Rear Diff plug size Help

[Buzzard2]

Going to change the rear diff this weekend. 2012 with a 6.2 I need the plug size for the refill. I don't have any big allen wrenches. I would like to order a set do you know if its SAE or Metric. a 3/8" extension seemed to fit pretty good can someone please confirm.

Thanks,

 

[BenBB]

Yes just 3/8" drive extension, nothing fancy needed.

 

[Dane]

Yes just 3/8" drive extension, nothing fancy needed.

This. Don't overthink it.