SPC Performance - Alignment Parts & Tools

SPC (Specialty Products Company) has been setting the standard in wheel alignment technology since 1971. Originating in Denver with hand tools, SPC evolved into a global innovator based in Longmont, Colorado, delivering over 1,500 precision parts and alignment tools—from control arms and cam kits to EZ Cams™, shims, and xAxis™ rod ends—many of which are manufactured in-house under ISO‑9001 and IATF‑16949 standards.

SPC empowers both alignment shops and enthusiasts with practical, OE-matched solutions. Their EZ Cams™ add ±1.75° strut adjustability, while Builder Series arms and adjustable control arms serve lifted, lowered, and race-prepped vehicles. The company's commitment extends to deep resources—online & in-person training, alignment apps, and educational materials tailored for professionals .

With a proven record in drift (Papadakis Racing), USTCC, IMSA, and off-road, SPC parts are tested under extreme conditions and trusted for precise alignment, improved handling, and tire longevity

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SPC Performance ZINC SHIMS 3 x 6 x 4.0 deg. SPC Performance ZINC SHIMS 3 x 6 x 4.0 deg.
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SPC Performance ZINC SHIMS 3 x 6 x 4.0 deg.
These over-the-road heavy duty truck axle shims are a fast a nd accurate means to align front or rear axles of most popul ar tandem...
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Sale price$84.57 Regular price$100.07
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SPC Performance AL SHIMS 3X 6 X 4 deg.(6) SPC Performance AL SHIMS 3X 6 X 4 deg.(6)
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SPC Performance AL SHIMS 3X 6 X 4 deg.(6)
These economical over-the-road heavy duty truck axle shims a re our lowest cost option. With average compression strength and hardness these shims are available in...
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Sale price$52.16 Regular price$61.73
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SPC Performance ZINC SHIMS 3 x 6 x 3.5 deg. SPC Performance ZINC SHIMS 3 x 6 x 3.5 deg.
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SPC Performance ZINC SHIMS 3 x 6 x 3.5 deg.
These over-the-road heavy duty truck axle shims are a fast a nd accurate means to align front or rear axles of most popul ar tandem...
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Sale price$87.72 Regular price$103.82
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SPC Performance AL SHIMS 3X6X3.5 deg.(6) SPC Performance AL SHIMS 3X6X3.5 deg.(6)
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SPC Performance AL SHIMS 3X6X3.5 deg.(6)
These economical over-the-road heavy duty truck axle shims a re our lowest cost option. With average compression strength and hardness these shims are available in...
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Sale price$50.66 Regular price$59.96
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SPC Performance ZINC SHIMS 3 x 6 x 3.0 deg. SPC Performance ZINC SHIMS 3 x 6 x 3.0 deg.
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SPC Performance ZINC SHIMS 3 x 6 x 3.0 deg.
These over-the-road heavy duty truck axle shims are a fast a nd accurate means to align front or rear axles of most popul ar tandem...
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Sale price$81.39 Regular price$96.33
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SPC Performance AL SHIMS 3X6X3 deg.(6) SPC Performance AL SHIMS 3X6X3 deg.(6)
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SPC Performance AL SHIMS 3X6X3 deg.(6)
These economical over-the-road heavy duty truck axle shims a re our lowest cost option. With average compression strength and hardness these shims are available in...
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Sale price$49.00 Regular price$57.98
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SPC Performance ZINC SHIMS 3 x 6 x 2.5 deg. SPC Performance ZINC SHIMS 3 x 6 x 2.5 deg.
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SPC Performance ZINC SHIMS 3 x 6 x 2.5 deg.
These over-the-road heavy duty truck axle shims are a fast a nd accurate means to align front or rear axles of most popul ar tandem...
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Sale price$73.76 Regular price$87.29
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SPC Performance AL SHIMS 3X6X2.5 deg.(6) SPC Performance AL SHIMS 3X6X2.5 deg.(6)
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SPC Performance AL SHIMS 3X6X2.5 deg.(6)
These economical over-the-road heavy duty truck axle shims a re our lowest cost option. With average compression strength and hardness these shims are available in...
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Sale price$46.94 Regular price$55.56
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SPC Performance ZINC SHIMS 3 x 6 x 2.0 deg. SPC Performance ZINC SHIMS 3 x 6 x 2.0 deg.
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SPC Performance ZINC SHIMS 3 x 6 x 2.0 deg.
These over-the-road heavy duty truck axle shims are a fast a nd accurate means to align front or rear axles of most popul ar tandem...
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Sale price$71.15 Regular price$84.20
