Need help with 7 1/4 rear drain plug

[Oldschoolcuda]

Help guys. Want to change out the ancient fluid in my valiants rear and having a hard time recalling what the heck fits the plug. Know its not a torx but appears to be 8 sided from the finger test i gave it this afternoon. Will a 3/8 or 1/2 inch breaker fit? Thanks for help.

Oldschoolcuda

 

[RedFish]

The square end of your pull bar.

 

[Oldschoolcuda]

Thanks RedFish. After looking again its got to be 1/2 inch drive.

 

[RedFish]

I've removed that plug to top off the oil . To change the oil I alway remove the cover.

 

[Oldschoolcuda]

I have a electric suction pump I'll use to remove old fluid from plug hole. Hopefully.

 

[cudamark]

It's much better if you remove the cover and flush out all the sediment in the bottom. Plus, you can get a better idea of the condition of the gears with the cover removed.

 

[Oldschoolcuda]

Thanks RedFish & cudamark. Didn't want to deal with shipping on gasket for cover since she needs to be ready for a road trip to mopar madness this weekend , or just using silicone but my local NAPA actually has one in stock, removing cover definately best way to get all of old fluid out & check condition. Pretty sure she has never been opened up plus it is a rare 7 1/4 sure grip. Thanks for the help.

Oldschoolcuda