Get the tranny repaired, all the brakes and axle seals. Never had the
truck over 80kph so I never noticed the vibration and noise between 80kph
and 95kph.. haven't had it over 100 so don't know if it will og away.. Is
this the U Joints ?... I climbed under the truck and tried moving the drive
shaft for play but none.. I had the rear cover off the rear end and seen no
shavings or whatever...put new oil in and it runs fine other than this.. it
kinda makes noise and vibrates (not all that bad but enough to annoy you)
but only at this speed.. thanx for any advice..
Don't quite see how this is a specific Blazer's issue, but....could be a
shifted cord in the tire, could be unbalanced rear tires, could be mud stuck
in the inside of the rear wheels (very common after off roading), could be
an unbalanced driveshaft, could be the rear U joint (which would'nt
necessarily be loose when checking play), or it could be a bent half shaft
in the differential. And all this is assuming that the vibration is indeed
coming from the drivetrain.
I had a 305 truck 2wd that did this but sold it before I figured it out.. It
feels the same and the u joints were screwed in it.. I'll check the tires
but seems like a low growl / vibration ..For the effort I could change the
Try Check U joints for tighness and if they are dry or stiff. If they
are 100% good, you may have a drive shaft balance problem. I have seen
many drive shafts out of balance from factory. Age with stress and
corrosion can make it worse
On Fri, 13 Apr 2007 18:14:59 -0400, ChEvRoLeT wrote
I'll try to make this short....
My 03 Silverado 4by picked up a vibration that was felt more in the floor
than anywhere....Brought it to the "Experts" (read Morons) at the local GM
Dealer. 2100 bucks later they give the truck back with the bearings replaced
in the Quadra-Steer Diff. Drive 100 feet and feel the vibration....bring it
to another shop and 600 bucks later I have a new front wheel bearing and no
vibration. Point of this story....I'm not a mechanic, but this is the first
vehicle I've ever owned that stumped me like this. There was no feedback
throught the steering wheel... If this helps - great, if not...I got to tell
my GM dealer story one more time....Good Luck Bud.
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.