much as possible into the housing until its between the top set of holes and the next ones down. That is the 3/4 full that the FSM is talking about. After I bolt the spindle on I go ahead and pump a few pumps in through the fill plug. I do this because you cannot fully pack the housing 3/4 with the spindle is off, otherwise the grease falls out. And this all takes nearly 4 tubs of 14 oz grease per side (including what is used to pack into the birfield).
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Good question, here's another shot showing the trunion bearings, it is just that at that first step the races were not yet lubed liberally, trust me though, it all gets a greasing. What works well with the bearings is to put them into the bearing greaser and push the grease through the bearings. I do this three times then remove and really push it in with the palm, I put a super heavy smear on the races, let the grease hold the lower one in place, let the gravity hold the upper one in place and then put the knuckle on. HTH.
The FSM calls out wheel bearing grease for the trunion bearings - which is what I used. I don't think there is much chance of the wheel bearing grease from the trunions mixing with the moly from the knuckle/birf.
Tom
Speculative, I say some mixes ... eventually.
Anyway, again, if you use the same stuff throughout, you cannot go wrong with it. Amsoil w/Moly: approved for both high speed and low speed bearings, birfs, etc. An all around good compromise. JMHO.
"compromise" meaning moly content.
I agree that the two greases will eventually mix but nothing to worry about. The trunion bearing only rotates a limited amount, not constant spinning like a wheel bearing. Due to this fact I think using moly grease is a better choice even when the FSM calls for non moly grease because the limited motion of the bearing. Moly is used in sliding applications and typically not good for a bearing roller that should spin but again the trunion bearing is unique.
Agreed. I don't think the limited motion of the trunion bearings warrants high-speed bearing grease. As far as mixing goes, it certainly would, but I'm not sure it would be anything to worry about. It would suck to see the relatively minor amount of grease in the trunion bearings react with the huge amount of grease in the knuckle, though.
I just finished a basic front-end repack. I used Valvoline Palladium grease for the knuckles/birfs. High moly content dino grease specified for heavy-duty industrial use. Pretty sticky, slippery stuff. Since I used it on my driveshaft splines, my clunk has been quiet for a record amount of time.
Good stuff.
Hayes
