jlashley2001ss

iTrader: (5)

I'm getting a pulsing vibration i can hear more so than feel. What could this be? It doesn't seem to be coming from tires/wheels. It seems to happen when i get up to speeds around 50mph. TIA guys

6.0 silverado

iTrader: (2)

Need a little more info. Is engine rpm related or speed related? Describe the vibration in more detail.

Daryn

iTrader: (19)

maybe check your pinion angle

1BAD_LS1 Tunes

iTrader: (8)

might be your rear, pinion angle is off, could be the trans internally, driveshaft lost its weights, u joint, balancer pulley is loose, could be alot of stuff....

we need more information!

jlashley2001ss

iTrader: (5)

could tires be the issue??

fleetmgr

They could be, but as others have said, more info needed.

jlashley2001ss

iTrader: (5)

I had my tires switched off with my bro's Nitto 555 Extreme, and it seems to have helped out alot! Think this may have been the issue.

fleetmgr

I'd have the other tires checked for a tread separation, then.

jlashley2001ss

iTrader: (5)

well im going to bring this back. Tires more or less hid the issue. I feel it around the 2100-2500 rpm range. I do not feel it in the steering wheel. To help you gives get a better idea, I can put a bottled water in the cup holder in the middle console area, and you can see the water "ripple" alot and bottle itself moves around some. Hope that helps a lil.

Drew24

Do you have a poly urethane tranny mount? Or any poly mounts? They usually tend to cause alot of vibrations because they are more solid then the rubber stock mounts.

jlashley2001ss

iTrader: (5)

good question. I had my tranny rebuilt and not sure what tranny mounts he used. Would poly mounts cause a vibration as just certain rpm's???

Drew24

yeah mine does like crazy it was annoying at first but you can shave the side of it to stop some of the vibrations. Jack the car up and see if its rubber or a poly because if it is thats why you get the vibration. The rubber is going to have rubber on both sides and on top and then be hollow in the middle. The poly is going to be completely solid.