Driveline vibrations?

[mac_daddy]

I've just started experiencing a massive vibration between 15-25 mph and was thinking could this be the driveline? how would i go about checking this? i've heard something about the carrier bearings going out how do i kno if mines bad?thanks

[evildky]

the carrier bearing is a common issue, if you can move the driveshaft by hand the bearing is bad

[mac_daddy]

as in loosin the bolts by hand or just pull apart the driveshaft? it's probly better to just replace the whole driveshaft with a one piece if its bad right?

[alright2020]

just hop under the car and grab the driveshaft and try to move it...if you can then the carrier bearing is bad...you could also have bad ujoint but those you wouldnt be able to tell jsut by trying to move it... and yes you woudl have to replace whoel shaft

[mac_daddy]

cool thanks. thats what i've been hearing from other people to is just trying to move it in gear and turn the wheel see if theres any play. i'll probly jack it up in a lil bit and check.

[mac_daddy]

Ok so i check my driveshaft. Jacked up the car put it in gear tried to spin the driveshaft and wiggled barely at all like a driveshaft normally does i believe. so what about the u joint? how do i know if that is good or bad? i'm almost positive this vibration has to do with the driveshaft..