Diff fluid change question
Thread Starter
Burning Brakes
Joined: Jun 2016
Posts: 1,058
Likes: 108
From: Ohio
Diff fluid change question
hey everyone
I was getting ready to change the rear fluid and I wanted to double check - for this the car should be driven a little first to get everything stirred up to get pumped out?
and does the whole car need to be lifted? if so - just high enough for you to get under?
again just wanted to double check everything before getting started -
any help would be great
thanks
Sean
I was getting ready to change the rear fluid and I wanted to double check - for this the car should be driven a little first to get everything stirred up to get pumped out?
and does the whole car need to be lifted? if so - just high enough for you to get under?
again just wanted to double check everything before getting started -
any help would be great
thanks
Sean
Team Owner
Joined: Dec 1999
Posts: 34,873
Likes: 487
From: Lacey WA RVN 68-69
NCM Sinkhole Donor
There is no factory drain plug on the C4 diff case. Some of the Corvette catalogs have self-tapping plugs but you would have to drill a hole and then thread in the plug. Once that is done, you could use a small amount of anti-seize on the plug threads.
Given that there is no specific requirement for changing the gear oil, getting a $5 hand pump from Harbor Freight would be a better deal.
Last edited by c4cruiser; Aug 3, 2017 at 11:33 AM.
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Thread Starter
Burning Brakes
Joined: Jun 2016
Posts: 1,058
Likes: 108
From: Ohio
thanks everyone - definitely used the harbor freight pump - probably over tightened the plug - I did not tighten it to the point it would not move - there is still a few turns left - but I feel like I may have snugged it a bit extra -after I realized that I did not want to loosen it - too tight in there for any kind of torque wrench that I have - I think it asks for 10 or 12 ft/lbs?
anti seize would have been smart - I did not think of that
hopefully it will be ok?
thanks
Sean
anti seize would have been smart - I did not think of that
hopefully it will be ok?
thanks
Sean
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 412
From: WV
