[mudtoy67]

I haven't had much luck searching. Does anybody know what is needed to remove the block drain on an '83 Jeep CJ7 258? It looks like a square drive, but 1/4" drive ratchet is too small, and even after sneaking a screwdriver in behind the header to scrape it out, a 3/8" drive doesn't seem to fit. Is it possibly a 5/16" drive, if there is such a thing? Or is it a hex drive(allen key), I can't really see it that well and I don't want to pull the header just for this. Any help is appreciated.

 

[Ghetto Fab.]

I honestly have no idea. But, I have seen 5/16" square drive plugs before. Apparently they make special sockets for them.

Kevo

 

[hotwheelsYJ]

Mine was 5/16 square.
I used a peice of square keystock and put a wrench on it.
I also replaced it with a hex keyed fitting so I wouldn't have to go through it again

 

[gilraine]

i found a bolt that the head fit into and twisted the bolt with vise grips...