drive train vibration
Thread Starter
|
Drifting
Joined: Aug 2018
Posts: 29
Likes: 0
From: North Augusta, SC
drive train vibration
Recently acquired a 2002 Discovery 2. I noticed today that the drive train has a vibration. I got under it and the front drive shaft has a small amount of play. could this be the problem?
If it has any play = U-Joints are about to go out with a big BANG. Either get the 200.00 front driveshaft from Lucky8 or the 125.00-150.00 units off of Ebay with zerk fittings on all 3 U-Joints.
If you ignore a failing driveshaft you could very easily make a massive hole in your transmission killing it for sure along with your exhaust, cats, a huge hole in the floor, and I’ve even seen some transfer cases blown free of the transmission. Just depends on how fast your driving when it lets go especially if you still have the OEM frame support bar installed directly under it which just means if it breaks it bounces off of that vs dropping to the ground.
If you ignore a failing driveshaft you could very easily make a massive hole in your transmission killing it for sure along with your exhaust, cats, a huge hole in the floor, and I’ve even seen some transfer cases blown free of the transmission. Just depends on how fast your driving when it lets go especially if you still have the OEM frame support bar installed directly under it which just means if it breaks it bounces off of that vs dropping to the ground.
Last edited by Best4x4; Oct 25, 2018 at 07:36 PM.
https://www.lucky8llc.com/collection...t-driveshaft-6
Feel free to give Steve at Lucky8 a call or email. He is great to work with on parts.
Steve@LK8Parts.com
716 898 8153 Ext 101
Feel free to give Steve at Lucky8 a call or email. He is great to work with on parts.
Steve@LK8Parts.com
716 898 8153 Ext 101
Camel Trophy
Joined: Oct 2016
Posts: 4,863
Likes: 1,407
From: Michigan
Drain train vibrations are a process of elimination. Very tough at time to diagnose. If you suspect an item is worn or out of balance, replacement or repair is your only option. Sure, the first thing you fix may not cure the problem...but it is part of the process of elimination. If you are feeling movement in the joints of the drive shaft, just replace.
If the vehicle has been sitting for a long time, even radial tires will get flat spots. And if the tires are old, another reason for the to be replaced.
Changing all draintrain fluids would be another good place to investigate. Looking for any unusual materials in drained fluids.
Wheel bearing hubs, also could be the issue.
Brian.
If the vehicle has been sitting for a long time, even radial tires will get flat spots. And if the tires are old, another reason for the to be replaced.
Changing all draintrain fluids would be another good place to investigate. Looking for any unusual materials in drained fluids.
Wheel bearing hubs, also could be the issue.
Brian.
Last edited by The Deputy; Oct 26, 2018 at 02:59 AM.
Thread Starter
|
Drifting
Joined: Aug 2018
Posts: 29
Likes: 0
From: North Augusta, SC
OK, I also detect some lateral movement in the dif and the TC.at the DS connections No oil leakage. What should I suspect if anything?
Last edited by Pastor Bob; Oct 26, 2018 at 08:23 PM.
Camel Trophy
Joined: Oct 2016
Posts: 4,863
Likes: 1,407
From: Michigan
Some movement is normal, there is a preset amount of backlash in the gear set (ring and pinion) and the gears within the transfer case. It's kind of one of those "feel" things, you know the difference between normal and Abby-normal when you feel it. I'd say, up to a 1/2 inch movement back and forth would be acceptable. Also, when this amount of backlash becomes greater, you usually get a high pitch whining noise...when you let off the gas pedal at speed.
Brian.
Brian.