Should have posted here first!

I got a CSF 865 to replace the cracked radiator in my truck. The auto transmission posts on the original accept a 3/8" ID hose while the new one has about a 5/16" ID hose. Is this a common problem? Several online radiator dealers have suggested this unit as replacement. I tried the existing hose, but it seems like it never gets snug enough. I haave not installed the unit in the truck yet. I think I need an OEM and not an Aftermarket. Has anyone had this problem? Thanks


Thanks bkey71 for your help.

 

I had another thought to add, you could run an external trans cooler and just avoid the radiator lines altogether. Just plug them. This all depends what the cost factor is.