ok i have a manual transmission and when i am accelerating in 2nd 3rd or sometimes even fourth it like the transmission slips. i noticed i have a lot of play in my front u joint could this be the problem or is it something completely different. thanks

 

I'd replace the U-joint for sure, if there's play in it. You don't want it to fail while you're driving, it will probably damage the drive line, and $30 is cheap insurance. I'd also check the tranny fluid if you haven't already.

 

i would replace the ujoint but the front ujoint wont slip could be your clutch since you have a manual transimision

 

thats what i thought but the rpms are staying steady

 

check your trans mounts to. if it happens while your shifting gears that tranny is shifting from the torq of the motor. and def replace the u joint