I just serviced my 722.4 today. Did the K1 kit (2/3 flare). My reverse ticked today for the second time so I'm just waiting for the day for that to fail to do a 722.3 conversion.

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Only diesels in this driveway.
2005 E320 CDI 243k Black/Black
2008 Chevy 3500HD Duramax 340k
2004 Chevy 2500HD Duramax 220k