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Old 01-06-2009, 11:35 PM   #1
willett
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factory lockers

My '78 has factory lockers

i'm wondering both ends are locking or just one.
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Old 01-07-2009, 03:27 AM   #2
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Re: factory lockers

GM stopped putting posi's up front in 73-ish. Rear would be a Govlock...
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Old 01-07-2009, 06:49 PM   #3
Captkaos
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Re: factory lockers

1973-1978 12 bolts would have a Eaton LSD (clutch type)

I have seen no documentation of any 1973 - 1987 trucks with a front LSD.
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Old 01-07-2009, 08:06 PM   #4
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Re: factory lockers

Quote:
Originally Posted by Captkaos View Post
1973-1978 12 bolts would have a Eaton LSD (clutch type)
Is that true for 2WD? My '77 had a govloc.
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Old 01-07-2009, 08:28 PM   #5
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Re: factory lockers

that is in general. I have seen some 78's with them, but i think they officially swapped in 1976 from what i can tell.

It basically follows GM's normal change overs, they use them till they are gone.
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