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Over drive unit 88 vette

ronmichalek

Member
Joined
Jan 4, 2004
Messages
10
Location
ct
Corvette
1988 red convertible
How much ATF fluid will the over drive unit take when doing a fluid and filter change?What is the best way to put the fluid in to the unit?
 

c4cruiser

Well-known member
Joined
Feb 22, 2002
Messages
971
Location
Lacey, WA USA
Corvette
87 Gold Z52 Coupe 02 EB Z51 Supercharged Coupe
The OD unit takes just over 2 quarts of Dexron II/III. There is a fill plug just above the front cooler line.

Most auto parts stores sell a small plastic pump that fits a standard 1-quart oil bottle. There is a length of plastic tube that comes with the pump that attaches to the pump nozzle.
 

McSnagg

Well-known member
Joined
Nov 26, 2006
Messages
59
Location
Nebraska
Corvette
1988 Triple Black Convertible Z52 4+3
Make sure you can remove the fill plug before servicing the unit. I'd use an 8-point socket to get a good grip. I rounded off my fill plug and never did get it out. Just a word of caution.

I found the filter at CARQUEST. It is Pioneer part # 746001. Much cheaper than the specialty suppliers.

Have fun!
 

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