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Old 06-07-2010, 03:32 PM   #1 (permalink)
love0126
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Timken front wheel bearings

I'm doing some preliminary shopping in case my truck decides to cough up a front wheel bearing. I've been reading some horror stories about the front wheel bearings lasting as long as a nerd with a vegas call girl. With this in mind, I've done some preliminary research on autozone and found that the stock replacement front wheel bearing on my 2500 HD 4x4 D/A is Timken p/n SP580304 which costs $232.00. The 3500 4x4 D/A uses Timken p/n SP580311 and costs only $192.99. Does anyone know if the 3500 bearing will fit in the 2500's spot? I was unable to find the specifications for either bearing. I don't run big tires or rims, but I do haul some heavy fifth wheels that give my truck quite the workout. I've read numerous threads on here but I haven't found anything that specifically shows a superior aftermarket alternative. So if anyone has any ideas about a superior aftermarket alternative, do let me know. I've got the stock ones on right now at 144,000 and they seemed fine as of last tire rotation 5k ago. I'm just planning for the inevitable.
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Old 06-07-2010, 03:51 PM   #2 (permalink)
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Kinda curious myself
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Old 06-07-2010, 04:00 PM   #3 (permalink)
Mike_S
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You can prolong the life of the bearings by removing the ABS wheel speed sensor and using a grease needle to pump some grease into the unit-bearing. Not so much as to cause the seals to push out, but enough to replace the grease that escapes over the course of several thousand miles. I do mine about every 15K.
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Old 06-07-2010, 04:07 PM   #4 (permalink)
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Quote:
Originally Posted by Mike_S View Post
You can prolong the life of the bearings by removing the ABS wheel speed sensor and using a grease needle to pump some grease into the unit-bearing. Not so much as to cause the seals to push out, but enough to replace the grease that escapes over the course of several thousand miles. I do mine about every 15K.
Is there room to do this with the cv shaft still in place, or does the cv shaft have to be removed during this procedure?
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Old 06-07-2010, 04:11 PM   #5 (permalink)
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Is there room to do this with the cv shaft still in place, or does the cv shaft have to be removed during this procedure?
The wheel speed sensor is in the top of the bearing housing, on the inside of the knuckle. You will have to remove the wheel, brake caliper and rotor, and then there is an allen socket head bolt holding the sensor in place. You may have to bend the dust shield some to get the sensor out but that is all you'll have to remove. Then just pump some grease from a grease gun and needle in through the hole while turning the hub.

To find where the wheel speed sensor is, just follow the wire that is mounted to the upper A-arm down past the upper ball joint and there you will see exactly where it is.
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1994 EXT Cab, SB, 1500 HD, 350 SBC, Whole Buncha $hit And Its Still Not Fast. Hmmm...Maybe Its Cause Its As Tall As A House...

(I do all my own work...Just can't trust anyone else not to screw something up)

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Old 06-07-2010, 04:22 PM   #6 (permalink)
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Quote:
Originally Posted by Mike_S View Post
The wheel speed sensor is in the top of the bearing housing, on the inside of the knuckle. You will have to remove the wheel, brake caliper and rotor, and then there is an allen socket head bolt holding the sensor in place. You may have to bend the dust shield some to get the sensor out but that is all you'll have to remove. Then just pump some grease from a grease gun and needle in through the hole while turning the hub.

To find where the wheel speed sensor is, just follow the wire that is mounted to the upper A-arm down past the upper ball joint and there you will see exactly where it is.
That sounds like a good weekend project. I'll probably check the condition of the pins on my calipers while I'm at it.
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Old 06-10-2010, 09:05 AM   #7 (permalink)
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Personally i had great experience with this vendor and i believe if you read through you will find your answer too. https://dmaxstore.com/index.php?main...uhsep62ecodgr3
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Old 06-10-2010, 09:13 AM   #8 (permalink)
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Personally i had great experience with this vendor and i believe if you read through you will find your answer too. https://dmaxstore.com/index.php?main...uhsep62ecodgr3
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Old 06-10-2010, 09:38 AM   #9 (permalink)
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X2!!!!
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Old 06-10-2010, 09:45 AM   #10 (permalink)
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Turns out my 2002 4X4 Excursion PSD has the same setup as our trucks. Just greased them yesterday as per Mike_L's method with 138K on the original bearings. I'm good to go.
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