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Username Post: driving home tonight and loud counk and now car shaking bad        (Topic#363961)
Adam63impala 
"3rd Year" Silver Supporting Member
Posts: 790
Adam63impala
Loc: From Memphis to Florida
Reg: 12-01-15
01-12-21 04:44 PM - Post#2811946    

was driving home tonight, car seemed to be shaking a little more than normal . went to grocery store . pulled out and as I go to accelerate I hear a loud clunk sound and my car starts shaking very bad . I couldn't even go above 15 or the shaking was very bad . any ideas ? checked the tranny fluid and it appears full .



 


69_BOWTIE 
Senior Member
Posts: 1102

Loc: WYOMING,USA
Reg: 02-27-02
01-12-21 04:50 PM - Post#2811947    
    In response to Adam63impala

Center carrier bearing does it do it only while moving??

2001 Silverado 4X4
2005 FXDWGI
69 CHEVY Short Step
63 IMPALA 2/DR HRDTOP 327


 
turbo38s10 
"10th Year" Gold Supporting Member
Posts: 1856
turbo38s10
Loc: Agawam,MA
Reg: 09-17-09
01-12-21 04:54 PM - Post#2811948    
    In response to 69_BOWTIE

dito on the driveshaft.



 
Adam63impala 
"3rd Year" Silver Supporting Member
Posts: 790
Adam63impala
Loc: From Memphis to Florida
Reg: 12-01-15
01-12-21 05:06 PM - Post#2811949    
    In response to 69_BOWTIE

yes only while moving and vibrated worse the faster I went . I was only going about 15 mph bc it was so bad . would the air ride suspension have maybe caused this bearing to go bad ?



 
Adam63impala 
"3rd Year" Silver Supporting Member
Posts: 790
Adam63impala
Loc: From Memphis to Florida
Reg: 12-01-15
01-12-21 05:16 PM - Post#2811951    
    In response to Adam63impala

also, is it supposed to make a clunking sound every time I put it in drive or reverse ? bc its done that for as long as I can remember...



 
RambosRide 
Poster
Posts: 51
RambosRide
Reg: 10-01-20
01-12-21 06:50 PM - Post#2811965    
    In response to Adam63impala

Center carrier bearing or losing a u-joint...better crawl underneath and take a look!



 
Adam63impala 
"3rd Year" Silver Supporting Member
Posts: 790
Adam63impala
Loc: From Memphis to Florida
Reg: 12-01-15
01-12-21 07:15 PM - Post#2811967    
    In response to RambosRide

should I get a slip joint drive shaft since running air ride and riding low ?



 
rrausch 
"16th Year" Silver Supporting Member
Posts: 14450
rrausch
Loc: L.A, Cal. & St. Louis...
Reg: 04-07-03
01-12-21 10:16 PM - Post#2811981    
    In response to Adam63impala

Check your fan first. Old fans do break and send a fan blade flying. The resulting vibration is hard to believe. Been there, had that happen.

1953 210 Convertible, 261 with dual Carter YF 966S carbs, P.S., Remote Bendix P.B. Booster... shade-tree restoration about done.




 
Nitroholic 
"16th Year" Gold Supporting Member
Posts: 324
Nitroholic
Loc: Out West In SoCal
Reg: 05-08-03
01-13-21 09:00 AM - Post#2811999    
    In response to rrausch

The worn out u-joint or bearing that you have been listening to go clunk ever time you put the car in gear for as long as you can remember has probably now given up the ghost entirely.
Remove the driveshaft and renew all of the consumable parts.

'66 C-10 Short Fleetside Big Window



Edited by Nitroholic on 01-13-21 09:04 AM. Reason for edit: No reason given.

 
japete92 
"7th Year" Silver Supporting Member
Posts: 1558
japete92
Loc: No. Virginia
Reg: 01-18-13
01-13-21 09:09 AM - Post#2812002    
    In response to Adam63impala

  • Adam63impala Said:
should I get a slip joint drive shaft since running air ride and riding low ?




A few suggestions prior to 'guessing' and throwing money at the problem:

Look under the car for obvious problems.

Sitting still, in neutral; rev the engine. Hear your noise? If so, the problem is NOT in the drive train, nor the suspension.

When driving and making the 'noise', does putting the car in neutral (and coasting) make it stop? If so, it's likely in the drive train; not suspension.

Allow the car to roll down a hill (in neutral, engine running or not) and get up to the speed the 'noise' typically appears. Hear 'noise'? If yes, it's not torque related, it's speed related (suspension).

Another 'test' for 'speed' vs 'torque' causation; as the car is allowed to coast 'faster', does the 'noise' increase in frequency? If so, suspension needs a thorough inspection.

The proper drive train angles, and how to measure them, are in the 61 Shop Manual. Check 'should be' vs what you have. If you are significantly 'off', you are putting more stress on the drive train parts.

All 'free' inspections/tests.

In summary, find the problem THEN correct it.

Pete





 
DonSSDD 
Silver Supporting Member
Posts: 7461
DonSSDD
Loc: Nova Scotia, Canada
Reg: 08-21-01
01-13-21 12:44 PM - Post#2812017    
    In response to japete92

While coasting in neutral with engine running or not, the driveshaft is turning and if it’s a bad center bearing, it will likely be banging.

63 Pontiac Parisienne Sport Coupe(CDN Chev mechanically (409, 4 speed),62 Bel Air SC (sold), 59 El Camino (sold), 62 Bel Air SC(sold), 63 SWC Vette (sold),
Member #2194


 
japete92 
"7th Year" Silver Supporting Member
Posts: 1558
japete92
Loc: No. Virginia
Reg: 01-18-13
01-13-21 01:23 PM - Post#2812019    
    In response to DonSSDD

  • DonSSDD Said:
While coasting in neutral with engine running or not, the driveshaft is turning and if it’s a bad center bearing, it will likely be banging.



You're right. The rear gears will rotate it as the wheels rotate. I know that. My bad.

Pete



 
USCGMK1 
Contributor
Posts: 189

Loc: Vicksburg, Mississippi
Reg: 07-24-15
01-13-21 02:30 PM - Post#2812020    
    In response to Adam63impala

I’d check carrier bearing and U-Joint. I’d get the HD carrier bearing and slip yoke.



 
ragtp66 
Contributor
Posts: 954

Reg: 12-09-07
01-13-21 07:39 PM - Post#2812032    
    In response to Adam63impala

Yes and YES best deal will be from show-cars.com You can buy just the rear half with slip yoke and the billet/poly carrier bearing

Toys:
1958 Impala 2dr Hardtop Under Construction
1966 Chevelle Malibu Convert M20/350 Aztec Bronze
1987 Sea Ray Pachanga 22
2002 Cadillac Escalade EXT Parts chaser
2007 Trailblazer SS -gone and missed


 
Adam63impala 
"3rd Year" Silver Supporting Member
Posts: 790
Adam63impala
Loc: From Memphis to Florida
Reg: 12-01-15
01-14-21 07:43 AM - Post#2812051    
    In response to ragtp66

okay cool thank you . I'm headed to work and will have to check them out tonight . unless you don't mind telling how much they charge for that and if they are in stock? I hope this is an easy job for me to do in my garage



 


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