I am look to replace my leaking transmission cooling lines. I have found two part numbers on Rockauto and Amazon. ACDelco P/N 25999419 and P/N 25999418. Not sure which one. My truck is a 2010 Siverado, Quad cab, 5.3L, 6sp (MYC) transmission.

I plan to remove the old ones, take them to a hydraulic shop and have new hoses crimpped on.

Any help,