antifreeze drain plugs

[my98z71]

I would like to flush my antifreeze but when I looked under the truck I didn't see the plugs. I think there are supposed to be 2 drain plugs on a 98 z71. Can you give me a pointer on where to look for the plugs? Thanks

[Mr. Smith]

I would like to flush my antifreeze but when I looked under the truck I didn't see the plugs. I think there are supposed to be 2 drain plugs on a 98 z71. Can you give me a pointer on where to look for the plugs?  Thanks

 

<{POST_SNAPBACK}>

 

 

 

IF it is the same as my 97 you have to remove the knock sensor on the right side by the starter. Left side is a square plug behind the motor mount.