• Steel Soldiers now has a few new forums, read more about it at: New Munitions Forums!

  • Microsoft MSN, Live, Hotmail, Outlook email users may not be receiving emails. We are working to resolve this issue. Please add support@steelsoldiers.com to your trusted contacts.

M35a2 Bad vibration

acesneights1

Member
1,449
23
20
Location
CT
Well my Deuce has a bad vibration. It starts around 28 mph and peaks about 35 mph and is much better 40-45. It feels like a bad bearing somewhere. I was thinking ring and pinion on one of the diffs but then driving it today I noticed something. When I feel the vibration, I don't feel it in the shifter of the 5 spd main transmission but I feel it perfectly in the shifter of the transfer case. Engine rpms do not affect it. In fact I got it going around 35 down hill and slipped the Tcase into neutral and it was the same and I pulled the engine stop as well and still had the vibration. I have not pulled the drain plug on the T case yet. It's not undrivable, but very noticable. When you old the t case shift it vibrates ALOT. Anyone have this issue ? This could be difficult to nail down as it is not easy to put a Deuce on jack stands and run it up to 35 mph to try and find it. in fact that would probably be suicide.
If I don't find any metal in the t case drain I was thinking about pulling the front driveshaft.
 

212sparky

Well-known member
1,822
38
48
Location
Monroe/ Ohio
You could pull the front and rear drive shaft and run the gear train up through the speeds and see if you have it. Then add the rear drive line and drop the jack shaft between the rear boogie, then add in the rear axle then the front drive line.

Is it a tire imbalance vibration?
 

acesneights1

Member
1,449
23
20
Location
CT
You could pull the front and rear drive shaft and run the gear train up through the speeds and see if you have it. Then add the rear drive line and drop the jack shaft between the rear boogie, then add in the rear axle then the front drive line.

Is it a tire imbalance vibration?
I have a cupped front tire and thought maybe. A friend also suggested possible wheel bearing since I have a bad seal in the R/R axle but it feels exactly like a bad ring nd pinion except the shifter for the T case is vibrating like mad and no vibration from the Trans.
I like your idea. I did not think of that. Pull both shafts. It is easy enough to do. Thanks.
 

acesneights1

Member
1,449
23
20
Location
CT
There can be so many things , but I would check tires and u-joints first tired can smooth out at speed
U joints are all good. I checked those first at the show and we jacked up two wheels so I could spin the driveshafts to see if they were wobbling.
 

Jeepsinker

Well-known member
5,399
457
83
Location
Dry Creek, Louisiana
Pull the rear driveshaft, leave the front shaft and jackshaft in. Run it up that way and if it still vibrates it is either in the transfer case or the jackshaft. If you have a sprag case you will need to pull the front shaft as well.
 

phil2968

Active member
2,591
18
38
Location
Lakeland, Florida
uploadfromtaptalk1410400248552.jpguploadfromtaptalk1410400270883.jpg
This was my vibration. Front spindle bushing was gone. It was not there all the time but came and went. My good friend Steve6x6x6 put in new bushings and polished my axles.
 
Last edited:

RAYZER

Well-known member
3,380
59
48
Location
sanford/florida
I'm running 9.20's
What is the jack shaft ?
I have an air shift T Case.
The jack shaft is the short drive shaft between the transfer case and transmission.
Check all drive shaft flange bolts (especially the jack shaft) for proper tightness, i have seen these flange bolts loosen up to where I could turn them by hand, loose flange bolts will cause vibration.
 
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website like our supporting vendors. Their ads help keep Steel Soldiers going. Please consider disabling your ad blockers for the site. Thanks!

I've Disabled AdBlock
No Thanks