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1997 Ford F-150 rear differential

Tiny
JWFORD
  • MEMBER
  • 1997 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 165,000 MILES
It seems like there's alot of play in the differential. When I take off from a stoplight or shift to reverse there's a jerk, it's been like this for a while. Now when I take off making a left turn I can here a cracking noise in the rear. What could be the problem?
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Friday, July 9th, 2010 AT 8:47 PM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,310 POSTS
It soulds like a bad universal joint. Have you checked them?

Let me know.
Joe
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Friday, July 9th, 2010 AT 8:49 PM
Tiny
JWFORD
  • MEMBER
  • 2 POSTS
The u-joints are fine, but there's in and out play in the rear axles, at least 1/4"-1/2". Is this normal?
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Saturday, July 10th, 2010 AT 7:31 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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I would say it shouldn't be more tha 1/8". If it is 1/2", that is too much.
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Saturday, July 10th, 2010 AT 8:54 PM
Tiny
JWFORD
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  • 2 POSTS
What would cause this much play and how can it be fixed?
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Sunday, July 11th, 2010 AT 9:16 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,310 POSTS
It sounds like general wear in the differential. I believe they can be shimmed.
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Sunday, July 11th, 2010 AT 11:30 PM

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