front diff problems
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Senior User
Joined: Oct 2014
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front diff problems
04 f250 4x4. I thought my front pinion bearings were gone so went to replace the but there was nothing wrong with them so pinion had some play in it so tighten it down changed all seals and put back together tried it out still slipping. What do I do?
Logistics Pro
Joined: Dec 2004
Posts: 4,138
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From: South Weber, Utah
What exactly do you mean by slipping?
Tuned
Joined: Jun 2006
Posts: 420
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Do you hear or feel anything when it's "slipping"? How are you testing the front drive train (is the rear drive shaft removed)? If you haven't already have you checked if your hubs are locked and in good clean and greased condition internally? I would think it would be easier to bend a crow bar in a sand box than tearing up an axle that's in our trucks (never mind the front one that only turns when 4x4 is engaged) but I guess anything is possible.
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So not sure about preload or backlash but I did try 4x4 with out hubs locked so no load on front differential. Still made a clunking sound jumping a little when in gear. I thank I went in the wrong direction by rebuilding the front axle. I thank I should have went in the transfer case instead.
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Logistics Pro
Joined: Dec 2004
Posts: 4,138
Likes: 7
From: South Weber, Utah
So not sure about preload or backlash but I did try 4x4 with out hubs locked so no load on front differential. Still made a clunking sound jumping a little when in gear. I thank I went in the wrong direction by rebuilding the front axle. I thank I should have went in the transfer case instead.
Logistics Pro
Joined: Dec 2004
Posts: 4,138
Likes: 7
From: South Weber, Utah
With the 4X4 engaged and the front drive shaft removed is there slop in the front output shaft from the transfer case?