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Author Topic: Front dif LSD  (Read 2554 times)

Offline Gusgusa1

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Front dif LSD
« on: June 03, 2014, 07:12:36 pm »
Is it possible any of our trucks came factory with limited slip up front?  My gut says no but I may be wrong. Specifically 1986 silverado k10.
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2002 gmc 1500hd 6.0 4x4
1987 gmc Sierra classic 1500 350ss 4x4
1986 silverado 350 4x4
1984 scottsdale 305 quad jet 4x4 4spd manual
1982 camaro z28 350 w vortec heads spool

Offline dvdswan

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Re: Front dif LSD
« Reply #1 on: June 03, 2014, 10:39:05 pm »
AFAIK, the only vehicles to come from GM with a front locking device would be the CUCVs.  you can purchase one aftermarket though.
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Offline Engineer

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Re: Front dif LSD
« Reply #2 on: June 04, 2014, 07:08:06 am »
As dvdswan said the ONLY GM truck to have anything other than an open differential was a few military 5/4 ton trucks. Those were identical as the M-1008 but were designated M-1028.

The M-1028 had a Dana Trac-lok in their Dana60 front axle. The Trak-lok is not a locker, but a single clutch cousin of the two clutch Dana Power-lok.
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2002 Chevy 2500HD 4x4 8.1/ZF6sp RC/LB
2001 Chevy 2500HD 4x4 6.0/4L85E EC/SB
1997 Chevy Blazer 4x4
1994 Chevy K-2500 4x4 C6P 5.7/4L80E
1979 Chevy K-30 4x4 4sp 4.10
1977 Chevy K-30 4x4 4sp 4.10 454

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Offline Gusgusa1

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Re: Front dif LSD
« Reply #3 on: June 04, 2014, 07:59:57 am »
That's what I thought. Thanks for the confirmation guys.
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2002 gmc 1500hd 6.0 4x4
1987 gmc Sierra classic 1500 350ss 4x4
1986 silverado 350 4x4
1984 scottsdale 305 quad jet 4x4 4spd manual
1982 camaro z28 350 w vortec heads spool
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