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12-11-2005, 04:01 AM
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#1 |
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Got Horsepower?
Join Date: Sep 2003
Location: IDAHO
Posts: 406
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driveline vibration
im getting a vibration from my driveline. it is smooth from 0-45mph then it vibrates at 45 dies off torward 50 and then has a slight vibration from 50-almost 70 and then vibrates 70 and up. whats wrong and how do i fix it.
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2001 Dodge 2500 Cummins, 4 inch lift, 35" Toyo MT's on Ultra wheels, P-Pump Conversion, AFE intake, Fass, 5 inch exhaust, Pyro,Boost,and Fuel pressure guages, and a whole bunch of other stuff "The Money Pit" SOLD-71 Chevy C10 long bed- 2/4 drop-- 350,th400, Edelbrock performer RPM intake,Edelbrock 600 CFM carb,Crower 240 cam,port and polish,Dynomax headers,HEI ignition,dual 2.5 inch exhaust with Flowmaster 50 series mufflers |
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12-11-2005, 06:42 AM
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#2 |
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Designated A-hole!
Join Date: Mar 2003
Location: South Mississippi
Posts: 36,448
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Re: driveline vibration
Where does it feel like it's vibrating? Could be the carrier bearing where your driveshaft goes thru the crossmember going bad. Could be a tire.
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"If it ain't broke, fix it 'til it is!" Being stupid ain't illegal.  We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck" |
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12-11-2005, 10:05 AM
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#3 |
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Senior Member
Join Date: Jun 2001
Location: Shelbyville, KY
Posts: 3,261
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Re: driveline vibration
Vibrations can be tough to find. Couple of tricks to help. Try putting the truck in neutral and see if the vibration continues. Then check the drive shaft universal joints --sometimes you can twist and feel some play and sometimes not. The carrier bearing is another bugger but so to is it's mounting placement. Finally putting the truck up on a lift then jacking the rear axle up and running it will help as you can usually pick off axle, pinion, driveshaft, etc. This all asumes that your wheels are true, your tires are true and they are well balanced as well as your driveshafts. Hope this helps! Huck
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12-11-2005, 10:25 AM
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#4 |
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Senior Member
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,238
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Re: driveline vibration
i work in an tire shop it sounds to me like your tires or out of balance
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David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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12-11-2005, 10:27 AM
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#5 |
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Registered User
Join Date: Jan 2001
Location: Killingworth, CT. USA
Posts: 3,378
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Re: driveline vibration
Another thought comes to mind is to be sure the two piece driveshafts are "clocked" correctly at the slip yoke.
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1971 C10 swb stepside 350/700R4/3.73posi (retired as of 4/22/03) 1998 S10 short bed 2002 S10 Blazer 1942 Oldsmobile 1958 Massey Harris Pony 1951 Wife Killingworth, Connecticut May those who love us, love us, any of those who do not love us, may God turn their hearts. And if God is unable to turn their hearts, may he turn their ankles so we may know them by their limping. A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist. |
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12-11-2005, 11:59 AM
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#6 |
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Registered User
Join Date: Nov 2005
Location: Park Rapids, MN
Posts: 288
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Re: driveline vibration
If you want to rule out your tires and wheels you need to take it to a shop that has a "road force balancer" this machine puts a wheel down on the tire and applies road force while it's balanced. The computer can pick out variations in the wheels as well as bad tires. It can also tell them where to move the tire on the rim to get them back into spec. Slight variations can cause vibrations that regular balancing can't solve. The only problem is that the machine is expensive as hell, and the shop will probably charge you diagnostic time to work on your tires. Works like a champ though. I think the carrier bearing is another thing to look at if the u joints are good.
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1969 K20 not running, complete but rusty with wrecker boom and push bumper 1969 GMC C20 un-molested rust free original paint "a 4 eyed girl named 'Tina" 1971 Chev K20 4X4 Box Delete Commercial Truck Flatbed "Choose a job you love, and you will never have to work a day in your life." Confucius |
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12-11-2005, 12:29 PM
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#7 |
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Just need a couple more parts.
