Lesson learned on my 235........check the oil pan bolts for tightness. Of course that will not help a front cranshaft seal, completely worn rear rope seal, but may possibly help on the rear. I took my truck to my local mechanic back in 2014 along with a new rope seal and the tools to replace it. He sent it back after pulling the pan and replacing only the pan gasket. No more oil puddles. Another area on a 235 to look at is the side cover ( valve lifter cover ). MIne leaked at the rear lower corner and the oil ran right down the side and dripped off the back of the pan. Sort of mimicking a rear seal leak. One old timer suggeted that if you didn't see oil on the driveway under the pan, you best check the oil level. I bought a drip pan at the local auto parts store and have it staged on the floor in my garage for the occasional phantom drip. Good luck on your repair.

Ron - - Dusty53
1954 Chevy 3604
In the Gallery Forum
"You can't dance with the Devil and then wonder why you're still in Hell."
"They will forget what you've said, and they will forget what you have done but they will never forget the way you made them feel."