4x4 and auto locking hub problem

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Mar 1, 2009 | 08:36 PM

aguitarestv

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4x4 and auto locking hub problem

<TABLE width="100%" border=0 itxtvisited="1"><TBODY itxtvisited="1"><TR itxtvisited="1"><TD vAlign=top width="100%" itxtvisited="1">having problem with the automatic locking hub on my 97 f250 hd, seemed to be 1/2 engaged because it was making some noise, so i pulled it apart and regreased it, and putting it back together couldnt get snap ring (over the spline washer) into the groove to seat it in, even after pulling the axle out that wee bit. was wondering if anyone has a photo breakdown of the auto hub assembly to make sure i assembled it correctly (no manual) and any ideas why this would happen. i also went to change the oil in the front dif. and come to find there was only 1/2 quart of fluid in there(not the 1.8 thats needed) was wondering if that would have any affect? </TD></TR></TBODY></TABLE>

Mar 1, 2009 | 08:45 PM

Steve_250

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From: Near DC

Here ya go, complete with pics!
Go to his main page and bookmark it, great info for future reference.
Hope this helps ya!
Welcome to guzzle's 4x4 Autolock Hub Lubrication Maintenance Web Page

Mar 1, 2009 | 08:54 PM

aguitarestv

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well thanks for the info, but...my truck is a 97...kind of different hub assembly, would be perfect if was the right one though

Mar 2, 2009 | 07:40 AM

aguitarestv

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***bump***

Mar 2, 2009 | 10:18 AM

dchamberlain

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From: Scio, OR

I know very little about the earlier automatic locking hub. However, I do have a subscription to the service manual for my Dad's '96. Hopefully this helps.

Quote:

Separate cap from body assembly by removing the three capscrews from the cap. CAUTION: Do not drop hub components during removal and installation.
Remove cap.
Remove the lock ring seated in the groove of the front disc brake hub and rotor.
Remove the body assembly from the front disc brake hub and rotor.
Remove snap ring from stub shaft groove.
Remove spacers (three thrust washers) from shaft.
Remove cam assembly. Pull to remove.

INSTALLATION

Align the fixed cam retaining key on the cam assembly (garter spring inboard) with the keyway on the spindle. Firmly press the cam assembly on the wheel retainer nut.
Install 3 ring washer set. 1st Metal, 2nd Plastic, 3rd Spline and retainer lock ring on C-clip. It may be necessary to use the axle outboard from backside of knuckle. Be sure retaining ring is seated in groove properly. NOTE: Improper sequence of the three piece thrust washers will result in excessive wear of assembly.
Rotate moving cam stop (use any one of three) to the one o'clock position in relationship to the fixed cam retaining key. CAUTION: Do not force body assembly into front disc brake hub on rotor if body assembly will not fit. Recheck alignment of all components. NOTE: The hubs should not be packed with grease. Too much grease will damage the hubs.
Install body assembly into vehicle front disc brake hub and rotor by lining up the three legs outside the hublock body with the three pockets in the cam assembly.
Make sure body assembly is in far enough to see groove in rotor tube. Install large lock ring into groove of hub. Be sure lock ring is correctly seated.
Install cap to body assembly. Install three capscrews and tighten to 4.0-6.0 Nm (35-53 lb in) .

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Mar 2, 2009 | 11:35 AM

aguitarestv

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ok so i have the hub back together, low and behold it is still grinding really bad, in 2 and 4 wheel drive! would it be something in the front dif. or something that controles the 4x4?