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We offer the best in customizedperformance parts
From daily driven to track racing, we produce high quality proven parts
that are engineering for the best performance on any level. -
Leaders in GMC Syclone & Typhooncustom suspension
Our custom tubular A-arms and 3 and 4-link kits paired with Viking shocks
are road and track tested and proven among the SyTy Community -
JSM offers a variety of in-housefabrication services
From CNC machining, tube bending and forming, plasma cutting and
so much more, JSM works with a large variety of metals and raw materials. -
JSM takes pride in our products and each isroad and track tested
Our research and development of parts ensures the best quality for your
daily driven to track prepped street rod.
Automotive

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Featured Products
The latest in our expanding product line.Solid Motor Mounts
Newly redesigned solid motor mounts replaces the stock rubber mount, no need to change frame pads. Mounts come standard powdercoated black.
Free Shipping in Lower 48
$80.00
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Sy/Ty Specific Front Coilover Shocks
Viking Warrior series double adjustable coil-over shocks specifically for the syclone and typhoon coil-over conversions. These can be used with stock A-Arms (with significant grinding of stock a arms), or with JSM Coilover A-arms designed and built in house. We custom machine the spring cups to accept 2.25" diameter springs.
$205.00
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Syclone/S10 Watts 3-Link
Rating:
Rated 5.00 out of 5
Bolt on watts style 3-link suspension for the GMC Syclone or 1st generation S10/Sonoma. Designed and tested in-house, our engineered kit replaces the factory leaf spring suspension. The JSM 3-link kit is properly set-up to reduce the effects of body roll and can be adjusted to improve traction, ride quality and braking.
Options include our 3-link kit with or without shocks & springs.
We pair our 3-link with Viking Warrior double adjustable shocks and springs for ultimate performance.
$1,750.00 – $2,350.00
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S10 Blazer/Typhoon 4-Link Kit
Bolt on 4-link suspension for the GMC Typhoon or 1st generation S10 Blazer/GMC Jimmy. Designed and tested in-house, our engineered kit replaces the factory leaf spring suspension. The JSM 4-link kit is properly set-up to reduce the effects of body roll and can be adjusted to improve traction, ride quality and braking.
Options include our 4-link kit with or without shocks & springs and 7 5/8" or 8.5" Rear Axle.
We pair our 4-link with Viking Warrior double adjustable shocks and springs for ultimate performance.
*Contact us for special pricing for shock upgrades, including magnetic ride capability.
$1,750.00 – $2,350.00
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ENGINEERING & FABRICATION OF INNOVATION
JS Machine & Fabrication
We offer services in custom design and fabrication. Contact us today to start your next project!