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SPC Performance AL SHIMS 3X6 X 2 deg.(6) SPC Performance AL SHIMS 3X6 X 2 deg.(6)
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SPC Performance AL SHIMS 3X6 X 2 deg.(6)
These economical over-the-road heavy duty truck axle shims a re our lowest cost option. With average compression strength and hardness these shims are available in...
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Sale price$46.20 Regular price$54.67
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SPC Performance ZINC SHIMS 3 x 6 x 1.5 deg. SPC Performance ZINC SHIMS 3 x 6 x 1.5 deg.
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SPC Performance ZINC SHIMS 3 x 6 x 1.5 deg.
These over-the-road heavy duty truck axle shims are a fast a nd accurate means to align front or rear axles of most popul ar tandem...
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Sale price$65.57 Regular price$77.60
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SPC Performance AL SHIMS 3X6X1.5 deg.(6) SPC Performance AL SHIMS 3X6X1.5 deg.(6)
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SPC Performance AL SHIMS 3X6X1.5 deg.(6)
These economical over-the-road heavy duty truck axle shims a re our lowest cost option. With average compression strength and hardness these shims are available in...
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Sale price$44.12 Regular price$52.22
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SPC Performance ZINC SHIMS 3 x 6 x 1.0 deg. SPC Performance ZINC SHIMS 3 x 6 x 1.0 deg.
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SPC Performance ZINC SHIMS 3 x 6 x 1.0 deg.
These over-the-road heavy duty truck axle shims are a fast a nd accurate means to align front or rear axles of most popul ar tandem...
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Sale price$59.79 Regular price$70.76
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SPC Performance AL SHIMS 3X6 X 1 deg.(6) SPC Performance AL SHIMS 3X6 X 1 deg.(6)
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SPC Performance AL SHIMS 3X6 X 1 deg.(6)
These economical over-the-road heavy duty truck axle shims a re our lowest cost option. With average compression strength and hardness these shims are available in...
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Sale price$42.48 Regular price$50.27
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SPC Performance AL SHIMS 3X6 X 0.5 deg.(6) SPC Performance AL SHIMS 3X6 X 0.5 deg.(6)
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SPC Performance AL SHIMS 3X6 X 0.5 deg.(6)
These economical over-the-road heavy duty truck axle shims a re our lowest cost option. With average compression strength and hardness these shims are available in...
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Sale price$40.79 Regular price$48.27
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SPC Performance ZINC SHIMS 3 x 6 x 0.5 deg. SPC Performance ZINC SHIMS 3 x 6 x 0.5 deg.
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SPC Performance ZINC SHIMS 3 x 6 x 0.5 deg.
These over-the-road heavy duty truck axle shims are a fast a nd accurate means to align front or rear axles of most popul ar tandem...
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Sale price$54.77 Regular price$64.82
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SPC Performance ZINC SHIMS 2.5x5x4.0 deg. SPC Performance ZINC SHIMS 2.5x5x4.0 deg.
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SPC Performance ZINC SHIMS 2.5x5x4.0 deg.
These over-the-road heavy duty truck axle shims are a fast a nd accurate means to align front or rear axles of most popul ar tandem...
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Sale price$67.43 Regular price$79.80
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SPC Performance AL SHIMS 2.5X5X4 deg. (6) SPC Performance AL SHIMS 2.5X5X4 deg. (6)
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SPC Performance AL SHIMS 2.5X5X4 deg. (6)
These economical over-the-road heavy duty truck axle shims a re our lowest cost option. With average compression strength and hardness these shims are available in...
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Sale price$44.69 Regular price$52.89
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SPC Performance ZINC SHIMS 2.5x5x3.5 deg. SPC Performance ZINC SHIMS 2.5x5x3.5 deg.
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SPC Performance ZINC SHIMS 2.5x5x3.5 deg.
These over-the-road heavy duty truck axle shims are a fast a nd accurate means to align front or rear axles of most popul ar tandem...
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Sale price$66.89 Regular price$79.15
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SPC Performance AL SHIMS 2.5X5X3.5 deg.(6) SPC Performance AL SHIMS 2.5X5X3.5 deg.(6)
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SPC Performance AL SHIMS 2.5X5X3.5 deg.(6)
These economical over-the-road heavy duty truck axle shims a re our lowest cost option. With average compression strength and hardness these shims are available in...
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Sale price$44.34 Regular price$52.47
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