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Notice! Fulfillment staff will be off site 9/30-10/6. Orders will be processed the following week of 10/9/23. Please excuse any delays.
Notice! Fulfillment staff will be off site 9/30-10/6. Orders will be processed the following week of 10/9/23. Please excuse any delays.

GM 4x4 van Sway Bar Kit


The mounting surfaces for the sway bar links differ from vans to trucks on the lower control arms which are changed during the 4x4 conversion. Additionally, tie rod clearances become tighter during your GM 2500/3500 series 4x4 conversion.  

The lower control arms are often cast, which makes them difficult to weld to, and we've seen the welds on other manufacturers' units crack time and time again. 

Our solution to the spacing is a bolt-in design, which pulls the sway bar forward just slightly and uses 1/2" thick bolt-on adapter plates that allow you to adjust the sway bar link mounting just right. This solution makes for easy installation, future service and there is a bit of fine-tuning adjustability just by the design. 

Fitment Designed for: 

Van Side - 2003-2022 Chevrolet Express 2500/3500/4500 series. 

Truck Side - 2007.5-2010 Silverado/Sierra K2500/3500 lower control arms. 

May work for other applications. 

Tools Required:

Standard hand tools, easy install with pneumatic impact, threadlocker for hex caps advised


Hex cap extension bolts to replace OEM sway bar bracket bolts, sway bar link adapter plates + hardware, sway bar adapter boxes

Construction Notes:

1/2", 1/8" material CNC cut A36 mild steel, powder-coat, Grade 10 Hardware

Tips / Skill Level:

1-10 (10 being most difficult) Level 1

This product may work with other model vehicles. 

Torque spec on hex cap bolts, 37ft-lbs, sway bar tap bolts 125ft-lbs, sway bar links should be tightened just until rubber bushings compress slightly.  

Other Pertinent Part Numbers - RK621356, RK621355 control arms

Shipping, Fulfillment, Taxes, Quality, and Returns
  • Shipping: Our components are carefully wrapped and packaged and ship UPS, USPS, or FedEx, depending on what is available. If you require a particular carrier, please contact us ahead of your purchase.  Customers in Colorado may arrange for in-person pickup within 1-2 business days of purchase taking noted lead times into consideration. 
  • Shipping/Fulfillment time for components: We typically ship within 1-2 business days of your order and we carefully monitor our inventory. In the event that we are unable to meet that timeframe, we will contact you and arrange either a full refund or a timeframe for fulfillment agreeable to the customer. 
  • Taxes: Colorado residents must pay sales tax of 7.5%, no sales tax is collected on out-of-state shipments currently. 
  • Quality and Returns: We are consistently complimented on the quality of our products and the ease of install. Components are hand-built here almost exclusively in Colorado by seasoned professionals who are fanatics about design and execution. If you are in any way disappointed in the components we will issue a full refund less the cost of shipping when the product is returned. If you decide to return any components that didn't apply to your build or you changed your mind about, shipping and a 15% restocking fee will be deducted from the purchase refund.