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Is this a factory LSD???

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Old 10-06-2008, 07:03 PM
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Is this a factory LSD???

OK I re geared the 4 runner and someone had replaced the gears with 4:56's and the rear carrier has clutch plates and 4 gears internally on it. Buddy whos been doing 3rds for 15+ years said its a LSD and its stamped Toyota motor co on it.
What Im curious about is the plates inside look like friction plates.
Doesnt look like my old carrier in my other 4 runner either.
It came out of the 8" rear on a 94 4 Runner.

Last edited by bullcrew; 10-06-2008 at 07:59 PM.
Old 10-06-2008, 08:36 PM
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ZUK
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Looks like a sidegear washer. If that is only 1 clutchplate there then it's not a LSD....it would be a 4 pinion open case.....very common to most V6 trucks.
Old 10-06-2008, 08:44 PM
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Should be VERY easy to test. Stick your fingers in and try to rotate that splined socket while holding the splined socket on the other side still.

Toyota never sold a North American truck with an LSD before 1995, but I have seen a 1990-1995 Hilux Surf with a white sticker saying LSD in red right by the fill cap on the rear diff. The would be a logical place to put the sticker too if you had to use LSD additive.
Old 10-06-2008, 09:19 PM
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dont know, it looks like 3 or so plates.
Old 10-06-2008, 09:26 PM
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Originally Posted by bullcrew
dont know, it looks like 3 or so plates.
Test it! Should be easy to spin if its open.
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