LX450 rear bearings question

[BILT4ME]

Most Dana FF axles only run gear lube from the diff in the rear wheel bearings. These trucks can run that way as well as proven by Tools.

Definitely grease and lube them before going anywhere, as I did not on on old Chevy pickup (it was nearly new at the time) and I made it one mile before they locked up. Had to torch the bearings off the spindle.

 

[Tools R Us]

I can't find the inter seal for the rear you have a part by any chance TY

If my notes are correct, 90310-35001.

 

[Tools R Us]

Most Dana FF axles only run gear lube from the diff in the rear wheel bearings. These trucks can run that way as well as proven by Tools.

Definitely grease and lube them before going anywhere, as I did not on on old Chevy pickup (it was nearly new at the time) and I made it one mile before they locked up. Had to torch the bearings off the spindle.

Filling the axle to the proper level will fill the hubs to the proper level. If you are concerned jack each side up slightly, to tilt the axle, that will for sure flood them. Have never done that and never had a problem. But then,,, it's not a chevy!

 

[BILT4ME]

Filling the axle to the proper level will fill the hubs to the proper level. If you are concerned jack each side up slightly, to tilt the axle, that will for sure flood them. Have never done that and never had a problem. But then,,, it's not a chevy!

It's because I was young and had no direction. I literally put it all together DRY!.

When I got to redo it, I parked it on a side hill for 10 minutes each direction before I drove it down the road.

Dad was PISSED!

 

[rolliges]

Well, the seals are cheap and easy. I'm sticking with Mr. T.

 

[bigredmachine]

Looks like the rear bearings are the same as front?

not sure if its the same p/n but very similar set up

 

[skhochay]

Ty you all , I will not experiment this is my genuine 22 years old bearings looks like they did well with initial engineering design with a seals

 

[Tools R Us]

not sure if its the same p/n but very similar set up

Don't recall ever changing a rear one, but the bearings are the same as the front.

 

[Tools R Us]

Ty you all , I will not experiment this is my genuine 22 years old bearings looks like they did well with initial engineering design with a seals

Have you taken it apart, did it still have grease? IIRC, with the factory setup, they should be repacked every 30K mi and almost no one does it. Most that we have dealt with had failed seals, were running on gear oil. Not a big deal, oil is a better lube, but with the failed seal the oil is mostly trapped, doesn't replenish from the axle lube.

The factory setup works fine, but should be maintained more often than most do it. By leaving the seal out maintenance is reduced to preload check, but there is a slight increase in the chance of leaks. Both work, so pick your poison, the inner seal is failure prone, so it's likely to be running with gear lube anyways.

 

[cruiserdan]

Just to clarify, the large seal that goes in the hub behind the inner wheel bearing is a must-have. The small seal in the end of the alxe tube is the one Tools leaves out. The large seal is the same size as the seal used for the front hubs but the sealing surface is different. I would make sure to use the correct rear seal, especially if you chose to run in gear oil only.

 

[rolliges]

Especially good advice cdan!

 

[Tools R Us]

Most of the time we don't go looking for this, have the axles out for other reasons, cutting the splines on locker axles or adding a lunch box locker, etc. Pull the axle and gear oil pours out. Some owners opt for the, clean, new seals repack, ordeal, others and for sure ours, just pop the spindle/inner seal off, check/set the preload and hit the trail.

 

[skhochay]

Have you taken it apart, did it still have grease? IIRC, with the factory setup, they should be repacked every 30K mi and almost no one does it. Most that we have dealt with had failed seals, were running on gear oil. Not a big deal, oil is a better lube, but with the failed seal the oil is mostly trapped, doesn't replenish from the axle lube.

The factory setup works fine, but should be maintained more often than most do it. By leaving the seal out maintenance is reduced to preload check, but there is a slight increase in the chance of leaks. Both work, so pick your poison, the inner seal is failure prone, so it's likely to be running with gear lube anyways.

I will video tape the process - very interesting to see when I will take them apart???

 

[bigredmachine]

Ty you all , I will not experiment this is my genuine 22 years old bearings looks like they did well with initial engineering design with a seals

when I repacked my rear bearings they still had the original grease and they were fine,
https://www.amazon.com/Lisle-34550-Handy-Packer-Bearing/dp/B0002NYDYO
that is the best thing to pack wheel bearings

 

[shishkabobs]

Most of the time we don't go looking for this, have the axles out for other reasons, cutting the splines on locker axles or adding a lunch box locker, etc. Pull the axle and gear oil pours out. Some owners opt for the, clean, new seals repack, ordeal, others and for sure ours, just pop the spindle/inner seal off, check/set the preload and hit the trail.

Tools- I have the axles out currently and plan on leaving the inner seal off to let the gear oil flow as suggested. While I have everything apart, would you recommend I swap the large seal that goes in the hub with a new one or are these pretty stout?

If I do replace that seal, should any grease be used during reassembly or will the gear oil, once refilled, be sufficient?

 

[Tools R Us]

Tools- I have the axles out currently and plan on leaving the inner seal off to let the gear oil flow as suggested. While I have everything apart, would you recommend I swap the large seal that goes in the hub with a new one or are these pretty stout?

If I do replace that seal, should any grease be used during reassembly or will the gear oil, once refilled, be sufficient?

I would replace the hub seal, lube type doesn't matter, I use grease.