Replacing lower control arm on S10, torsion bar question
12-03-2014, 05:40 AM
#1
Retired Administrator
True Car Nut
Thread Starter
Replacing lower control arm on S10, torsion bar question
I am planning on replacing the lower control arms on a 1998 4wd ZR2 S10.
I have never worked with torsion bars before. I know they can be very dangerous and be a safety concern. Most research says I need a torsion bar unloading tool .
I just saw a video where a mechanic just loostned the torsion bar bolt near the rear of a full size Chevy truck without using the unload toolhttps://www.youtube.com/watch?v=3ST9DLuKI0g .
Looking for any advice on the proper way to release torsion arm pressure on the LCA so I can remove and replace the LCA.
I have never worked with torsion bars before. I know they can be very dangerous and be a safety concern. Most research says I need a torsion bar unloading tool .
I just saw a video where a mechanic just loostned the torsion bar bolt near the rear of a full size Chevy truck without using the unload toolhttps://www.youtube.com/watch?v=3ST9DLuKI0g .
Looking for any advice on the proper way to release torsion arm pressure on the LCA so I can remove and replace the LCA.
12-03-2014, 06:59 AM
#2
Senior Member
True Car Nut
i think thats just a saftey type thing, like putting a chain on a coil. you can do the same with a cclamp. just measure the distance, so you can put the bolts exactly back were they were
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GunsOfNavarone (12-03-2014)
12-03-2014, 08:11 AM
#4
Retired
Certified Car Nut
Per Alldata for my 2002 S10 4X4
Installation
Torsion Bar and Support Assembly Replacement
•Tools Required
•J 36202 Torsion Bar Loading/Unloading Tool
Removal Procedure
Notice: Use care when handling the torsion bars in order to avoid chipping or scratching the coating. Damage to the coating will result in premature failure of the torsion bars.
1.Raise and support the vehicle. Refer to Vehicle Lifting.
2.Mark the adjuster bolt.
•Tools Required
•J 36202 Torsion Bar Loading/Unloading Tool
Removal Procedure
Notice: Use care when handling the torsion bars in order to avoid chipping or scratching the coating. Damage to the coating will result in premature failure of the torsion bars.
1.Raise and support the vehicle. Refer to Vehicle Lifting.
2.Mark the adjuster bolt.
3.Install J 36202 to the adjustment arm and the crossmember.
4.Increase the tension on the adjustment arm until the load is removed from the adjuster bolt.
Important: To aid in assembly, record the number of turns the tool makes when removing the adjuster bolt.
5.Remove the adjuster bolt and adjuster nut.
6.Remove J 36202 from the adjustment arm, allowing the torsion bar to unload.
7.Remove the adjustment arm by sliding the torsion bar forward until the torsion bar clears the adjustment arm.
4.Increase the tension on the adjustment arm until the load is removed from the adjuster bolt.
Important: To aid in assembly, record the number of turns the tool makes when removing the adjuster bolt.
5.Remove the adjuster bolt and adjuster nut.
6.Remove J 36202 from the adjustment arm, allowing the torsion bar to unload.
7.Remove the adjustment arm by sliding the torsion bar forward until the torsion bar clears the adjustment arm.
8.Remove the torsion bar support link upper mounting nuts.
9.Remove the torsion bar support link upper mounting bolts.
10.Remove the torsion bar support from the frame.
9.Remove the torsion bar support link upper mounting bolts.
10.Remove the torsion bar support from the frame.
11.Remove the torsion bars. Note the exact direction of the forward end and the side of the torsion bar that is being removed
12.Remove the torsion bar links lower retaining nuts.
13.Remove the torsion bar links from the torsion bar support
13.Remove the torsion bar links from the torsion bar support
Installation
1.Install the torsion bar links to the torsion bar support.
Notice: Refer to Fastener Notice in Service Precautions.
2.Install the torsion bar links lower retaining nuts. Tighten the torsion bar links lower retaining nuts to 50 Nm (37 ft. lbs.).
