its been doing it at all speeds. somtimes at idle sometimes at highway speeds sometimes right after you atart it and it doesnt do it all the time it has went sometimes a week or 2 before doing it again. im going to try the fuel filter this monday when i get paid. and what was the other thing? i have never heard of one of those before. and on my jeep the 93 grand limited how hard is it going to be to chang a front axle shaft? i broke the cv joint on te driver side and i have never changed an axle before.

thanks for all the help i appriciate it greatly

Marty