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Mystery coolant leak

2014 Views 86 Replies 11 Participants Last post by  Wc203
Hey guys I have a coolant leak from my 4BT and am convinced it’s my freeze plug , but I wanted to do my due diligence first before pulling the trans and T case to make sure that’s what it is . There’s coolant leaking from the bell housing cover dripping down to my sway bar and trans . No other obvious leaks . And unfortunately no access to the rear freeze plug due to the AA adapter to my 4L85E trans…. Anyone have the Cummins # for the rear freeze plug or pictures so I can see what I’m working with , couldn’t find anything on the web.
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Forgot to tighten last head bolt?

Ed inCO
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Someone in the past might not have tightened those bolts correctly.

Ed in CO
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Unless you have lots of room up front, have to start from scratch on the front end when you decide to put i’cooler in, might want to at least mock it up while apart and get engine set back, lower crossmember, doghouse built, etc., while all apart!

Ed in CO
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