JUST FINISHED FRAME OFF RESTO ON MY 06 SUPER DUTY P.S. ONE PROBLEM I RAN INTO WAS THE PUSH LOCK TRANS LINE FITTINGS. WHAT A PAIN IN THE YOU KNOW! IAM A MACHINIST BY TRADE SO AFTER NO LUCK IN FINDING REPAIR FITTINGS I MADE MY OWN. IF YOU REMOVE THE FITTINGS OUT OF THE RADIATOR YOU WILL FIND THE THREAD IS M18X1.5. I MADE SOME BRONZE ALLOY FITTINGS M18X1.5 MALE ON ONE END,AND3/8 FEMALE ON THE OTHER END. WITH THIS FITTING YOU CAN SCREW A 1/2"COMPRESSION X3/8 MALE TUBE FITTING INTO THAT AND TRIM THE BUBBLE OFF THE LINE PUT IT TOGETHER. SINCE I MADE MINE IFOUND THEM ON FITTINGS&ADAPTERS.COM. PART # 32MM-18-6. AND IF YOUR THREADS INTHE RADIATOR NEED CLEANED UP THE TAP FOR THE 18 MM SPARK PLUG IS WHAT YOU NEED. IUSE THE FORUMS ALOT FOR INFO HOPE TO RETURN THE FAVOR WITH THIS INFO. THESE FITTINGS WILL GIVE YOU ALOT OF OPTIONS FOR REPLACING OLD LINES.