Okay, So back in June, I purchased a 2002 Chevy 2500 non HD. It had 140k on it and for $1500, I couldn't go wrong. Anyways, So in about September, i noticed oil leaking from the oil cooler line connector where it goes into the radiator. Every auto parts store around and Chevy dealer around, could not give me the right part. 5 wrong parts, and still no fix. Finally one dealer was nice enough and replaced the oring inside the connector free of charge, but still couldn't find out why my radiator connectors are different. So 3 days ago, I notice tranny fluid leaking from the same type of connector.( bottom passenger side of radiator) After 4 wrong parts, still no fix. Does anyone else have this problem? And its not that the connection to the line is different, it is the threads that are the problem. Either too big of diameter or too small, never the wrong threads.

 

I really need some input here, my truck is my only way of transportation and it is not in driveable condition right now.

 

Can you get some images?

 

Need some pics.

Sounds like the radiator was replaced sometime before you bought the Truck.

After market replacements seem to have this sort of problem.You may have to do some "custom" fitting work to make it rite.