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03-21-2020, 12:43 PM | #1 |
Registered User
Join Date: Nov 2011
Location: USA
Posts: 409
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What reared end diff gear lube for a stock 1968 Chevy C10 12 bolt rear?
What weight of differential lube do you guys use for your differentials. I need some for my 1968 Chevy C10 fleetside shortbed with a 12 bolt Chevy.
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03-21-2020, 01:25 PM | #2 |
Senior Member
Join Date: Jan 2001
Location: Orem, Utah
Posts: 7,976
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Re: What reared end diff gear lube for a stock 1968 Chevy C10 12 bolt rear?
I use 75W90. If it has posi, I use Royal Purple synthetic - it doesn't require any friction modifiers.
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I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson |
03-21-2020, 01:38 PM | #3 |
20' Daredevil (Ret)
Join Date: May 2003
Location: Jefferson State
Posts: 13,722
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Re: What reared end diff gear lube for a stock 1968 Chevy C10 12 bolt rear?
I use Mobil 1 75W90 in both diffs (F&R) and in the t-case.
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- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
03-21-2020, 03:04 PM | #4 |
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Join Date: Nov 2011
Location: USA
Posts: 409
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Re: What reared end diff gear lube for a stock 1968 Chevy C10 12 bolt rear?
Anybody know how many quarts a C10 12bolt truck differential takes?
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03-21-2020, 03:23 PM | #5 |
Senior Member
Join Date: Jan 2001
Location: Orem, Utah
Posts: 7,976
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Re: What reared end diff gear lube for a stock 1968 Chevy C10 12 bolt rear?
Roughly 2 quarts.
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I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson |
03-21-2020, 03:29 PM | #6 | |
Senior Member
Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,504
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Re: What reared end diff gear lube for a stock 1968 Chevy C10 12 bolt rear?
Quote:
GL-4 for normal differentials, GL-5 for limited-slip, ''Positraction'' types. In Tucson, where it can hit 114*F on a ''nice day'' in the Summer, I use 85-130 wt.
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