Originally Posted by
Catlewis
Couple thoughts on your current issues,,,,,, regarding the oil leak, how old is the oil (when was it last changed), and what weight oil do you have in the crank case? Manufacturing tolerances on these old engines require thicker lubricants than modern vehicles. I'm using Castrol 20-50 in mine right now. It also leaks a little at the rear main. Plan is to continue driving and monitor oil level.
The trans noises you mentioned,,,,,,, before digging into the trans, first make certain your mounts are good + carefully inspect all mechanical linkages that pass through the floor or firewall to verify none are missing grommets or contacting the body (resting or under acceleration or deceleration). Sometimes the natural torque / twisting of the engine and or trans under acceleration or deceleration results in linkage contacting the body and resonating thru the sheet metal producing all kinds of "OMG" noises.