C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

U joint question

Thread Tools
 
Search this Thread
 
Old Apr 11, 2017 | 08:15 PM
  #1  
keithhogan's Avatar
keithhogan
Thread Starter
Instructor
Conversation Starter
All Eyes On Me
Liked
 
Joined: Dec 2016
Posts: 152
Likes: 29
From: NC
Default U joint question

I am trying to find out if the U joints on my 95 came out of the factory with greasable or non-greasable u joints.

After balancing the wheels I still have an annoying vibration at 45 to 60 MPM under acceleration. The forum suggests I check out the ujoints. Mine are non-greasable. Just trying to see if these have been changed out already.

Thanks for the help
Reply
Old Apr 11, 2017 | 10:21 PM
  #2  
gerardvg's Avatar
gerardvg
Safety Car
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2009
Posts: 3,745
Likes: 275
From: Melbourne, Victoria, Australia
Default

Originally Posted by keithhogan
I am trying to find out if the U joints on my 95 came out of the factory with greasable or non-greasable u joints.

After balancing the wheels I still have an annoying vibration at 45 to 60 MPM under acceleration. The forum suggests I check out the ujoints. Mine are non-greasable. Just trying to see if these have been changed out already.

Thanks for the help
Hi

I tend to replace my half shaft universal joints every 4 years on average, I have tried both types.
The ones with a grease nipple tend to wear but not dry out of grease like the non grease-able type.

They usually start squeaking when dry and rusty inside, don't forget a wheel alignment may be needed if wheels are balanced and you still have vibration. Or tires are out of round ... all too common..

Jack the car up so both wheels are off the ground, then rotate a tire back and forth. Look for any play or noises.

Good Luck.
Reply
Old Apr 12, 2017 | 08:52 AM
  #3  
bac22's Avatar
bac22
Le Mans Master
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2000
Posts: 9,060
Likes: 214
From: Epping NH
Default

Vibration would lead me to believe wheel bearings more then u-joints. Also I assume you're tires have been check for balance?

Last edited by bac22; Apr 12, 2017 at 08:52 AM.
Reply
Old Apr 12, 2017 | 09:39 AM
  #4  
blue94's Avatar
blue94
Pro
20 Year Member
 
Joined: Aug 2004
Posts: 549
Likes: 13
From: Richmond VA
Default

Had the same issue, cracked rear u joint on driveshaft. It was a hairline crack but replacing it was the fix.
Reply
Old Apr 12, 2017 | 11:30 AM
  #5  
vader86's Avatar
vader86
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2001
Posts: 62,127
Likes: 1,727
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Default

Factory would be without zerk fittings.

Replace with Spicer forged joints.
Reply
Old Apr 12, 2017 | 08:11 PM
  #6  
keithhogan's Avatar
keithhogan
Thread Starter
Instructor
Conversation Starter
All Eyes On Me
Liked
 
Joined: Dec 2016
Posts: 152
Likes: 29
From: NC
Default

Thanks for the tips guys.
I plan to get this on a lift Friday and test as you suggested to see if the u joints make noise or have play in them.
If needed I will go with the Spicers as they seem to have good reviews and comments.
It will not hurt to check the alignment after all of this.
I have only had this car a few months so I don't have a lot of history. But my gut tells me that these are the original u joints.
Hope I can fix this with my first attempt. Of course the vibration does not occur at high speeds so I can just go fast I suppose.....
Reply

Get notified of new replies

To U joint question





All times are GMT -4. The time now is 08:55 PM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE