Can ya give some more background as to why you replaced the rod bearings in the first place? Wondering why there was such a good deal on full gasket set, rings and rod bearings....recall what brands were on the boxes?

Start the truck up, make sure its secured in place and climb underneath it...if the exhuast amplifies the noise and it sounds like a metal thingy hitting another metal thingy kinda hard then good chance (more like definate) slop in one of the connecting rods large end. Were you positive to torque down the rod caps...easy to get distracted ya know...all it takes is a buttered up big breasted honey in a skimpy bathing suit, kids playing and screaming- or a nekkid woman going by walking her dog and thats that...engine is destined for problems. <img src="/forums/images/graemlins/smile.gif" alt="" />

Cheap tool that is a must when diagnosing noises is a Mechanics Stethescope. Cost about $4 at Harbor Freight and will will help you pinpoint the source of all kinds of noises. Just dont be letting the end hit anything when them doodads are in your ears.....hurts like a sumabitz!

~Darin <img src="/forums/images/graemlins/baby.gif" alt="" />