Rear Freeze Plug signs and symptoms

[White618]

Dumbfounded here- just replaced the fluids in my 87 W100 4x4 318ci 2 bbl auto trans- while it was warming up something in the rear of the engine let loose and coolant gushed out of the rear of the engine and poured down (real fast) between block and tranny- Is there a freeze plug back there? I can't find too much info on it yet- I'm in the South so I figure it may have rusted out or heater core (but saw no water inside passenger well) and this was a river of anitfreeze in the middle of the truck- I'm hoping I don't have to pull the engine or trans to fix!! any help or steering in right direction appreciated!

 

[crazzywolfie]

i believe 2 on the block and 1 on the back of each head. all you have to google is 318 rear frost plug and lots of pictures show up.

 

[White618]

Thanks! good info!