Help with rear driveshaft/diff

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Ccjeepma

New Member
Joined
Mar 24, 2023
Messages
1
Reaction score
0
Ive got some serious vibrations coming from mid to rear of my kj. When I inspected the driveshaft to check for faulty ujoints I could NOT get any play in either joint but at speeds of 30+ i feel some serious vibrations and and occasionally a clunking. Also if i come to almost a complete stop but have to then apply gas before coming to a complete stop it feels like something comes unattached underneath and then reconnects or like a yoyo/train. Any ideas?
 

tommudd

Moderator
Staff member
Moderator
Joined
Jul 14, 2005
Messages
22,456
Reaction score
3,642
Location
Southeastern Ohio
How are the U Joints first thing ?
Looks alone doesnot tell how they are
Take it for a ride 20/30 minutes , pull back and stop and put hand near each u joint , if hot it is bad
Next check backlash in rear diff
Then
 

ngkdum

New Member
Joined
Jul 29, 2018
Messages
1
Reaction score
3
Location
CA
I had a very similar case and the clunking on takeoff would be so bad that I thought the rear end was falling off. Turned out to be the upper control arm. The center bushing on the arm was almost completely disintegrated. I could actually see the rear end rotate when I rocked the vehicle back and forth. Hope this helps.
 

KJowner

Full Access Member
Joined
Oct 20, 2022
Messages
847
Reaction score
505
Location
Uk
Also check the tyres are still round, I've had horrible vibration from a warped tyre.
 

Latest posts

Members online

Top