1996 GMC Sierra What kind of tranny oil?

1996 GMC SIERRA
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1996 GMC BLUE & SILVE
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Transmission problem
1996 GMC Sierra 6 cyl Two Wheel Drive Manual 100.00 miles
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Ther are two kinds of tranny oil for a 5 speed tranny what do i use? Thanks.
May 4, 2008 at 4:17 PM
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MASTERTECHTIM
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call the dealer. i think they updated the fluid to synchro mesh. best to be sure, call the gm parts department, they will tell you for sure
May 4, 2008 at 4:20 PM