Leaking seal?
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 25
From: Damon (South East Texas)
Got my new/spare seal on the shelf as well, Roland. Mt p/s blew out during summer. Jeff, i learmed after the fact, but if/when i have to do the d/s seal, i'm gonna fill the cavity with diff fluid then bolt up the axle OR park truck with p/s tires in the gutter overnight, for bearing cavity to fill with oil.
I wasnt too stoked in packing the bearings with grease just for it to contaminate the diff fluid?
I wasnt too stoked in packing the bearings with grease just for it to contaminate the diff fluid?
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Postmaster
Joined: Jun 2010
Posts: 2,555
Likes: 9
From: Longview, TX
Hmm... Well I packed in a good high temp bearing grease in each bearing, then reinstalled. I then opened the plug in the pumpkin and forced half a bottle of 95-140 in (it was at the bottom of the plug, so the half bottle was extra). I figured it would make its way to the cavity. I'm not to keen on running those bearings with gear oil in place of grease. I guess as long as the friction is down, it's ok...
Anyway, after I got the wear plate off, everything bolted back up like a charm... Torqued ratchet nut, backed off 7 clicks. Installed axle and axle bolts to hand tight (using a dab of black rtv to help the old oring). Installed the rotor and caliper, installed the tire, let down the jack, torqued the tire then torqued the axle bolts. Did fine for the 20 minute drive home. Time will tell
Anyway, after I got the wear plate off, everything bolted back up like a charm... Torqued ratchet nut, backed off 7 clicks. Installed axle and axle bolts to hand tight (using a dab of black rtv to help the old oring). Installed the rotor and caliper, installed the tire, let down the jack, torqued the tire then torqued the axle bolts. Did fine for the 20 minute drive home. Time will tell
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Postmaster
Joined: Jun 2010
Posts: 2,555
Likes: 9
From: Longview, TX
I've got two questions now.
1: will fluid from the diff make its way to the bearings? If not i need to pull the axle and fill the cavity.
2: if the rear bearings can run safely with gear oil in place of grease, what about the front? It'd be a lot easier to pour gear oil in the ABS hole than it would be to pump grease in...
1: will fluid from the diff make its way to the bearings? If not i need to pull the axle and fill the cavity.
2: if the rear bearings can run safely with gear oil in place of grease, what about the front? It'd be a lot easier to pour gear oil in the ABS hole than it would be to pump grease in...
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 25
From: Damon (South East Texas)
I've got two questions now.
1: will fluid from the diff make its way to the bearings? If not i need to pull the axle and fill the cavity.
2: if the rear bearings can run safely with gear oil in place of grease, what about the front? It'd be a lot easier to pour gear oil in the ABS hole than it would be to pump grease in...
1: will fluid from the diff make its way to the bearings? If not i need to pull the axle and fill the cavity.
2: if the rear bearings can run safely with gear oil in place of grease, what about the front? It'd be a lot easier to pour gear oil in the ABS hole than it would be to pump grease in...
The capacity and design of the front hub doesn't allow much room for oil as a lubricant. IMHO, it would need more volume to allow for expansion and cooling.
Lead Driver
Joined: Dec 2012
Posts: 7,877
Likes: 49
From: Tennessee
The axle bearings are designed to run in gear oil . Oil will reach the bearings over time .When you disturb them , they must have lube .When I am working on large trucks with full floating axles , I always pack the bearings . Then fill the well . The lube will find it's way .But! the bearings must have lube at the start also . I do a lot of work on farm trucks and OTR haulers . Packing them to start is what I was taught way back when .
Fleet Mechanic
Joined: Jul 2011
Posts: 1,667
Likes: 5
I always use lubriplate 105 assembly lube its liked whipped up moter oil it will wash out fairly quickly unlike #2 gun grease.also used it to lube warn locking hubs,and such where you dont want the sticky high film.
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