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02-10-2015, 08:30 PM
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#1 |
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Registered User
Join Date: Feb 2007
Location: Beaverbank, Nova Scotia
Posts: 20
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69 gmc manual transmission
I have a 69 gmc with factory 4 speed manual transmission and want to know if anyone has put synthetic oil in theirs. If so any problems. What did you use for oil?
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02-10-2015, 08:36 PM
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#2 |
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Registered User
Join Date: Dec 2014
Location: Newark, De
Posts: 58
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Re: 69 gmc manual transmission
I ordered gl-4 gear oil from amazon.
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02-10-2015, 11:43 PM
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#3 |
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Registered User
Join Date: Jan 2014
Location: Wasilla Alaska
Posts: 537
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Re: 69 gmc manual transmission
We are getten 50 or 60 or more years from the trannys usen reg. 90 w. gear oil like the books says. if it broke don,t fix it.
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