Driveshaft shaking
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New User
Joined: Mar 2008
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From: Fort Lauderdale
Driveshaft shaking
Hey,
Hope somebody can help me with my newest problem. A little history to let you know what's been done so far, new clutch and u joints. Since all was put back together the clutch works fine but I have a vibration in the shifter when I get above 45. The front slip yoke seal is bad, getting ready to replace it. Could this loose driveshaft be caused by that?
Hope somebody can help me with my newest problem. A little history to let you know what's been done so far, new clutch and u joints. Since all was put back together the clutch works fine but I have a vibration in the shifter when I get above 45. The front slip yoke seal is bad, getting ready to replace it. Could this loose driveshaft be caused by that?
Elder User
Joined: Mar 2005
Posts: 524
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From: Liberty, MO
At one point I seemed to have a similar problem but it was only under certain circumstances. Like light acceleration going up a grade at about 45. With as many miles as my truck had I attributed it to that little half shaft they put in the extended cab and long bed trucks just behind the tranny. Never solved it however.
Laughing Gas
Joined: Aug 2003
Posts: 1,175
Likes: 9
From: So. Cal.
Check to make sure that the U-joints on each end of the drive shaft are properly aligned with each other. I misaligned my slip yoke by one spline-tooth by accident once and it acted the same way you describe.
Post Fiend
Joined: Dec 2007
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From: carter lake ia.
hi guys,
did you check the carrier bearing? if you have a split driveline. did you pull the drive shaft apart? as in seperate the 2 shafts? did you mark the halfs? did you make sure
the u-joints moved free and are not tight. tight u-joints adds vibration! because they are too tight. and they won't take grease either for the simple reason they are bottomed out in the cups! a dent in the shaft will cause the same problem! all a slip yoke seal does is to keep the grease in it!
ford ranger
did you check the carrier bearing? if you have a split driveline. did you pull the drive shaft apart? as in seperate the 2 shafts? did you mark the halfs? did you make sure
the u-joints moved free and are not tight. tight u-joints adds vibration! because they are too tight. and they won't take grease either for the simple reason they are bottomed out in the cups! a dent in the shaft will cause the same problem! all a slip yoke seal does is to keep the grease in it!
ford ranger
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New User
Joined: Mar 2008
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From: Fort Lauderdale
Wow, thanks for all the help, just had new u joints installed, don't have a split shaft. You can feel play at the front of the shaft when you grab and shake it. Someone suggested it might be the mainshaft output bearing. Anybody know what the bearing is called behind the seal, these auto parts guys are no help. Appreciate any advice.
Cargo Master
Joined: Aug 2003
Posts: 3,263
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From: BC Canada
Originally Posted by bulkfever
Wow, thanks for all the help, just had new u joints installed, don't have a split shaft. You can feel play at the front of the shaft when you grab and shake it. Appreciate any advice.
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From: Fort Lauderdale
Originally Posted by FORD RANGER
hi bulk,
there is a bushing in the tailshaft of your tranny!
ford ranger
there is a bushing in the tailshaft of your tranny!
ford ranger
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Post Fiend
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From: carter lake ia.
sure they do. there's a part# for everything in that tranny!..... ok! what transmission do you have and what type of car or truck is it in? here's what i got so far. you put a clutch and u-joints and now you have a vibration correct? maybe i missed something here! bring me back up to the speed limit will you!
ford ranger
ford ranger
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Joined: Oct 2005
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From: Kiev, Ukraine
Well, you are to inspect DS for play in rear end of tranny. Usually vibrates on neutrall, no vibration under the load.
Vibrates usually here:
And tranny oil leaks there too....
This vibration slowly kills bearings in tranny and when they are bad tranny is noisy. This problem unsolved may cause teth damage.
I'm not sure you will see it well inside, but one snapshot...
But it is not all, check for rear pinion play.
Also check small centering bearing pressed in flywheel ore CS.
As I've understood you have new UJs and no reason to inspect them....
I dont know why, but manual tranny has more vibrations when DS is disballanced.
My DS was balanced well, but had vibrations and zzzz sound at 80-90 MPH. Yeah it is really fast, but I did not want to have virations and made DS of 2 pices:
P/S It is '89 aero 3.0, but Ranger has similar power train.
Vibrates usually here:
And tranny oil leaks there too....
This vibration slowly kills bearings in tranny and when they are bad tranny is noisy. This problem unsolved may cause teth damage.
I'm not sure you will see it well inside, but one snapshot...
But it is not all, check for rear pinion play.
Also check small centering bearing pressed in flywheel ore CS.
As I've understood you have new UJs and no reason to inspect them....
I dont know why, but manual tranny has more vibrations when DS is disballanced.
My DS was balanced well, but had vibrations and zzzz sound at 80-90 MPH. Yeah it is really fast, but I did not want to have virations and made DS of 2 pices:
P/S It is '89 aero 3.0, but Ranger has similar power train.
