My tranny is pretty loud in 5th gear so iam switching to royal purple in the near future. Fo the time being I was gonna put some lucas in it for the time being. What is the correct socket size I need to get the filler nut out. a 7/8 is kinda rounding it off so I stopped so I need correct size before I put some hammer to it. thanks

 

7/8" = 22.225 mm...so maybe a 22mm?

 

How tight is a ¹³/¹6"? If its a fuzz to tight its a 21 mm.

 

Errr... Its the one that fits...

Should have a full set of Metric and SAE before working on any truck made in the last 30 years...

 

One in every crowd