Join Date: Jan 2005
Location: Calgary, Alberta, Canada
Posts: 470
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Re: driveline vibration
My C/10 has a vibration 55-60 and 75-80.
Can't remember exactly what my mechanic said was wrong with the drive line there but he told me how to fix it. 2 options: 1. Don't drive those speeds and if you do 2. Turn up the stereo. It is a very minor vibration so hours of trying to find it will just cost too much and drive you crazy. Minor enough that a couple of weeks ago I was under my truck and found a lug nut that was just sitting on the frame. That lug nut had sat there since approx. 1998 and about 7000 miles.
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--------------------------------------------------- 1947 Studebaker M5 project to match the camping trailer. 1950 Chev 4x4 Pickup 1958 Shasta Airflyte Travel trailer (fresh restoration) 1971 C/10 Pickup(Frame off Restoration) 1972 K5 Blazer CST (Daily Driver & My Company Truck) 1976 Honda CB750 Bobber 1988 Jaguar XJ12 |
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12-11-2005, 01:25 PM
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#8 |
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Dork For Days
Join Date: Aug 2005
Location: Dallas
Posts: 407
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Re: driveline vibration
In my experience, whenever a vibration could not be traced after all the normal checks were made, it's aways been a driveshaft problem. Good luck!
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1972 C20, 402/700R4 - My first classic truck, bought in September 2005. 85% transformed from "Farm" to "Cool" status!  1970 Dodge Challenger 440, 4sp (my other toy) 12.67 @ 117 MPH, with a pathetic 2.022 60' 2007 Dodge Charger SRT-8 2008 Cadillac CTS All-American garage, baby! |
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12-11-2005, 04:08 PM
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#9 |
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Got Horsepower?
Join Date: Sep 2003
Location: IDAHO
Posts: 406
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Re: driveline vibration
what do i look at on the carrier bearing
__________________
2001 Dodge 2500 Cummins, 4 inch lift, 35" Toyo MT's on Ultra wheels, P-Pump Conversion, AFE intake, Fass, 5 inch exhaust, Pyro,Boost,and Fuel pressure guages, and a whole bunch of other stuff "The Money Pit" SOLD-71 Chevy C10 long bed- 2/4 drop-- 350,th400, Edelbrock performer RPM intake,Edelbrock 600 CFM carb,Crower 240 cam,port and polish,Dynomax headers,HEI ignition,dual 2.5 inch exhaust with Flowmaster 50 series mufflers |
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12-11-2005, 06:10 PM
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#10 |
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Better late than never
 
Join Date: Dec 2001
Location: Columbus, IN
Posts: 324
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Re: driveline vibration
I have the same issue and balancing/rotating the wheels did not solve it. Since the driveshaft is one piece I suspect the u-joints, although they are not very old.
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1970 C/10 SWB Stepside |
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12-12-2005, 11:10 PM
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#11 |
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Got Horsepower?
Join Date: Sep 2003
Location: IDAHO
Posts: 406
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Re: driveline vibration
i blew up the rear end last summer and the problem seemed like it got worse after that is it possible that it messed up the u-joints when it went out
__________________
2001 Dodge 2500 Cummins, 4 inch lift, 35" Toyo MT's on Ultra wheels, P-Pump Conversion, AFE intake, Fass, 5 inch exhaust, Pyro,Boost,and Fuel pressure guages, and a whole bunch of other stuff "The Money Pit" SOLD-71 Chevy C10 long bed- 2/4 drop-- 350,th400, Edelbrock performer RPM intake,Edelbrock 600 CFM carb,Crower 240 cam,port and polish,Dynomax headers,HEI ignition,dual 2.5 inch exhaust with Flowmaster 50 series mufflers |
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