I am not familiar with the model but after being a repairer for a long, long time, I haven't encountered any vehicle with axles that have to be "timed", whatever you mean by that? I understand the Chevy Tahoe is available with a variety of specifications depending on year - check in the owner's handbook.
Considering the front wheels of a vehicle travel further than the rear and except when travelling in a dead straight line, all the wheels rotate at slightly different speeds, it is difficult to understand how timing the axles would work and what would be the point.
The only thought I have is some 4-wheel drives used Hardy-Spicer joints in the drive shafts instead of the usual constant velocity type. When such a drive shaft has been dismantled it is important to assemble it correctly but while incorrect assembly is likely to produce a less than smooth ride it is unlikely to produce a roaring noise.
I suggest you begin by revisiting the work you carried out to ensure it is correct...
SOURCE: loud roaring noise
jack up front of car get hold of tyre an see if u get any play if u do u may get away with nipping them up a bit
SOURCE: 2001 Chevrolet Cavalier front End Roar
You must replace wheel bearings in pairs to avoid loading the old bearing and, in time ruining your new bearing hub it is possible that you have already damaged the new hub
SOURCE: Front end roaring noise
jack it up and see if the wheels wobble when you try to move them if they do make sure the play is not in the ball joint it's most likley the bearing
SOURCE: Loud roaring noise in front, steering wheel has vibration, replaced tires didn't help.
Wheel bearings are likly and I've changed many to solve this problem but it's esy to pick the wrong one with e vehical jacked and on jack stands suporting the car by the lower control arms ( normal ride hieght) run the car with a driver and listen to ti run , of course theres no load on the powertrain so there will be some lash ( power on to power decline ) cheack up. The roaring noise can be isolated by puting a sounding bar ( long metal rod ( sr=crew driver)) other against the part till the sound is rounded up rear but possible the carrier bearings in the (rear end) front drive. The axel bearings and on some units the carrier bearing thats in the CV axel on the block. Sounding rod will find and change the noisey part. Professional help is a good idea if you can't carry this out saftly
SOURCE: 1990 Chevy 1500 4x4 won't engage 4 wheel drive
the 4x4 do not engage in my1990 chevy pick up what i need to check
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