Am finally at the stage where I can road test my two year project. I have had tranny rebuilt, transfer case rebuilt, u joints are new, engine swap, new clutch and pilot bushing. Drives and shifts great. Problem is when i reach about 25 miles per hour and let off to coast or push in clutch i hear a rattling noise. It almost sounds like a gear is rattling around near the tranny but i have pulled it off three times along with the t-case to check it out. Any thoughts on what may cause such a thing?