Just ordered metal tube from Cummins that sprang a leak yesterday (return line from heater on firewall $257 !!!! Dodge ,Im guessing would be more. What kind of treat am I in for switching out the old one and BTW another 400 for the other steel tube that runs down along block!!! What the hay ??? So will i have to drop turbo ? I just want to get parts for now...Thanks ,Mark 2003 DRW 3500 4x4