Have a 2001 6X6 600 miles well maintained. Just picked it up at shop for brake problem. On loading it noticed a clunk around 4 to 5mph louder when
turning. They can,t work on it before I go hunting spent all day trying to locate problem. Put it on stands and tried to isolate it. Seems to be coming from middle chain. Sprockets are ok chain is tight and all fastners are fine.