vibration update on the cuda #2 - Moparts Forums

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Re: vibration update on the cuda #126984 10/03/08 08:17 AM 10/03/08 08:17 AM
Joined: Aug 2003 Posts: 2,617 Stratford nj cudadan OP master
cudadan OP master Joined: Aug 2003 Posts: 2,617 Stratford nj	LOL i'll be hoping for good ones

Re: vibration update on the cuda [Re: cudadan] #126985 10/06/08 04:42 PM 10/06/08 04:42 PM
Joined: Aug 2003 Posts: 2,617 Stratford nj cudadan OP master
cudadan OP master Joined: Aug 2003 Posts: 2,617 Stratford nj	well i took the D/S out and put in a slip yoke, put a block of wood behind it, and ran it through the gears and no vibes at all, smooth as glass. so now its back to the D/S back. now since i changed everything there is where do i start? do i start changing everything all over again? i am gonna look at the pearches to make sure there are no cracks. i do have anew tranny mount that im gonna put it just for the hell of it too

Re: vibration update on the cuda [Re: cudadan] #126986 10/06/08 05:43 PM 10/06/08 05:43 PM
Joined: Jan 2003 Posts: 8,100 Tulsa OK Bad340fish master
Bad340fish master Joined: Jan 2003 Posts: 8,100 Tulsa OK	I would take the shaft into a driveshaft shop and have them check it out completly, then I would take it to another one and get a 2nd opinion. 68 Barracuda Formula S 340

Post deleted by Defbob [Re: Bad340fish] #126987 10/06/08 05:53 PM 10/06/08 05:53 PM
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Anonymous Unregistered A

Re: vibration update on the cuda #126988 10/06/08 06:17 PM 10/06/08 06:17 PM
Joined: Aug 2003 Posts: 2,617 Stratford nj cudadan OP master
cudadan OP master Joined: Aug 2003 Posts: 2,617 Stratford nj	Quote: Dan Tony Gambardella did my shafts and are fine whats he charge over there, i've gotten ptices from everyone and the prices are all over the place lol

Re: vibration update on the cuda [Re: cudadan] #126989 10/06/08 06:55 PM 10/06/08 06:55 PM
Joined: Aug 2003 Posts: 11,179 Atco NJ DJVCuda I Live Here
DJVCuda I Live Here Joined: Aug 2003 Posts: 11,179 Atco NJ	well you can narrow it down to the drive shaft, rear or springs. you said you never touched the springs....right?

Re: vibration update on the cuda [Re: DJVCuda] #126990 10/06/08 07:00 PM 10/06/08 07:00 PM
Joined: Aug 2003 Posts: 2,617 Stratford nj cudadan OP master
cudadan OP master Joined: Aug 2003 Posts: 2,617 Stratford nj	Quote: well you can narrow it down to the drive shaft, rear or springs. you said you never touched the springs....right? yeah never touched'em, i put the pinion angle back down to 5.7 down cause thats where its always been. took it out for a ride and i still feel the vibes, even with a new tranny mount too. i'd go with super stock springs but i don't want my car to look likes it ready to go off road cause how high they sit lol, im gonna sand blast my other rear housing and put that in when i get a chance, maybe it could be bent or something.

Re: vibration update on the cuda [Re: cudadan] #126991 10/07/08 12:49 AM 10/07/08 12:49 AM
Joined: Jan 2003 Posts: 19,597 Las Vegas Al_Alguire I Live Here
Al_Alguire I Live Here Joined: Jan 2003 Posts: 19,597 Las Vegas	I would just junk the shaft you have and buy a new one from a reputable builder...But what do I know "I am not ashamed to confess I am ignorant of what I do not know." "It's never wrong to do the right thing"

Re: vibration update on the cuda [Re: Al_Alguire] #126992 10/07/08 06:49 AM 10/07/08 06:49 AM
Joined: Aug 2003 Posts: 2,617 Stratford nj cudadan OP master
cudadan OP master Joined: Aug 2003 Posts: 2,617 Stratford nj	one thing i did notice when i put the drive shaft back in there was a bout .010 to .015 side to side play where theu joint sits in the yoke.

Re: vibration update on the cuda [Re: cudadan] #126993 10/08/08 05:49 PM 10/08/08 05:49 PM
Joined: Jan 2003 Posts: 9,116 Falconer, NY KatFysh master
KatFysh master Joined: Jan 2003 Posts: 9,116 Falconer, NY	Read through this... https://board.moparts.org/ubbthreads/show...e=0#Post4728051 I'm getting a new one built. When you decide to quit, THAT is the moment when you would've succeeded..

