Rear freeze plug replacement

[garyp285]

Is it possible to replace the rear freeze plug in the block without pulling the head, and since it only leaks while driving, would a pressure relief kit help keep this from leaking?
Thanks for any help.

 

[sag2]

They used to blow out on a small number of trucks and I was making and selling a plate to install and hold them in. If the trans is out you can probably sneak the plug out and back in.

 

[Joseph Donnelly]

Yes, you can get to it with the trans/bell housing out. I also made a plate to retain that plug. It bolts to existing threaded holes near the plug.

 

[garyp285]

Sorry I was wrong, it's leaking on the back of the head either from the screw in plug, or the small freeze plug that are beside each other. I just got back from a 40 mile drive, and looked at it with a flashlight, and the back of the head is wet.

 

[sag2]

I found my old photos. The small plug is behind the adapter housing so I doubt that one is leaking. It should be the one that I made the tool to install and retain in place. It could also be the coolant tube that has to be moved to use the installer.

 

[garyp285]

Thanks for the pics, I'll try cleaning the area, and re check it again with a flashlight, and maybe a mirror.