I replaced the two transmission cooler lines on my 98 1500 (46RE Trans) last night. Everything went well except that I am getting leaks from the two new quick conncect lines going to the transcoller. When I rem,oved the fittings I found o-rings jammed inside. One was split and other seems fine. I imagine that they go inside the fitting but am not sure where and what to do about the broken one. Do they make replacement Orings for these and where inside do they go?

 

Your local auto parts store should have a selection of O-rings in a box behind the counter. Take the undamaged one so they can measure it.