Notice: Refer to Fastener Notice in Service Precautions.
2.Install the torsion bar links lower retaining nuts. Tighten the torsion bar links lower retaining nuts to 50 Nm (37 ft. lbs.).
3.Install the torsion bars in relation to where the bars were removed.
4.Install the torsion bar support to the frame.
5.Install the torsion bar support link upper mounting bolts to the frame.
4.Install the torsion bar support to the frame.
5.Install the torsion bar support link upper mounting bolts to the frame.
6.Install the torsion bar support link upper mounting nuts. Tighten the torsion bar support link upper mounting nuts to 65 Nm (48 ft. lbs.).
7.Install the adjustment arm to the torsion bar support and slide the torsion bar rearward until the torsion bar fully engages the adjustment arm.
7.Install the adjustment arm to the torsion bar support and slide the torsion bar rearward until the torsion bar fully engages the adjustment arm.
8.Install J 36202 to the adjustment arm and the crossmember.
9.Increase the tension on the adjustment arm in order to load the torsion bar.
Important: Tighten the adjuster bolt the same amount of turns that were required to remove the adjuster bolt during removal.
10.Install the adjuster bolt and adjuster nut
11.Remove J 36202 from the adjustment arm and crossmember.
12.Lower the vehicle.
13.Check the wheel alignment.
9.Increase the tension on the adjustment arm in order to load the torsion bar.
Important: Tighten the adjuster bolt the same amount of turns that were required to remove the adjuster bolt during removal.
10.Install the adjuster bolt and adjuster nut
11.Remove J 36202 from the adjustment arm and crossmember.
12.Lower the vehicle.
13.Check the wheel alignment.
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2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
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2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
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GunsOfNavarone (12-03-2014)
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Mike (12-03-2014)
12-03-2014, 08:46 AM
#6
Retired
Certified Car Nut
Your welcome. Hope it helps!
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2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
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2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
03-11-2018, 04:27 PM
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2000 Chevy Blazer 4x4 Upper & Lower control arms-
First post here, you guys seem pretty well educated on these trucks.
Truck is what title says, any tips, pointers for the job i'm looking to take on here?
I'm really doing the whole front. I have 4 new tires for it already, and i just purchased the following- but most importantly the control arms.
I can replace Rotors, pads, bearings already- just never done the arms. Or the pitman/idler arm....or the tie rod ends..
ACDELCO 18A862AC Rotor x2
ACDELCO 46A0222A Tie Rod End x2
ACDELCO 46A0930A Tie Rod End x2
ACDELCO 45C1043 Idler Arm x1 (Have new moog Pitman)
DORMAN 31064 Bumper
MOOG CK620173 Control Arm
MOOG CK620172 Control Arm
MOOG RK620464 Control Arm
MOOG RK620300 Control Arm
MOOG ES2004S Tie Rod End Adjusting Sleeve
MOOG K700526 Stabilizer Bar Link
TIMKEN 513124 Wheel Bearing & Hub Assembly x2
WAGNER SX726 Brake Pad
Truck is what title says, any tips, pointers for the job i'm looking to take on here?
I'm really doing the whole front. I have 4 new tires for it already, and i just purchased the following- but most importantly the control arms.
I can replace Rotors, pads, bearings already- just never done the arms. Or the pitman/idler arm....or the tie rod ends..
ACDELCO 18A862AC Rotor x2
ACDELCO 46A0222A Tie Rod End x2
ACDELCO 46A0930A Tie Rod End x2
ACDELCO 45C1043 Idler Arm x1 (Have new moog Pitman)
DORMAN 31064 Bumper
MOOG CK620173 Control Arm
MOOG CK620172 Control Arm
MOOG RK620464 Control Arm
MOOG RK620300 Control Arm
MOOG ES2004S Tie Rod End Adjusting Sleeve
MOOG K700526 Stabilizer Bar Link
TIMKEN 513124 Wheel Bearing & Hub Assembly x2
WAGNER SX726 Brake Pad
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GunsOfNavarone
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12-10-2014 02:57 PM