well i looked the other day and say that my rear diff was leaking a little, so i told em about it and the said thed fix it at the same time there were diagnoseing the other problem. so he had to take it apart to put the new gasket on, and yes he said there was no grease or very little in the slip yoke. and i didnt mean to sound ungratefull for your help at all!!! i appriciate all the heklp you gives can give me weather its exactly the problem or just an educated guess, it gives me a sarting point so thatnk so much for your help guys!