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Discussion Starter · #1 ·
If you have warn premium hubs on the front of your 99-2003 7.3L F250/F350 you can install a zurk fitting in the spot where your vacuum line used to connect to actuate your autolocking hubs. This will grease your inner axle shaft bearing. Quick and simple.... Just thought you should know
i Had my inner wheel bearings go bad and they ended up damaging my stub shafts in the process costing me an extra $300.00. It takes five minutes a side to install.
 

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Discussion Starter · #4 ·
That tells you how to spend a bunch of time taking it all apart and greasing it. If you install that zerk fitting and pump about 10 pumps worth of grease into it. You will do the same thing in a 1/16 of the time.
 

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Pipeliner
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That tells you how to spend a bunch of time taking it all apart and greasing it. If you install that zerk fitting and pump about 10 pumps worth of grease into it. You will do the same thing in a 1/16 of the time.
Will this method work with working stock hubs ??
 

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<<< THE GAUGE WHORE...
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How about those of us with manual hubs from factory? Any way to mount a grease nipple?

Same way... You just have a fitting with a plug in it.
 

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Discussion Starter · #8 ·
Will this method work with working stock hubs ??
No it will not work on factory autolock hubs. They work via the vacuum lines. If you fill it with grease the autolock portion will not work correctly. But if you really wanted to you could fill it with grease and then have to manually lock the hubs in when you want to use them. I wouldnt do it. just a suggestion.
 

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FORD..THE ROCK CRUSHER
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been greasing mine like that for 5 years now..works well,,,i want to do the Dynatrac hubs as well..pricey but nice..
 

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My other twin turbo...
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Zircs are usually 1/4-28 for the small ones, and 1/8-27 npt for the hole that measures near.350 You should not over pack hubs, that can inhibit the action sometimes. Twisting the lock cams a gear into position to lock the hub with the axle shaft, a small spring is used to return the gear to free wheel when the cam is backed away. Loads of grease can slow the spring return significantly. Another trick I learned is to use special low temp grease that I used to buy from GM when I was owning a few of them. It stays nice and soft in very cold weather, which is just the time I need my hubs to work.
 

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i have been doing this for quite a while since i replaced my first bearing assembly haven't had a problem since works great
 

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Looks like ill be doing this soon when I replace my hubs
 

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Discussion Starter · #15 ·
If you put your head in your fender well and look directly down you will see a pipe plug. Their is only one whole on the spindle that would be blocked off.
 

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If you have warn premium hubs on the front of your 99-2003 7.3L F250/F350 you can install a zurk fitting in the spot where your vacuum line used to connect to actuate your autolocking hubs. This will grease your inner axle shaft bearing.
I read somewhere on this forum that this is incorrect (after installing zerks in those holes).

Putting a zerk in that whole will pump grease on the outside of the unit bearing assembly....not the inner shaft or bearings. They are not serviceable.
 

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Jack Ken
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The inner bearing is servicable...just not from ford. The bearing has a timkin number on it. Just drive the bearing out and take it to the parts store, mine had them in stock last time I did one. And it was like 10 bucks. Just a little fyi for everyone.
 

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Discussion Starter · #20 ·
Yes you are correct, But I am trying to make it so you dont have to service the bearing at all.
 
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