Any suggestion? I have the special tool but unable to push in and release the lines. they are a little rusty. Got to love new england. I unsrewed the fitting from the radiator so that I could remove. The new radiator has new quick connect fittings and I would like to use the new ones. help!!!!

 

Spray with PB Blaster and let sit for an hour.....then use the tool.... if it doesn't release then, hit it again and wait overnight.

 

Even with PB Blaster soakings, I couldn't get mine lose (too rusted), and ended up purchasing a new radiator and lines. Good luck!

 

After you install the new ones you may want to cover then with
some thing like cosmoline >>>Cosmoline - Wikipedia, the free encyclopedia

Sean

 

I have had the best luck with Kroil.

 

or Fluid Film

 

cosmoline -------- grease, water proof KROHL EXCELLENT OIL THE ONLY THING I USE TO CLEAN MY GUN BARRELLS

 

Start shopping for a Radiator...

 

Thanks for the suggestions on quick connector release, none of the suggested additives work as well as I would have liked,even warmed them up a little to get the oil in. I was able to loosen the quick connectors from the radiator and reuse the the old fitting and lines on the new radiator.
The trucks been down for over three weeks now, the first new radiator arrived damage by FED-EX top tank broken, so finialy the second replacement arrived yesterday, Wow I'm ready to roll. Inspected the replacement and all looks good so we carefully install this nice brand new shiney radiator, also did the blue spring thing while we were in there.
So now we have all buttoned up, let"s add some coolant, after the first gallon let's check for leaks. Holly $$!@#$ she's dripping near the drain valve, aha maybe we did not tight the valve, nope thats ok. Took a closer look and its leaking between the tank and core where they are crimped together. If it were not for bad luck I'd have no luck at all. Guess we will do it again tomorrow, I'v had enough today, It must 5 o'clock now!!!