Keith Browning Posted January 10, 2015 Share Posted January 10, 2015 Silly as it sounds I have never heard of such a tool but it stands to reason that they exist. A new tech started working at my dealer and shared this answer to dealing with the 6.7L secondary radiator petcock. You know, the one oriented toward the bumper that can fight you when you try to open it? Yeah, that one. Use the small socket on a 1/4" ratchet and open that thing easily. http://thexton.com/index.cfm/pageid/27 1/4” drive set includes a steel universal socket to fit radiators, engine blocks, storage tanks, etc. with an O-ring to hold a 7/8” wrench in place. Set also has a molded plastic socket to fit narrow wing plastic drain fittings, both plug and flow-through types. Quote Link to comment Share on other sites More sharing options...
tonybullitt Posted January 10, 2015 Share Posted January 10, 2015 I have not opened a secondary radiator petcock yet. I always take the hose off at the trans cooler. I think I will order and give it a try. Quote Link to comment Share on other sites More sharing options...
8WA Sman Posted January 10, 2015 Share Posted January 10, 2015 I should probably buy the set, I made my own one day when I was in a pinch. 1 Quote Link to comment Share on other sites More sharing options...
forddieseldoctor Posted January 12, 2015 Share Posted January 12, 2015 I knew they existed for years. A former co-worker had one from his gm days. I bought one from Snappy a few months back. Quote Link to comment Share on other sites More sharing options...
miketremblay Posted January 13, 2015 Share Posted January 13, 2015 HAD THIS TOOL FOR 2 YEARS AND LOVE IT Quote Link to comment Share on other sites More sharing options...
tonybullitt Posted January 14, 2015 Share Posted January 14, 2015 Got mine from amazon in the mail today. Quote Link to comment Share on other sites More sharing options...
8WA Sman Posted June 9, 2017 Share Posted June 9, 2017 I have had these tools for a while now....But I actually find it easier just to pop the coolant hose (7G071) off the trans cooler (7A095) Quote Link to comment Share on other sites More sharing options...
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