VIBRATION AT 55 & 1500 RPM 2003 s-10 4 X 4 VORTEC

OK I have 2003 VORTEC MOTOR S-10 4 X 4 and I have been geting a vibration at 55mph and 1500 RPM when I get the vibration I wanted to see if it was drive train related so I put it in to NUTRAL and it went away HUH seems like the u-joints but I had them 2 of them ( i think ) 1 1/2 years ago 20 thousand miles ago does the front drive shaft spin only in 4 wheel drive or is it spin all the time BIG QUESTION how many u-joints are on my truck? thanks for all the help ANTHONY

OK I have 2003 VORTEC MOTOR S-10 4 X 4 and I have been getting a vibration at 55mph and 1500 RPM when I get the vibration I wanted to see if it was drive train related so I put it in to NEUTRAL and it went away... HUH seems like the u-joints but I had them 2 of them ( i think ) 1 1/2 years ago 20 thousand miles ago does the front drive shaft spin only in 4 wheel drive or is it spin all the time BIG QUESTION how many u-joints are on my truck? thanks for all the help ANTHONY

It's probably time to balance all four tires as 1 is most likely giving you your vibration. And your truck has 2 u-joints on the rear driveshaft and 1 in the front.

Shifting to neutral removes power from the driveline, (and the wheels). If the vibration goes away, that tells you that it's not the tires and that the problem is driveline related. Yes, the front driveshaft turns whenever the vehicle is in motion.

ok so It sounds like my front drive shaft needs to be replaces and that has nothing to do with the main drive shaft ( those have been replaced 1 1/2 years ago ) please give me ACCESS TO THE HOW TO SECTION I DONT KNOW WHY I cant get into that many people said I should be posting there but it say when i try I'M NOT ALLOWED thank you for all your help Anthony

SORRY front driveshaft u-joint I ment to say thanks Anthony

This link should take you right to the How-To section: http://www.automotiveforums.com/vbulletin/forumdisplay.php?f=2069

THIS IS WHAT IT SAY'S WHEN I TRY TO POST THERE......
S10SNODOG, you do not have permission to access this page. This could be due to one of several reasons:

THIS IS WHAT IT SAY'S WHEN I TRY TO POST THERE......
S10SNODOG, you do not have permission to access this page. This could be due to one of several reasons:You can read the forum, and post there, but you are not allowed to start a thread there or edit your posts. That forum is for informative threads only, threads have to be approved and moved there by a forum moderator.

This thread is in the correct place for diagnosing your problem, and receiving help to correct it.