Quote Joe:
"The connections at the oil cooler were more difficult to deal with than they should have been. "
+1
They can be a challenge. I found that by pulling the oil filter first... and using "bent nose" pliers,,, it worked out pretty good. Just make sure you cover the oil filter mount with a plastic bag and zip tie... otherwise you will be changing the oil when the coolant flows out of the pulled oil cooler hoses,,, and dumps into the oil filter mount.
On the new lower hose, (with oil cooler), the clamps weren't orientated quite properly. So I loosened them from the glue on the hose and repositioned them facing down. Much easier to install then. Oil filter went back on last.