2nd Gen Ram Tech 1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

How do I know if my u-joints are bad?

  #1  
Old 09-17-2010, 03:29 PM
Fubba's Avatar
Fubba
Fubba is offline
Professional
Thread Starter
Join Date: Nov 2005
Posts: 185
Likes: 0
Received 0 Likes on 0 Posts
Default How do I know if my u-joints are bad?

I have a 96 with a 5.2l. Between 15 and 30 mph, there is a clicking and vibration coming from the front wheels on both sides. It doesn't stop or change when I apply the brakes, and it doesn't change when I turn the wheel. I put it on my lift two weeks ago and wiggled the tire up and down and left and right, but I didn't have any bearing or ball joint play. Is this noise coming from my u-joints or is it something else? Is there a way to check if they're bad? I should also note that when coming to a stop, when the weight of the vehicle is pushed toward the front of the truck, the clicking is louder and the vibration is worse. Any ideas?
 
  #2  
Old 09-17-2010, 05:40 PM
aim4squirrels's Avatar
aim4squirrels
aim4squirrels is offline
Legend
Join Date: Jul 2007
Location: DFW, Texas
Posts: 7,843
Likes: 0
Received 12 Likes on 12 Posts
Default

if it's a 4x4, I don't know that you can check the front u joints. Grease leaking from the cap near the seat or a small gap in the cap is usually a sign.

the driveline u joints in the driveshaft can be checked by elevating the wheels and putting the truck in neutral. Grab the driveshaft and rotate by hand and look for play in the U joint.
 
  #3  
Old 09-17-2010, 06:03 PM
Fubba's Avatar
Fubba
Fubba is offline
Professional
Thread Starter
Join Date: Nov 2005
Posts: 185
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by aim4squirrels
if it's a 4x4, I don't know that you can check the front u joints. Grease leaking from the cap near the seat or a small gap in the cap is usually a sign.

the driveline u joints in the driveshaft can be checked by elevating the wheels and putting the truck in neutral. Grab the driveshaft and rotate by hand and look for play in the U joint.
It is a 4x4. So what do you recommend me do? Should I change them anyway? What else could be making that noise?
 
  #4  
Old 09-17-2010, 06:15 PM
aim4squirrels's Avatar
aim4squirrels
aim4squirrels is offline
Legend
Join Date: Jul 2007
Location: DFW, Texas
Posts: 7,843
Likes: 0
Received 12 Likes on 12 Posts
Default

Well, the reason I don't know if you can check them is that I have a 2wd and can't look under the truck to verify myself, LOL.

if you can see them, try to wiggle the body of the u joint. if it has play, they need replacing.
 
  #5  
Old 09-17-2010, 06:20 PM
dakota_raven's Avatar
dakota_raven
dakota_raven is offline
Record Breaker
Join Date: Jan 2009
Location: Texas
Posts: 1,627
Likes: 0
Received 0 Likes on 0 Posts
Default

Check the sway bar links!!
 
  #6  
Old 09-17-2010, 06:24 PM
Fubba's Avatar
Fubba
Fubba is offline
Professional
Thread Starter
Join Date: Nov 2005
Posts: 185
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by dakota_raven
Check the sway bar links!!
How so? Just by grabbing the sway bars and trying to move them?

I really appreciate the responses here guys. If I can get this front end squared away, it'll be great to drive again.
 
  #7  
Old 09-17-2010, 07:55 PM
HeyYou's Avatar
HeyYou
HeyYou is offline
Administrator
Dodge Forum Administrator
Join Date: Apr 2010
Location: Clayton MI
Posts: 80,640
Likes: 0
Received 3,166 Likes on 2,920 Posts
Default

Yep, visual inspection, and the 'shake' test. Should be able to get a few fingers on the front u-joints.
 
  #8  
Old 09-18-2010, 02:28 AM
Fubba's Avatar
Fubba
Fubba is offline
Professional
Thread Starter
Join Date: Nov 2005
Posts: 185
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks. I'll give it a try in the morning.
 
  #9  
Old 09-18-2010, 09:01 AM
dhvaughan's Avatar
dhvaughan
dhvaughan is offline
Hall Of Fame
Join Date: Jul 2006
Location: Gainesville, Ga.
Posts: 12,204
Likes: 0
Received 8 Likes on 8 Posts
Default

front u-joint is pretty easy to check. since the tire side is stationary and the axle is free to spin, you can grab ahold of the axle half and twist back and forth. if it moves any and/or makes a click or clack sound, its bad. replace with Precision brand super strength 377 greasable from napa. $29/ea, but you'll be impressed with their bulk.
 
  #10  
Old 09-18-2010, 05:57 PM
Fubba's Avatar
Fubba
Fubba is offline
Professional
Thread Starter
Join Date: Nov 2005
Posts: 185
Likes: 0
Received 0 Likes on 0 Posts
Default

U-joints are really bad. REALLY bad. There's a lot of movement and noise when I shake them around. Now I just gotta find a 1-11/16" socket somewhere...none around here. Thanks for the help guys.
 

Thread Tools
Search this Thread
Quick Reply: How do I know if my u-joints are bad?



All times are GMT -4. The time now is 05:29 PM.