Post deleted by Defbob [Re: cudadan] #126994 10/08/08 06:30 PM 10/08/08 06:30 PM
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Anonymous Unregistered A

Re: vibration update on the cuda #126995 10/08/08 06:41 PM 10/08/08 06:41 PM
Joined: Jan 2003 Posts: 6,000 Anoka County, MN L Leigh master
Leigh master L Joined: Jan 2003 Posts: 6,000 Anoka County, MN	Look Here for a driveshaft

Re: vibration update on the cuda [Re: Leigh] #126996 10/09/08 09:20 PM 10/09/08 09:20 PM
Joined: Aug 2003 Posts: 2,617 Stratford nj cudadan OP master
cudadan OP master Joined: Aug 2003 Posts: 2,617 Stratford nj	Quote: Look Here for a driveshaft just got my new chromoly yoke today, i'll have it in tomorrow, then it's driveshaft time

Re: vibration update on the cuda [Re: cudadan] #126997 10/10/08 08:10 PM 10/10/08 08:10 PM
Joined: Aug 2003 Posts: 2,617 Stratford nj cudadan OP master
cudadan OP master Joined: Aug 2003 Posts: 2,617 Stratford nj	well still has the vibes with the brand new yoke, guess its time to try another driveshaft, almsot forgot how many i've tried in the car lol, or i might just put a whole other rear housing in first, that wont cost me anything

Re: vibration update on the cuda [Re: cudadan] #126998 10/10/08 08:54 PM 10/10/08 08:54 PM
Joined: Nov 2004 Posts: 1,760 Port Alberni, British Columbia MoparDonny top fuel
MoparDonny top fuel Joined: Nov 2004 Posts: 1,760 Port Alberni, British Columbia	How deep is the yoke into the trans and is the rear bushing tight? My driveshaft was 5/8 of an inch or so too short and it vibrated quite bad in the same fashion as you describe. Don.

Re: vibration update on the cuda [Re: MoparDonny] #126999 10/11/08 06:11 PM 10/11/08 06:11 PM
Joined: Aug 2003 Posts: 2,617 Stratford nj cudadan OP master
cudadan OP master Joined: Aug 2003 Posts: 2,617 Stratford nj	Quote: How deep is the yoke into the trans and is the rear bushing tight? My driveshaft was 5/8 of an inch or so too short and it vibrated quite bad in the same fashion as you describe. Don. the drive shaft that i was first using was in there for 6yrs with no issues, im gonna have one of the driveshafts checked out next week

Re: vibration update on the cuda [Re: cudadan] #127000 11/22/08 05:45 PM 11/22/08 05:45 PM
Joined: Aug 2003 Posts: 2,617 Stratford nj cudadan OP master
cudadan OP master Joined: Aug 2003 Posts: 2,617 Stratford nj	well i still have this issue with the vibes. how can i tell if the driveshaft is centered in the car or is it supposed to be to one side of the car more than the other? i measured from the side of the D/S to the frame on both sides and got a 2" difference, not sure if its supposed to be the same, any ideas? also i tried another driveshaft again with the same results. then i tried another center same results. i tested these with out the axles in the car, so i can eliminate all that, and still has vibes at 35mph but in reverse at the same rpm as forward there are no vibes at all smooth as glass

Re: vibration update on the cuda [Re: cudadan] #127001 11/23/08 03:40 AM 11/23/08 03:40 AM
Joined: Jun 2005 Posts: 6,257 gulfport, ms, west mi rowin4 master
rowin4 master Joined: Jun 2005 Posts: 6,257 gulfport, ms, west mi	Quote: one thing i did notice when i put the drive shaft back in there was a bout .010 to .015 side to side play where theu joint sits in the yoke. I mensioned that you should check the rear yoke for spreading [ twice ] on page three, Why are you changing out the front yoke if its destroying the rear u-joint??? There's probably more slop than that also.You might want to try turning thr rear yoke by hand to see if the pinion goes in and out some , if it does it might be the reason it doesen't vibe in reverse it's ok to butt heads, just don't do it with a butthead

Re: vibration update on the cuda [Re: rowin4] #127002 11/23/08 09:11 AM 11/23/08 09:11 AM
Joined: Aug 2003 Posts: 2,617 Stratford nj cudadan OP master
cudadan OP master Joined: Aug 2003 Posts: 2,617 Stratford nj	Quote: Quote: one thing i did notice when i put the drive shaft back in there was a bout .010 to .015 side to side play where theu joint sits in the yoke. I mensioned that you should check the rear yoke for spreading [ twice ] on page three, Why are you changing out the front yoke if its destroying the rear u-joint??? There's probably more slop than that also.You might want to try turning thr rear yoke by hand to see if the pinion goes in and out some , if it does it might be the reason it doesen't vibe in reverse i did put a new billtet yoke on the rear and the ujoint is a nice tight fit now, as for the rear it self i tried another set of gears, this set is a 3.91 with the same results as the 4.30's and the 3.23's

Re: vibration update on the cuda [Re: cudadan] #127003 11/23/08 10:05 AM 11/23/08 10:05 AM
Joined: Jan 2003 Posts: 32,394 Q Quicktree I Win
Quicktree I Win Q Joined: Jan 2003 Posts: 32,394	I had a customers duster that had a vibration problem years ago. I ended up changing all the simple stuff first. changed the tail shaft bushing, output shaft, yokes, ujoints, had the drive shaft balanced. nothing helped. I finally put one of my transmissions in it and the problem was gone. I tore down the tranyy and couldn't see anything wrong

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