1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

at my wits end with this front end

Thread Tools
 
Search this Thread
 
  #11  
Old 06-28-2010, 06:25 PM
Budgreen's Avatar
Diesel Bomber
Thread Starter
Join Date: Dec 2007
Location: Bedford OH
Posts: 1,352
Received 50 Likes on 47 Posts
Default

yep yep and yep. all.. and i mean all u-joints are 1-4mos old carrier bearing too, just regeared the rear.

its like a bounce/wobble im gonna rotate tires and see if that helps. im just sick of tearing into it.. pretty sure i can rebuild the whole powertrain with my eyes closed.

replaced everything i can possibly think of, followed proper procedures and it's like being in a blender at 75mph ok, not that bad but its been a real annoyance for the past year, and now that i replaced everything its still there....

anyone wanna buy it? i need something else
 
  #12  
Old 06-28-2010, 06:42 PM
jasonfriedlin's Avatar
Diesel Bomber
Join Date: Apr 2007
Location: Gloucester, Va
Posts: 2,070
Received 96 Likes on 74 Posts
Default

How bad is it? Every 1st gen Ive ever ridden in shakes or vibrates to a point and they all ride rough as hell. Is it like death wobble or just a little vibration?
 
  #13  
Old 06-28-2010, 06:48 PM
Dieselwrencher's Avatar
Diesel Bombers Sponsor
Join Date: Dec 2008
Location: Mitchellville, Ia
Posts: 170
Received 9 Likes on 9 Posts
Default

Are there certain speeds where the vibration gets worse or fades away a little?
 
  #14  
Old 06-28-2010, 07:02 PM
tiremann9669's Avatar
Diesel Bomber
Join Date: Mar 2010
Location: Dansville NY
Posts: 4,233
Received 434 Likes on 356 Posts
Default

What do you have on there for tires ?
 
  #15  
Old 06-28-2010, 08:08 PM
Budgreen's Avatar
Diesel Bomber
Thread Starter
Join Date: Dec 2007
Location: Bedford OH
Posts: 1,352
Received 50 Likes on 47 Posts
Default

235 85 16's still have decent tread, forget the brand offhand.

its a constant vibration, not death wobble but it becomes more pronounced with speed, vibrates everything at 65-75 then smoothes out past 80mph

at lower speeds 35-45 its there sometimes, and sometimes not, depends on it I hit bumps or take hard corners, comes and goes.
 
  #16  
Old 06-28-2010, 08:24 PM
DirtyDozen's Avatar
Diesel Fan
Join Date: Jul 2009
Location: Prince George, B.C.
Posts: 75
Received 7 Likes on 7 Posts
Default

I'm sure none of these are the right one... but a couple more ideas anyways...

The front diff/driveline will spin even in 2wd. with the hubs unlocked, just thru the drag and friction and what not through the grease in the hubs, so make sure both of the u-joints out at the steering knuckles are still free and easy moving

Even when the carrier bearing on the rear driveline is still good, you can get a pretty mean shake out of it if the rubber isolator around it is getting weak/soft(or if anyone has ever drug your transmission crossmember over a stump or rock and knocked the engine/tranny out of alignment with the rear diff)

Are the brake rotors still straight?

Did you have it aligned after all of the front end work was completed? (not sure if the list of recent work was in any kind of order? sorry)
 
  #17  
Old 06-28-2010, 09:15 PM
Budgreen's Avatar
Diesel Bomber
Thread Starter
Join Date: Dec 2007
Location: Bedford OH
Posts: 1,352
Received 50 Likes on 47 Posts
Default

Originally Posted by DirtyDozen
I'm sure none of these are the right one... but a couple more ideas anyways...

The front diff/driveline will spin even in 2wd. with the hubs unlocked, just thru the drag and friction and what not through the grease in the hubs, so make sure both of the u-joints out at the steering knuckles are still free and easy moving

check, only been in 4x4 a few times since I put them in, had them out this weekend to do kingpins still look and move new

Even when the carrier bearing on the rear driveline is still good, you can get a pretty mean shake out of it if the rubber isolator around it is getting weak/soft(or if anyone has ever drug your transmission crossmember over a stump or rock and knocked the engine/tranny out of alignment with the rear diff)

carrier bearing was replaced a few months back, a week or so before my rear gears grenaded. mine came with the isolator

Are the brake rotors still straight? about a year old, no visible warping and very minor wear so far, brakes are smooth

Did you have it aligned after all of the front end work was completed? (not sure if the list of recent work was in any kind of order? sorry)
not yet, i was aligned somewhere in the middle of it all, now looking at it today from a distance I can tell its out a tiny bit

guess I will have to have that set and see if it helps.. but I have a feeling it won't solve my problem.. man I hope the shop has a socket big enough for the lugnuts so many are dumbfunded when I say 1"1/8
 
  #18  
Old 06-29-2010, 01:56 AM
Roughneck's Avatar
Diesel Fan
Join Date: Sep 2009
Location: Northeast Oklahoma
Posts: 12
Received 0 Likes on 0 Posts
Default

are the ball joints good i know mine are bad and get the wobble bounce and shake at 65 to 75 smooths out at 80 but im in a two wheel drive dually read thru the post didnt see anything about ball that i recall just thought i would throw it out there
 
  #19  
Old 06-29-2010, 08:41 AM
Budgreen's Avatar
Diesel Bomber
Thread Starter
Join Date: Dec 2007
Location: Bedford OH
Posts: 1,352
Received 50 Likes on 47 Posts
Default

what's a ball joint?

kingpins baby
 
  #20  
Old 06-29-2010, 09:06 AM
NadirPoint's Avatar
Diesel Bomber
Join Date: Aug 2009
Location: CO
Posts: 2,257
Received 186 Likes on 159 Posts
Default

Spring mounts/bushings.
 


Quick Reply: at my wits end with this front end



All times are GMT -5. The time now is 02:31 PM.