Drive line vibration - Moparts Forums

Register Log In Moparts Forums Moparts Question and Answer Drive line vibration

Print Thread

Drive line vibration #114685 09/03/08 03:50 PM 09/03/08 03:50 PM
Joined: Mar 2008 Posts: 724 PA USA F flatiron OP super stock
flatiron OP super stock F Joined: Mar 2008 Posts: 724 PA USA	I've been having a on going problem with my coronet. If I run it up to 5K and lift my foot I get a heck of a vibration right next to me at about the end of the tranny my slip yoke is sticking off of the tailshaft about 2.5 inches. Put another driveshaft in that measured the sme as my old one and it still does it

Re: Drive line vibration [Re: flatiron] #114686 09/03/08 04:00 PM 09/03/08 04:00 PM
Joined: Dec 2007 Posts: 10,542 BROOK PARK, OH WILD BILL Senior Member of the Junior Dragster Club
WILD BILL Senior Member of the Junior Dragster Club Joined: Dec 2007 Posts: 10,542 BROOK PARK, OH	2 1/2 inches seems pretty far. Are you sure you have the right shaft for your combination? More info on your combination would help too

Re: Drive line vibration [Re: flatiron] #114687 09/03/08 04:12 PM 09/03/08 04:12 PM
Joined: Jan 2003 Posts: 2,567 Appalachia RedRam master
RedRam master Joined: Jan 2003 Posts: 2,567 Appalachia	IMO, If it vibrates when you lift/decelerate, it is pinion angle. The pinion is too far down. Do the front segments of your leaf springs have the straps around them or are they clamped? Might want to make sure they are strapped/clamped. Then work on pinion angle.

Re: Drive line vibration [Re: RedRam] #114688 09/03/08 04:31 PM 09/03/08 04:31 PM
Joined: Mar 2008 Posts: 724 PA USA F flatiron OP super stock
flatiron OP super stock F Joined: Mar 2008 Posts: 724 PA USA	I'm not sure if I have the right shaft. The previous owner was the type that had no right owning a old car and Ijust keep finding one thing after the other. As for pinion angle I do have s/s springs on and they are clamped but I have no shims in place.

Re: Drive line vibration [Re: RedRam] #114689 09/03/08 05:38 PM 09/03/08 05:38 PM
A Anonymous Unregistered
Anonymous Unregistered A	Quote: IMO, If it vibrates when you lift/decelerate, it is pinion angle. The pinion is too far down. Do the front segments of your leaf springs have the straps around them or are they clamped? Might want to make sure they are strapped/clamped. Then work on pinion angle. hmmmm, I have a vibration too. more of a HUMMMM HUMMMM HUMMMM while I cruise that kinda goes away when I accelerate. Same thing only different (pinion too far up maybe?)

Re: Drive line vibration #114690 09/03/08 05:43 PM 09/03/08 05:43 PM
Joined: Feb 2003 Posts: 1,739 Grand Forks, ND Hemi_Ram top fuel
Hemi_Ram top fuel Joined: Feb 2003 Posts: 1,739 Grand Forks, ND	Had the same problem a few years back with a 71 Demon; wrong length driveshaft as the yoke was sticking out too far. Measured and made up a new shaft with the correct dimensions and the vibration diasappeared. www.picturetrail.com/hemi_ram

Re: Drive line vibration [Re: Hemi_Ram] #114691 09/03/08 05:56 PM 09/03/08 05:56 PM
Joined: Mar 2008 Posts: 724 PA USA F flatiron OP super stock
flatiron OP super stock F Joined: Mar 2008 Posts: 724 PA USA	Yeah I think that's the route I'm gonna go. It just seems like the slip yoke is sticking out way to far.

Re: Drive line vibration [Re: flatiron] #114692 09/03/08 07:11 PM 09/03/08 07:11 PM
Joined: Jan 2003 Posts: 2,567 Appalachia RedRam master
RedRam master Joined: Jan 2003 Posts: 2,567 Appalachia	quick way to check is put the rear axle up on jackstands, unbolt the Dshaft from the yoke, shove it all the way in the trans. If Ujoint is more than an inch away from seating in the pinion yoke, it is too short.

Re: Drive line vibration [Re: Hemi_Ram] #114693 09/03/08 08:34 PM 09/03/08 08:34 PM
Joined: Feb 2004 Posts: 1,167 ERIE PA home of the RENCH MOB mike_vango super stock
mike_vango super stock Joined: Feb 2004 Posts: 1,167 ERIE PA home of the RENCH MOB	Quote: Had the same problem a few years back with a 71 Demon; wrong length driveshaft as the yoke was sticking out too far. Measured and made up a new shaft with the correct dimensions and the vibration diasappeared. i had a vibration since i finished my car. my driveshaft is being lenghtened right now and will be done on friday. i've checked everything and this is my final attempt. hope this does it.

Re: Drive line vibration [Re: mike_vango] #114694 09/08/08 07:40 AM 09/08/08 07:40 AM
A Anonymous Unregistered
Anonymous Unregistered A	mine doesnt stick out more than an 1 1/2 from the start of the yoke to the tranny seal....

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1