2004 350 rancher 4x4: the motor started knocking, sounds like it is the connecting rod , from what iv heard rancher's are bad about the wrist pin hole getting wallered out creating alot of play. I would like some opinions on should i just get a connecting rod done to it or get both crank and connecting rod?i was going to send it off to mr crankshaft but wanted some feedback if they were any good or not. Also topend has about 20 hrs on it if not less and started smoking agian any ideas?