Dry axle shaft ?
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Joined: Jun 2015
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From: New Hampshire
Dry axle shaft ?
1975 F250 Highboy with FE360,C6 trans and Dana 60 rear end
Recently I had to replace brakes all around and all associated components; i.e. axle seals, hardware, shoes, wheel cylinders, wheel seals, repacked wheel bearings, etc.
I've driven about 400- 500 miles since the brake service was completed.
As part of the rear axle brake service, I topped off the rear end lube level until it dripped out of the fill hole.
I had been second guessing myself regarding the axle nut torque I used so I decided to pull rear axles today just to calm my brain and recheck the torque.
All was good; torque-wise but....while the passenger side axle was nicely lubricated along its entire length, the drivers side axle was bone dry.
Does this seem correct?
Thanks in advance.
Tbruz
Recently I had to replace brakes all around and all associated components; i.e. axle seals, hardware, shoes, wheel cylinders, wheel seals, repacked wheel bearings, etc.
I've driven about 400- 500 miles since the brake service was completed.
As part of the rear axle brake service, I topped off the rear end lube level until it dripped out of the fill hole.
I had been second guessing myself regarding the axle nut torque I used so I decided to pull rear axles today just to calm my brain and recheck the torque.
All was good; torque-wise but....while the passenger side axle was nicely lubricated along its entire length, the drivers side axle was bone dry.
Does this seem correct?
Thanks in advance.
Tbruz
Laughing Gas
Joined: Nov 2013
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From: S.E. Louisiana;so far USA
The 1976 Ford shop manual says (page 11-14-1) The wheel bearings are packed with wheel bearing lubricant (C1AZ-19590-B) to provide initial lubrication until axle lubricant flows into the wheel hubs and bearings during vehicle operation.
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More Turbo
Joined: Jun 2015
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From: New Hampshire
Ozzie H- Wheel bearing were re-packed at brake service. DS side axle is currently dry after 400-500 miles.
tbear853- garage floor is dead level, I even went as far as jacking up the passenger side for a couple hours(lube flow side) to see if I could force some lube into the dry side via gravity. No joy on that either.
Lube fill level is correct to slight higher than correct as I've added some lube over the past few days to see if I could force the flow.
Thanks
Tbruz
tbear853- garage floor is dead level, I even went as far as jacking up the passenger side for a couple hours(lube flow side) to see if I could force some lube into the dry side via gravity. No joy on that either.
Lube fill level is correct to slight higher than correct as I've added some lube over the past few days to see if I could force the flow.
Thanks
Tbruz
Hotshot
Joined: Feb 2004
Posts: 10,805
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From: The Shenandoah Valley
You have a 3/4 ton truck with free floating hubs, the axles just slide in / out after outer end bolts are removed. The wheel bearings are packed aren't they? The axles enter the rear at the same level directly opposite each other. , if one is wet and one is dry, then the truck has a low rear tire tilting the axle housing or the floor is not level. As you drive, one will often be submerged due to roadway superelevation, curves, side hill driving. You said the bearings were packed. There are no seals for the axle shafts, they enter the differential directly opposite each other, one is no higher than the other. Even if the axle shaft is dry, there can still be lube oil in the much larger axle housing tube. Think of the rear axle housing as a bubble level.
(9) What is a full floating axle, and what are the advantages? - Quora
(9) What is a full floating axle, and what are the advantages? - Quora
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I always jack up one side of the axle so the fill hole is up from where it should be. Then fill till it runs out of the fill hole( thus overfilling it). That way it will be sure and get some lube out to the wheel bearings, then after driving for several days you could remove fill plug and let some out if you are concerned about overfilling. I don't!
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Joined: Jun 2015
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From: New Hampshire
Axle is not bent. This truck lived a very easy life.
I ended up pulling out the DS axle and jacking up the passenger side until oil flowed out the DS axle tube.
Having satisfied myself that there was no blockage, I re-installed the DS axle and called it "good-to-go".
I've since treated the D60 rear end(and D44 front end) to a complete lube change with Lube Locker gaskets in case I have to go in there again.
Thanks
Tbruz
I ended up pulling out the DS axle and jacking up the passenger side until oil flowed out the DS axle tube.
Having satisfied myself that there was no blockage, I re-installed the DS axle and called it "good-to-go".
I've since treated the D60 rear end(and D44 front end) to a complete lube change with Lube Locker gaskets in case I have to go in there again.
Thanks
Tbruz
Tuned
Joined: Apr 2023
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I always jack up one side of the axle so the fill hole is up from where it should be. Then fill till it runs out of the fill hole( thus overfilling it). That way it will be sure and get some lube out to the wheel bearings, then after driving for several days you could remove fill plug and let some out if you are concerned about overfilling. I don't!
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