Clunk noise not u joint

[Familytahoe]

2001 Chevy Tahoe 4 wheel drive. Truck started to make a clunking noise when shifting while driving when changing gears.. does not do it when I take off real slow.. slid under the truck and tried to wiggle the driveshaft around and there is no play so I do not suspect it is the U-joint and the transmission was changed less than 15K ago.

Any advice I have Sunday to look at it?

 

[Doubeleive]

slip-yoke? mine clanks all the time

 

[Scottydoggs]

ive heard the torsion bar mounts can come loose.

 

[Familytahoe]

slip-yoke? mine clanks all the time

Is it really loud though?

 

[Familytahoe]

ive heard the torsion bar mounts can come loose.

I'll take a look at them thank you

 

[CountryBoy19]

Pull the bolts on driveshaft (after blocking so it doesn't roll) and see how much backlash is in your differential.That's what was causing my clunk.

 

[SnowDrifter]

I have a small clunk when going between 2 and 3. 4l60e operation allows a slight reverse torque during this shift. That much is normal

Between other gears is not

 

[Doubeleive]

Is it really loud though?

my 00 nbs used to be a little noisy yes, on my nbs it's not noisy but I can feel it almost feels like a broken motor mount but it's not a motor mount.

 

[Familytahoe]

2001 Chevy Tahoe 4 wheel drive. Truck started to make a clunking noise when shifting while driving when changing gears.. does not do it when I take off real slow.. slid under the truck and tried to wiggle the driveshaft around and there is no play so I do not suspect it is the U-joint and the transmission was changed less than 15K ago.

Any advice I have Sunday to look at it?

Update now it doesn't have reverse and in drive it takes forever to shift into gear

 

[Scottydoggs]

you check the trans fluid level? low fluid will cause this.

 

[Familytahoe]

I did it's not low

 

[Familytahoe]

you check the trans fluid level? low fluid will cause this.

Its full

 

[SnowDrifter]

At this point, I would advise you drop driving the vehicle. See if you can get a hold of a tech 2. Basically check for any trans codes, verify solenoid activation, etc. Anything you can get a hold of that would cause issue short of throwing in the towel and replacing a couple thousand dollar transmission

 

[lkrasner]

My slip yoke clunks loud as hell and always has for the record. Little less if I grease it up real good before sticking it back in. Only really heard when shifting from park into gear though, no noises on shifts.