Next Level Performance
October 18, 2026 • 10 min read
Our Verdict
For most lifted, leveled, or sagging 1999-2006 GM trucks and SUVs, the SPC Performance 86470 fixed-offset upper control arms are the best overall fix.
They add +2° of caster, ride on forged bodies with greasable ball joints, and cover both 2WD and 4WD 1500 trucks plus the Tahoe, Suburban, and Yukon — all for around $550. Chasing a low, static-drop street truck instead? Step up to the RideTech StrongArms.
Shop Our Top Pick →The best upper control arms for a 1999-2006 Chevy Silverado, Sierra, Tahoe, Suburban, or Yukon are adjustable or offset arms that restore front caster and camber after you lift, level, lower, or simply rack up miles on a GMT800 chassis. These trucks are now 20-plus years old, the factory stamped-steel arms and their riveted ball joints wear out, and any ride-height change pulls the alignment out of spec. In this guide the team at NLP Performance in Tampa, FL compares the two brands we trust most for the GMT800 platform — SPC Performance and RideTech — so you can match the right upper control arm to your build.
Why Do 1999-2006 GM Trucks Need New Upper Control Arms?
A 1999-2006 GM truck needs new upper control arms because any lift, leveling kit, or lowering job moves the front suspension out of its factory alignment window, and the OE cam adjusters alone cannot pull caster and camber back into spec. The GMT800 platform — Silverado 1500, Sierra 1500, Tahoe, Suburban, Yukon, Avalanche, and Cadillac Escalade — uses a torsion-bar front end with stamped-steel upper arms. When you crank the torsion bars for a 1-2 inch level or bolt on a 3 inch lift, the upper ball joint swings through an arc that kills positive caster, and the truck wanders, tramlines, and chews the inside edge of the tires.
Age is the second problem. Two decades of Florida heat and winter road salt up north cook the factory rubber bushings and the sealed ball joints, which GM riveted into the arm from the factory. Once there is play in the joint, no alignment will hold. Replacing the complete arm with a forged or tubular aftermarket unit restores the geometry and gives you a serviceable, greasable ball joint at the same time. An offset or adjustable upper arm then adds back the positive caster the lift stole, so the steering self-centers and the truck tracks straight at highway speed.
SPC's forged offset arm adds +2 degrees of caster to correct a lifted or leveled GMT800 front end.
Top Pick: SPC 86470 Adjustable Upper Control Arms
The SPC Performance 86470 is our top pick for 1999-2006 GM trucks and SUVs because it corrects alignment on the widest range of builds — 2WD or 4WD, lifted or lowered — while remaining a true street part. These are fully forged, fixed-offset upper control arms that build in +2° of caster change. You install the arm, then use the factory alignment cams to dial in the final numbers. SPC's xAxis sealed flex joints replace the OE ball joint with a design that pivots freely through full suspension droop without binding, and the ball joints are booted and greasable so they last the life of the truck rather than the two or three years a loaded OE arm survives.
Key Specifications
What We Like
- + Corrects caster and camber after a level, a 3 inch lift, or a mild drop
- + Fully forged body with booted, greasable ball joints built to outlast the truck
- + xAxis flex joints allow full droop travel without binding, and fit 2WD and 4WD
Things to Consider
- – Fixed-offset design still needs a professional alignment to finish the setup
- – Front-upper only — worn lower ball joints or idler and pitman parts are separate
Best for Lowered Street Trucks: RideTech StrongArms Upper
For a static-drop or pro-touring 1999-2006 Silverado or Sierra 1500, the RideTech StrongArms front upper control arms are the better choice. These are fabricated tubular arms built specifically for lowered 2WD GMT800 trucks. They run Delrin bushings instead of soft rubber, which tightens up steering response and removes the vague, disconnected feel a lowered truck gets on worn OE arms. The arms ship as a pair with ball joints installed, and the satin-black powder coat shrugs off humidity and salt. RideTech designed these to re-locate the upper ball joint for a lowered ride height so the geometry stays sane when the truck sits on the ground.
What We Like
- + Tubular arms with Delrin bushings sharpen steering feel on lowered street trucks
- + Satin-black powder coat resists Tampa humidity and northern road salt
- + Direct bolt-in pair for 1999-2006 Silverado and Sierra 1500 2WD
Things to Consider
- – 2WD applications only — 4WD GMT800 owners should run the SPC 86470 instead
- – Built for drop and handling, not for adding lift height
Delrin bushings and a tubular body give lowered 2WD GMT800 trucks a tighter, more connected steering feel.
For Air-Ride and Coilover Builds: RideTech StrongArms Lower
If your 1999-2006 Silverado or Sierra build runs ShockWaves or coilovers, the RideTech StrongArms front lower control arms complete the front suspension. These tubular lower arms are designed to work with a coil-over or air-spring conversion — they are not a drop-in replacement for a factory torsion-bar truck. The pair includes ball joints, sway-bar end links, and Delrin bushings, all powder-coated satin black. At roughly the $1,000 mark they are the most specialized option here, aimed at the full static-drop or bagged street truck rather than a daily-driven, torsion-bar rig.
The StrongArms lower arm is built for ShockWave or coilover conversions, not a stock torsion-bar front end.
Upper Control Arm Comparison: SPC vs RideTech
Here is how the three GMT800 control arms stack up. The SPC 86470 is the versatile, do-everything alignment arm; the RideTech uppers are the lowered-truck handling arm; and the RideTech lowers are the air-ride and coilover piece. All three are in stock at NLP Performance with verified fitment for the 1999-2006 platform.
