I am looking for a set of old oil cooler lines, just the tubing parts will be great. I am working on something to see if I can figure out a better (read cheaper too) way to replace these items. I know that the newer truck use a different size fitting and lines but has anyone looked into see if the older ones can be converted to the larger size easily??

i think the block is 3/8 pipe on the up to 96 engines and goes to 1/2 pipe on the later oil sprayed engines. I just used old race car junk with AN 8 going to my own oil cooler i installed.

kind of the idea I want to try but need to see the fittings before tearing mine apart