If you are using a Griffin or other than OE Radiator and it has 1/4 NPT fitting holes for the transmission lines, you will need this info.
Griffin uses 1/4 NPT instead on the factory 1/8 NPT.
The transmission cooling lines are 5/16 with 1/2-20 thread.
You will need to buy from O'Reilly or Summit
EDELMANN part number 148540 it's 5/16 x1/4
Sadly Griffin didn't have this information to share until I called them, as well as Summit.
www.summitracing.com
Griffin uses 1/4 NPT instead on the factory 1/8 NPT.
The transmission cooling lines are 5/16 with 1/2-20 thread.
You will need to buy from O'Reilly or Summit
EDELMANN part number 148540 it's 5/16 x1/4
Griffin ExactFit Radiator Details for - 1969 Dodge Charger PartNumber: 5-70004
Griffin ExactFit Radiator Details for - 1969 Dodge Charger, PartNumber: 5-70004, 1966 - 1969 Belvedere, Satellite, Coronet, Charger, Mopar Big Block B Body, Auto Transmission - ExactFit
www.griffinrad.com
Sadly Griffin didn't have this information to share until I called them, as well as Summit.

Edelmann 148540 Edelmann SAE 45 Degree to NPT Adapter Fittings | Summit Racing
Free Shipping - Edelmann SAE 45 Degree to NPT Adapter Fittings with qualifying orders of $99. Shop Fittings and Adapters at Summit Racing.
