I have a 1999 Chevy S-10 and it leans to the right at about an 1" and has no torsion baron the truck to adjust it any thoughts on this besides new Leaf Springs or helper springs.. I need to fix the leaning problem...

the torsion bar on that side may need some extra tension by adjusting the bolt ( torsion bars )
the coil spring may need replacing as they can sag ( if coil springs )
check for same size tires all round
the size you will be checking is the middle figure on the tires
for example :- 205/ 95 r 16 --it is the 95 that has to be the same because if that dimension is smaller say 205/ 65 r 16 that difference will dip the car in that direction

loosen of the lock nut on the adjuster bolt and then turn it in to increase the tension in the torsion bars
if turning that bolt is difficult then a jack under the front of the vehicle will lighten the load on the thread and make turning easier
remember that adjusting the height if the vehicle by adding extra tension to the torsion bars will alter the wheel alignment

The code means the sensor is staying in lean or rich mode for too long. The computer is supposed to adjust fuel mixture to make the exhaust switch back and forth from lean to rich every 10 or 20 seconds.
If the engine is not warming up the emissions system will not go into closed loop which allows the computer to make the adjustments.
Do you know if the engine is reaching normal temp ?
Any exhaust leaks upstream ?

Removal Steps

1. Torsion bar

2. Wheel speed sensor

(if equipped with ABS)

3. Back plate

4. Lower ball joint

5. Upper ball joint

6. Knuckle assembly

7. Oil seal

8. Thrust washer

9. Needle bearing

10. Knuckle

Installation Steps

10. Knuckle

9. Needle bearing

8. Thrust washer

7. Oil seal

6. Knuckle assembly

5. Upper ball joint

4. Lower ball joint

3. Back plate

2. Wheel speed sensor

(if equipped with ABS)

1. Torsion bar

Adjustment is made by way of the torsion bar adjuster at the rear of the torsion bar(arrowed) :




I would advise that you visit an alignment shop because as soon as you adjust the height it affects other variables on the setup such as the camber angle for one thing. You may also want to investigate the reason for the sag.

1995-2005 Models NOTE: The following procedure requires the use of the torsion bar unloader tool No. J-36202 or equivalent.

1. Raise and safely support the vehicle.
2. Remove the transmission shield, if equipped.
3. Install a torsion bar unloader tool to relax the tension on the torsion bar adjusting arm screw; record the number of turns necessary to properly install the tool. Remove the adjusting screw and the unloader tool.
4. Unfasten the lower link mount nut from one side, then disengage the torsion bars. NOTE: Note the direction of the forward end and side of the torsion bar being removed
   
5. Remove the lower link nut from the opposite side.
6. Remove the lower link mount, upper link mount nut, upper link mount and then unfasten the torsion bar from the frame.

To Install:

1. Install the torsion bar and support.
2. Install the upper link mount and mount nut.
   • Tighten the nut to 33 ft. lbs. (45 Nm) on 1995-96 models and 48 ft. lbs. (65 Nm) on 1997 and later models.
3. Place a jack under the torsion bar to release tension, then install the lower link mount bushing and nut.
   • Tighten the nut to 13 ft. lbs. (18 Nm) on 1995 models, 50 ft. lbs. (68 Nm) on 1996-98 models and 37 ft. lbs. (50 Nm) on 1999 and later models.
4. Install the torsion bar unloader tool and tighten the tool against the adjusting arm the same number turns recorded earlier, then remove the tool. This loads the torsion bars.
5. Install the transmission shield, if removed.
6. Remove the jackstands and lower the vehicle.
7. Check and adjust the Z height as outlined in the wheel alignment portion of this section.

Shock don't have any thing to do with ride height. It should be a coil or leaf spring, or on some vehicles, a torsion bar, that keeps it level.

Adjusting the torsion bars will throw the camber off and eat up your tires.

I'm going to use the torsion bar crossmember as the reference point.Laying behind the torsion bar crossmember on your stomach,looking squarely at and across the crossmember,the adjusters that the torsion bars slip into,want to as level as possible from left to right,or right to left in relation to the crossmember.Insert the torsion bar in the front anchor point,on the lower control arm,take it on through so that you can raise the rear up,and bring it on back to the rear anchor,now,look at where it should slip through with the rear adjusters about level.bring the torsion bar on back and engage the rear adjuster/anchor point.Should be it.