The forged SPC arm and its sealed xAxis flex joint are the versatile pick across lifted, leveled, and mildly lowered GMT800 trucks.
| Kit | Best For | Construction | Drivetrain | Price |
|---|---|---|---|---|
| SPC 86470 Upper Control ArmsTop Pick | Lift, level and drop alignment | Forged, greasable xAxis joints | 2WD and 4WD | $549.96 |
| RideTech StrongArms Upper | Lowered / pro-touring street | Tubular, Delrin bushings | 2WD only | $575.00 |
| RideTech StrongArms Lower | Air-ride / coilover builds | Tubular lower, Delrin + end links | 2WD only | $995.00 |
What About 2001-2006 GM HD (2500HD/3500) Trucks?
Owners of a 2001-2010 Silverado or Sierra 2500HD or 3500 should look at the ICON 78550DJ tubular upper control arms with the Delta Joint. The 2500HD and 3500 use a heavier front end than the 1500, so the 1500-focused arms above do not apply. ICON's Delta Joint is a high-angle, heavy-duty ball joint with a zinc-plated housing and a sealed grease boot — it keeps the articulation of a uniball but adds the corrosion resistance a daily-driven snow-and-salt truck needs. At around $880 a pair it is the arm we recommend for lifted 3/4- and 1-ton GM trucks that need both strength and alignment correction.
For lifted 2500HD and 3500 trucks, the ICON Delta Joint arm trades the 1500 arms for a heavier-duty high-angle joint.
Not sure which truck you have? The 1500 is the half-ton Silverado or Sierra; the 2500HD and 3500 are the three-quarter- and one-ton heavy-duty models with the larger frame and 8-lug wheels. Our Tampa team can confirm the right arm from your VIN before you order.
How to Choose the Right GMT800 Control Arms
Choose your 1999-2006 GM control arms by ride-height goal and drivetrain. If you are leveling or lifting a 1500 truck or a Tahoe, Suburban, or Yukon — in 2WD or 4WD — the SPC 86470 is the answer, because it is the only arm here that adds caster back and fits 4WD. If you are lowering a 2WD 1500 for a street or pro-touring stance, the RideTech StrongArms upper is purpose-built for that geometry. If you are going all the way to air ride or coilovers on a 2WD truck, pair the RideTech upper and lower StrongArms together. And if your rig is a 2500HD or 3500, step up to the ICON Delta Joint arm.
Booted, greasable ball joints are the serviceable upgrade over GM's riveted, sealed factory joints.
One more honesty check: control arms fix geometry and joints, not ride quality on their own. A truck that bounces or sags also needs fresh shocks and, on 4WD models, correct torsion-bar indexing or a quality leveling kit. Replacing the uppers while the lowers, tie-rods, or idler arm are worn out will mask the real problem — have the whole front end inspected before you throw parts at an alignment that will not hold.
Installation and Alignment Notes
Plan on an alignment immediately after any upper control arm swap on a 1999-2006 GM truck. The job itself is a straightforward bolt-in for a competent DIYer with a ball-joint press or a spring compressor and a torque wrench, and most owners finish one side in about an hour. Support the lower arm under spring load, unbolt the OE upper, and transfer the ride over to the new arm. The critical step is the finish: because the SPC arm adds a fixed +2° of caster, you must set the truck on an alignment rack afterward and use the factory cams to center camber and toe. Skipping the alignment will burn a set of tires in a few thousand miles. At NLP Performance we install and align GMT800 front ends in-house in Tampa, and we are happy to talk you through a driveway install over the phone.
Frequently Asked Questions
Do I need new upper control arms after leveling my Silverado?
Yes — leveling a 1999-2006 Silverado 1500 adds positive rake at the front that pulls caster out of the factory window, and the OE cam adjusters usually cannot pull it back. An offset upper arm like the SPC 86470, which adds +2° of caster, lets the truck re-align so it tracks straight and stops eating the inside tire edge.
Will SPC 86470 control arms fit a 4WD 1999-2006 Silverado or Tahoe?
Yes. The SPC 86470 is designed for 1999-2006 GM 1500 trucks and full-size SUVs in both 2WD and 4WD, including the Silverado 1500, Sierra 1500, Tahoe, Suburban, Yukon, Avalanche, and Escalade. It is the only arm in this guide that covers 4WD; always confirm your exact trim with our fitment data before ordering.
What is the difference between offset and tubular upper control arms?
An offset arm, like the forged SPC 86470, relocates the ball joint a fixed amount to add caster for a lifted or leveled truck while keeping a street-friendly, greasable joint. A tubular arm, like the RideTech StrongArms, is fabricated for a lowered ride height and uses Delrin bushings to sharpen handling. Offset arms correct alignment; tubular arms are built around a specific stance.
Do RideTech StrongArms fit a 4WD GMT800 truck?
No. RideTech StrongArms front control arms are built for 1999-2006 Silverado and Sierra 1500 2WD models only (including the 2007 Classic). A 4WD 1999-2006 GM truck should use the SPC 86470 offset upper arms instead, which support both drivetrains.
Do aftermarket upper control arms require an alignment?
Yes, always. Any upper control arm change alters front caster and camber, so a professional four-wheel alignment is required afterward to set the final numbers and protect your tires. With the SPC 86470 you install the arm, then use the factory alignment cams on the rack to dial it in.
What control arms fit a 2001-2006 Silverado 2500HD?
A 2001-2006 (through 2010) Silverado or Sierra 2500HD and 3500 uses the ICON 78550DJ tubular upper control arms with the Delta Joint, not the 1500 arms. The heavy-duty trucks run a different, heavier front end, so make sure you are buying the HD-specific arm for your 8-lug 3/4- or 1-ton truck.
Dial In Your GMT800 Front End
Shop SPC, RideTech, ICON and more control arms for your 1999-2006 Chevy Silverado, Sierra, Tahoe or Yukon at NLP Performance.
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