tire wear

[Wes Harden]

so my 01 2wd gmt800 with torsion bar suspension, is wearing the front tires poorly. I have inspected the front suspension and steering components, replace the worn bump stops, and an idler that had a small bit of wear, the rest of it is tight and good.
I was blaming the tires, but recently I saw on FB some one saying this typical for a gmt800 with torsion bars. Is this true ?
I have 25kish miles on these tires and have rotated them at least 7 times, to even out the wear and cut down on the low frequency noise. I was about to drop some coin on some aftermarket control arms and steering but if this is a design flaw then I'll just keep rotating tires.

 

[obijuank5]

Pics of the tire wear?

 

[RaisedK5]

Is it wearing the outside? My 05 2500 has a little extra wear on the outside of the fronts. Have had it aligned. New bumps. Everything else is tight. I just learned to rotate them every couple oil changes.

 

[Wes Harden]

Pics of the tire wear?

I'll get pics. Wear is ragged feather on the outside lugs inside and out side. I run @40 psi in the fronts even though they are e rated tires

 

[70jimmy]

My 2002 mini blazer wore the outside of the front tires like that. It was torsion bar. I replaced control arms, ball joints, tie rod ends and stabilizer bushings along with shocks. It made it better but didn't cure it.

 

[Cucv_M1008]

Check the ball joints, my gmt800 was wearing bad so new ball joints and front hub units and it fixed it.

 

[imiceman44]

I'll get pics. Wear is ragged feather on the outside lugs inside and out side. I run @40 psi in the fronts even though they are e rated tires

First thing even E rated tires you don't want to run more than 40 psi unless it's loaded all the time.
Second my 98 suburban and my 97 jimmy both are torsion bar and I never wore tires unevenly until last month on the suburban and it was from bad upper control arm bushings.
A bad adjustment on those will wear badly.
Now the ragged feathering is a sign of bad shocks. Are yours old and worn out?

 

[Wes Harden]

shocks I am used to seeing more of cupping feathering, that said my shocks are factory air ride. unobtianium atm. my camber and toe are good, checked recently. Caster doesn't cause tire wear.