Drilling out the factory ATF cooler bypass valve

[EMut]

I live in central Texas so It's never really that cold here.

Has anyone gutted their factory thermal bypass valve???

I assume that if it didn't work I can just order the ATS one.

 

[crash68]

Someone on the forum looked at trying do just that and came to the conclusion the transmission would overheat as the fluid wouldn't be forced to the cooler.
Check out this thread, there's mention of a recently available bypass kit:
https://www.ramforum.com/threads/normal-trans-fluid-temp.171703/

 

[18CrewDually]

It's not just drilling out the old valve. You'd have remove the plug and gut the brass valve & spring. Then bore it for an interference fit plug to block the cross passage. Then plug the access bore hole. Faster and cost effective to buy one on Amazon.


Heres a good write up and solution for a little over $153.
https://www.mishimoto.com/engineering/2020/01/dodge-ram-67l-cummins-thermal-bypass-valve-rd-pt1/