Manual transmission drain and fill plugs

FARMBOY12008

MEMBER
1989 CHEVROLET CHEYENNE
6 CYL
2WD
MANUAL
230,000 MILES

Where are the manual transmission fluid fill and drain plugs on my 89 chevrolet silverado, it has the normal duty aluminum one piece transmission

Tuesday, December 28th, 2010 AT 3:41 PM

3 Replies

DOCFIXIT

MECHANIC
18,828 POSTS

The fill plug is in the side of the transmission. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

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Tuesday, December 28th, 2010 AT 3:54 PM

TTYSON

MEMBER
1 POST
1989 CHEVROLET CHEYENNE
5.2L
V8
RWD
AUTOMATIC
180,000 MILES

Where is the auto transmission drain plug?

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Friday, February 26th, 2021 AT 5:09 PM (Merged)

JOHNNYT73

MECHANIC
924 POSTS

If there is not a drain plug on the transmission pan. Then the only way to drain the fluid is to remove the pan. Be sure to only loosen the bolts most of the way and then just lightly pry it apart from the transmission to let it drain some. Then begin removing bolts at one corner to let it hang and drain. Be sure to get a new gasket for the pan (count how many bolt holes there are to find the correct gasket). You will want to change the filter to while you are in there.

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Friday, February 26th, 2021 AT 5:09 PM (Merged)