Alignment Shim Multi-Pack

What Are Alignment Shim Multi-Packs?

Alignment shim multi-packs are assortments of precisely machined spacers used to fine-tune a vehicle's suspension geometry — specifically camber, caster, and toe angles. By inserting one or more shims between suspension mounting points or at the axle hub, technicians can bring a vehicle's wheel angles back to factory specification or dial in a custom alignment setting without replacing entire suspension components.

These thin, tapered or flat spacers are deceptively simple in appearance but play a critical role in how a vehicle handles, steers, and wears its tires. Even a small deviation in camber or toe can accelerate tire wear on the inner or outer edge, cause the vehicle to pull to one side, or reduce overall steering precision. Alignment shim multi-packs give technicians and serious DIYers the flexibility to address a wide range of correction scenarios with a single purchase.

When Do You Need Alignment Shims?

Shims become necessary in several common situations. Vehicles that have been lowered or lifted often experience changes in suspension geometry that push alignment angles outside of their adjustable range. Similarly, wear in control arm bushings, ball joints, or other chassis components can gradually shift alignment settings. On certain vehicles — particularly those with beam-style rear axles or fixed-hub designs — alignment shims may be the only practical way to correct camber or toe at the rear without expensive custom fabrication.

• Lowered or lifted vehicles that have moved outside the factory adjustment range
• Rear suspensions with limited or no built-in adjustability
• Post-repair corrections after replacing worn chassis or suspension components
• Routine alignment service on vehicles where shims are part of the OE setup
• Custom alignment tuning for performance driving or track use

What to Look for in an Alignment Shim Multi-Pack

When shopping for an alignment shim multi-pack, consider the range of thickness sizes included — a quality assortment typically spans from very thin (1/64 in.) to thicker increments (up to 1/8 in.) to cover a broad spectrum of correction needs. Material matters too: look for shims made from corrosion-resistant or zinc-plated steel that can withstand under-vehicle exposure to moisture and road grime without degrading. Organized packaging, such as a labeled tray or storage case, helps speed up the job by making it easy to grab the right size at a glance.

Top Brands in Alignment Shim Multi-Packs

Moog Chassis Parts is one of the most respected names in alignment components. Their full-contact rear shims can be used to set camber, toe, or both simultaneously, and are manufactured from non-corrosive materials accurate to one-tenth of a degree — a level of precision that professional technicians depend on. Moog has long been recognized as a "Problem Solver" brand, engineering alignment parts that simplify installation while restoring factory-level performance.

SPC Performance brings a performance-focused approach to the alignment shim category. Known for their innovation in adjustable suspension components, SPC designs their products to address the alignment challenges that come with modified, lowered, and high-performance vehicles — making their shims a go-to choice for enthusiasts who need solutions beyond what stock components can provide.