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Matt Man · 01-27-2020, 07:45 PM

Could have came with a g80 which required the additive. Once you have the cover off you will know if it has one or not.

01-27-2020, 07:45 PM	#2
Matt Man Registered User Join Date: Oct 2009 Location: Buhl, Idaho Posts: 1,438	Re: Changing rear end fluid posi or not Could have came with a g80 which required the additive. Once you have the cover off you will know if it has one or not. __________________ 86 c30 crew cab dually 454/400 4/6 drop SOLD 1-8-11 1981 chevy K10 short Bed Scottsdale SOLD 10-26-2020 67 GMC Stepside Straight six/3 on the tree "The Peach" 2020 Silverado Double Cab LT Z71 5.3 8 speed Daily Driver K10 build http://67-72chevytrucks.com/vboard/s...d.php?t=671934 The Peach build http://67-72chevytrucks.com/vboard/s...d.php?t=733903