diff fluid c3 1972
Burning Brakes
Joined: Oct 2018
Posts: 1,031
Likes: 465
From: Henderson, NV
St. Jude Donor '19-'20-'21-'22
I changed my rear diff fluid today. I followed the advice of a forum tech coordinator Gary (GTR1999) and used Lucas 85w140 Gear Oil with 2 bottles of GM posi additive.
I drained as much as possible, added the GM additive first, then the gear oil. It took a little less that a quart and a half of the gear oil (after the additive), before it started pouring out of the fill hole. Does this sound right? I'm not sure what the correct capacity is.
Thanks
I drained as much as possible, added the GM additive first, then the gear oil. It took a little less that a quart and a half of the gear oil (after the additive), before it started pouring out of the fill hole. Does this sound right? I'm not sure what the correct capacity is.
Thanks
Last edited by fastimes; Apr 30, 2019 at 11:19 PM.
Is my vette stock?? HAHA
Joined: Oct 2015
Posts: 20,145
Likes: 9,274
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
Yes, thats the only way to get it in and once it back flows, you're full.
Last edited by Rescue Rogers; May 1, 2019 at 10:32 AM.