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New User
Joined: Mar 2008
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From: Fort Lauderdale
OK, heres my story, not a mechanic so bear with my explanation. The truck is a 1994 Ranger 4 cyl 2 wheel drive. My u joint started clunking, then fell out, my brother is a muffler man, his friend is a mechanic and is trying to fix this at cheap rates to help me out. He also replaced the yoke on the driveshaft, what I went thru to find that was a nightmare itself. He put in a new clutch and throwout bearing also. It took me so long to find the front seal, he put the old one back in so I could get to work. He's basicaly an engine and brake guy, so he's flying as blind as me on this one, guy at Broward drivetrain thinks it needs to be balanced, still doesn't explain to me the looseness in the front of the driveshaft. I realy appreciate your help here.
Originally Posted by FORD RANGER
sure they do. there's a part# for everything in that tranny!..... ok! what transmission do you have and what type of car or truck is it in? here's what i got so far. you put a clutch and u-joints and now you have a vibration correct? maybe i missed something here! bring me back up to the speed limit will you!
ford ranger
ford ranger
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New User
Joined: Mar 2008
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From: Fort Lauderdale
Originally Posted by Pablo-UA
Well, you are to inspect DS for play in rear end of tranny. Usually vibrates on neutrall, no vibration under the load.
Vibrates usually here:
And tranny oil leaks there too....
This vibration slowly kills bearings in tranny and when they are bad tranny is noisy. This problem unsolved may cause teth damage.
I'm not sure you will see it well inside, but one snapshot...
But it is not all, check for rear pinion play.
Also check small centering bearing pressed in flywheel ore CS.
As I've understood you have new UJs and no reason to inspect them....
I dont know why, but manual tranny has more vibrations when DS is disballanced.
My DS was balanced well, but had vibrations and zzzz sound at 80-90 MPH. Yeah it is really fast, but I did not want to have virations and made DS of 2 pices:
P/S It is '89 aero 3.0, but Ranger has similar power train.
Vibrates usually here:
And tranny oil leaks there too....
This vibration slowly kills bearings in tranny and when they are bad tranny is noisy. This problem unsolved may cause teth damage.
I'm not sure you will see it well inside, but one snapshot...
But it is not all, check for rear pinion play.
Also check small centering bearing pressed in flywheel ore CS.
As I've understood you have new UJs and no reason to inspect them....
I dont know why, but manual tranny has more vibrations when DS is disballanced.
My DS was balanced well, but had vibrations and zzzz sound at 80-90 MPH. Yeah it is really fast, but I did not want to have virations and made DS of 2 pices:
P/S It is '89 aero 3.0, but Ranger has similar power train.
Post Fiend
Joined: Dec 2007
Posts: 19,460
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From: carter lake ia.
wait a minute! you said the front of the driveshaft is loose in the front of the shaft?
where it slips in to the tranny? you shouldn't be able to move the front at all as well as rear of the shaft at the pinion. there is more stress on the front of the driveline than there is at the rear. do you have a tranny leak in that area? like the rear seal?
i think you just found your vibration! if you can move it , it will cause a vibration!
ford ranger
where it slips in to the tranny? you shouldn't be able to move the front at all as well as rear of the shaft at the pinion. there is more stress on the front of the driveline than there is at the rear. do you have a tranny leak in that area? like the rear seal?
i think you just found your vibration! if you can move it , it will cause a vibration!
ford ranger
Post Fiend
Joined: Oct 2005
Posts: 5,242
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From: Kiev, Ukraine
yes! I had tranny leak there! And this play there killed my tranny, becouse internal tranny shafts were not lined in.
Now about dual DS. one pice is not so heavy as stock DS and it is much easier to balance a pice of DS to zero. It reduses load to rear tranny bearing and avoid vibration at highter speeds. Rear pice made of aluminium is easier to balance too. U-joine life is much longer. It is funny, but my UJs were replaced becouse of rust inside.
Aero was designed for 80MPH max speed, but with overbore 3.0 (now it is 3.4... may be... I'm not sure, I dont remember bore now...) and 5 st OD tranny can easily run faster 100 MPH.... especially downhill :-). So I made this DS.
Now about dual DS. one pice is not so heavy as stock DS and it is much easier to balance a pice of DS to zero. It reduses load to rear tranny bearing and avoid vibration at highter speeds. Rear pice made of aluminium is easier to balance too. U-joine life is much longer. It is funny, but my UJs were replaced becouse of rust inside.
Aero was designed for 80MPH max speed, but with overbore 3.0 (now it is 3.4... may be... I'm not sure, I dont remember bore now...) and 5 st OD tranny can easily run faster 100 MPH.... especially downhill :-). So I made this DS.
Senior User
Joined: Nov 2004
Posts: 302
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Back the bus up!!! I see 2 questionable problems right off. 1- the joint fell out? Is the shaft bent from hitting the ground? 2- New yoke was put on? By who? I have never seen a machine shop that does not balance the shaft after they install a new yoke. Greg