Gain extra benefits by becoming a Supporting Member Click here find out how!
Classic Performance Products Classic Parts
Ciadella InteriorsAmerican Auto Wire Classic Industries
Chevs of the 40sDanchuk Catalog
Hellwig Products IncPerformance Rod & CustomEcklers AutoMotive
Nu-Relics Power Windows
Impala Bob's Bob's Chevy Trucks Bob's Chevelle Parts Bob's Classic Chevy

LMC Truck



Username Post: 2001 z71 4x4 vibes        (Topic#347944)
85 4x4 shortbed 
Member
Posts: 82

Reg: 01-27-03
10-29-17 04:21 PM - Post#2712605    

had trans rebuilt now get vibration at 55mph under acceleration



 
LMC Trucks
rockfangd 
"4th Year" Gold Supporting Member
Posts: 2279

Age: 31
Loc: Utica ny
Reg: 04-13-10
10-29-17 07:48 PM - Post#2712644    
    In response to 85 4x4 shortbed

I would check your U-joints.
Any noise that sounds unusual?

Old School GM fan FOREVER


 
85 4x4 shortbed 
Member
Posts: 82

Reg: 01-27-03
10-30-17 02:46 AM - Post#2712662    
    In response to rockfangd

No sounds until 55mph



 
thx1138v2 
Contributor
Posts: 129

Reg: 05-01-14
10-31-17 05:03 AM - Post#2712771    
    In response to 85 4x4 shortbed

Sometimes things are coincidental. Have you had tires balanced lately? If it's only under acceleration and not at constant speed it wouldn't be tire balance.



 
85 4x4 shortbed 
Member
Posts: 82

Reg: 01-27-03
10-31-17 10:49 AM - Post#2712827    
    In response to thx1138v2

All four crossmember bolts were loose. Tightened them but still vibrates at 55 under load



 
Hohnsz71 
Contributor
Posts: 135

Age: 20
Loc: Dayton Texas
Reg: 02-23-15
11-02-17 06:17 AM - Post#2713041    
    In response to 85 4x4 shortbed

what about the bolts on the t-case adapter, that can bring things out of wack.


2000 chevy silverado "mutt" RIP
1993 chevy k1500, swapping
everything from "mutt"


 
85 4x4 shortbed 
Member
Posts: 82

Reg: 01-27-03
11-08-17 04:21 PM - Post#2713698    
    In response to Hohnsz71

Took back to shop they can’t find anything 😕



 
Hohnsz71 
Contributor
Posts: 135

Age: 20
Loc: Dayton Texas
Reg: 02-23-15
11-09-17 04:05 AM - Post#2713738    
    In response to 85 4x4 shortbed

What about any clean spots wear weights may have came off the drive shafts.


2000 chevy silverado "mutt" RIP
1993 chevy k1500, swapping
everything from "mutt"


 
wagonman100 
Super Senior Member
Posts: 13924
wagonman100
Loc: Baltimore, MD
Reg: 11-27-04
11-11-17 02:19 PM - Post#2714048    
    In response to Hohnsz71

Try taking the driveshaft loose and turning it 180 degrees from where it is installed now. It can make a difference.

Jay
Some days it's not worth chewing through the restraints.

1999 Silverado Z71 4X4 extra-cab short bed
1983 Malibu Fauxmad - tubbed
1978 El Camino Kustomized
1972 Monte Carlo
1957 210 handyman wagon
1957 Nomad sport wagon


 
85 4x4 shortbed 
Member
Posts: 82

Reg: 01-27-03
11-12-17 07:21 AM - Post#2714120    
    In response to wagonman100

Only feel vibration in overdrive



 
LMC Trucks
Icon Legend Permissions Topic Options
Report Post

Quote Post

Quick Reply

Print Topic

Email Topic

679 Views
FusionBB
FusionBB™ Version 2.1
©2003-2006 InteractivePHP, Inc.
Execution time: 0.318 seconds.   Total Queries: 13   Zlib Compression is on.
All times are (GMT -0800) Pacific. Current time is 01:29 AM
Top