Metal scraping noise from driver rear when turning right

[bigfutz]

Thanks [mention]BonestockK1500 [/mention] I just replaced the spline end u-joint (fixed a different clank when reversing torque during accel/decel), u-bolts look like crap but don’t see any signs of looseness or movement. When lifted and manually rotating one rear wheel, other turns in respose without hesitation - does that mean the rear diff is good?

What does it mean if I can push/pull on my rear wheel and get some play?

 

[BonestockK1500]

Thanks [mention]BonestockK1500 [/mention] I just replaced the spline end u-joint (fixed a different clank when reversing torque during accel/decel), u-bolts look like crap but don’t see any signs of looseness or movement. When lifted and manually rotating one rear wheel, other turns in respose without hesitation - does that mean the rear diff is good?

What does it mean if I can push/pull on my rear wheel and get some play?

my guess would be wheel bearings maybe? That’s the only part I can think of that would allow slop in the rear wheel. Unless the main pin running through middle of the rear diff is sloppy and allowing the axle to move in and out but that seems unlikely. But I’ve never heard of wheel bearings causing a Clunk so perhaps there’s more than one issue going on.

 

[BonestockK1500]

my guess would be wheel bearings maybe? That’s the only part I can think of that would allow slop in the rear wheel. Unless the main pin running through middle of the rear diff is sloppy and allowing the axle to move in and out but that seems unlikely. But I’ve never heard of wheel bearings causing a Clunk so perhaps there’s more than one issue going on.

I’m not anywhere near a mechanic so please take these comments as just some dumb guy thinking aloud.

 

[bigfutz]

my guess would be wheel bearings maybe? That’s the only part I can think of that would allow slop in the rear wheel. Unless the main pin running through middle of the rear diff is sloppy and allowing the axle to move in and out but that seems unlikely. But I’ve never heard of wheel bearings causing a Clunk so perhaps there’s more than one issue going on.

My suspicion without knowing all the innerworkings (beginner mechanic speaking), is that I’m hearing the lateral movement of the wheel when I turn. I’m hearing it on the left rear wheel when I turn right, so I’m hearing it when the wheel gets pushed inward.

I’m going to have to break out some books and YouTube videos before I take it apart any further.

 

[BonestockK1500]

My suspicion without knowing all the innerworkings (beginner mechanic speaking), is that I’m hearing the lateral movement of the wheel when I turn. I’m hearing it on the left rear wheel when I turn right, so I’m hearing it when the wheel gets pushed inward.

I’m going to have to break out some books and YouTube videos before I take it apart any further.

I wonder if your rear leaf bushing is sloppy and you actually have the leaf shackle clunk when you turn, as if the shackle is sliding laterally because there’s no bushing material to hold it true. Trying to think of every piece that could move in the rear.

 

[bigfutz]

I wonder if your rear leaf bushing is sloppy and you actually have the leaf shackle clunk when you turn, as if the shackle is sliding laterally because there’s no bushing material to hold it true. Trying to think of every piece that could move in the rear.

When I said u-bolts, the leaf spring ones were the one I was referring to. There’s a lot of crusty stuff under there... I’m just starting with the noisy ones. New to me 1995 Tahoe 2-door 4WD base model (work truck grille, roll-em-up windows, vinyl floor).

 

[bigfutz]

Here’s the amount of slop I’m feeling in my rear wheels. Passenger side first, then driver.

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[bowtie-72]

Here’s the amount of slop I’m feeling in my rear wheels. Passenger side first, then driver.

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That play looks normal except for the lateral movement on the first one, just looks a little excessive, but might be ok. My first thought was the suspension as well, like one of the other posters. Take a good look at your springs. I had a broken leaf on mine years ago and the only time it made a noise like that was when I turned into the parking lot where I worked.

 

[bigfutz]

How about this?

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[mariodave]

Check to see if the drum is rubbing the backing plate. Clean off any rust and debris. Also I had a 89 K1500 that lost the differential carrier bearings and the drum really started rubbing the brake backing plate.