The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - transmission cooler lines/connections Q's

LS short box · 05-24-2023, 04:46 PM

Maybe bite the bullet and buy a new cooler with NPT fittings? You don't need to use PTFE -6. Regular -6 SS hose is fine pressure wise. I've used Russell, Earl's and Summit and again never a failure.
In lieu of a new cooler you could have -6 fittings tig welded on as said above.

05-24-2023, 04:46 PM	#5
LS short box Registered User Join Date: Jun 2015 Location: Carlos MN Posts: 1,927	Re: transmission cooler lines/connections Q's Maybe bite the bullet and buy a new cooler with NPT fittings? You don't need to use PTFE -6. Regular -6 SS hose is fine pressure wise. I've used Russell, Earl's and Summit and again never a failure. In lieu of a new cooler you could have -6 fittings tig welded on as said above.