I have a 93 with a 350. It has a stock oil cooler (local parts pros scratch heads) and now no one can seem to match my oil sending unit with any regular available units. This truck now has 235,000 miles and is still a turn key truck. Could this be some oddball 350? It's a Silverado,but that should'nt make any difference with the drivetrain options...and it's a 2 door. It seems to be an average throttle body motor,but whats with the oil cooler option?

 

Contact me about your oil cooler problem please, I'm not sure I can help you but I have some questions concerning how your oil cooler is mounted and plumbed.