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How to tell if it has limited slip?

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Old May 10, 2007 | 04:54 PM
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How to tell if it has limited slip?
If a F150 has the LS from the factory, will it be listed inside the drivers side door?

Found 2 nice 05 Scab's I'm going to go look at this weekend.
 
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Old May 10, 2007 | 05:03 PM
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19 — 3.55 open diff.
26 — 3.73 open diff.
B6 — 3.73 limited slip
H9 — 3.55 limited slip
 
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Old May 10, 2007 | 05:08 PM
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Thanks!
Edit, leaving this link here if this is searched.

http://www.ford-trucks.com/article/i...r_Decoder.html
 
Last edited by Cyprex; May 10, 2007 at 05:17 PM.
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Old May 11, 2007 | 02:45 PM
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Aside from checking the codes, the fastest way to tell is take the truck to a patch of grass, stop, then floor it and see if you left one or two tire marks.
 
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Old May 11, 2007 | 02:53 PM
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Jack up the rear, spin one tire by hand and depending on the direction of the other tires rotation...that will tell us if you're running an LS or stronger back there.
 
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Old May 11, 2007 | 03:12 PM
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Just do a big smokey burnout and hope nothing breaks.
 
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Old May 11, 2007 | 03:22 PM
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if gas + gravel or grass = 2 tire marks, proof it's got a LS


if gas + gravel or grass = 1 tire mark, well IMO, don't buy the truck
 
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Old May 11, 2007 | 03:26 PM
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Powerbrake it
 
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Old May 11, 2007 | 04:13 PM
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that gets expensive, and most dealers have real issues with powerbraking
 
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Old May 11, 2007 | 10:13 PM
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Originally Posted by Josiah
Jack up the rear, spin one tire by hand and depending on the direction of the other tires rotation...that will tell us if you're running an LS or stronger back there.
Wheels rotate in the same direction=LS

Wheels turn in opposite directions=open diff
 
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