I want to change the trans fluid in my 97 f150 manual transmission.I'm wondering what size of wrench is needed for the drain and fill plugs. Thanks

 

1inch wrench and socket.

 

I tried a 1" box end but too small , maybe it's metric.

 

I just went under my truck and the socket fit but not that great 1inch socket use some wd-40 and then use a adjustable wrench. I got that info from some guy on v6 f150.com he has this whole how-to on the change of the fluid. Sorry good luck.

 

It's actually 24 mm.

 

The plug is such a shape that a crescent wrench will work just perfect. I have used it to change trans. fluid on my 97 every 15k and nary a problem.