GM 4x4 Van Bump Stop Kit
The GM 4x4 van bump stop kit is crucial for optimizing GM IFS system performance in your 4x4 van conversion. We offer three options: 0-3" lift torsion bar, 5-6" torsion bar, and a 5-6" coilover option with a rearward seat and bolt-in strike pad.
Bump stops on GM IFS vehicles serve two key purposes. Firstly, they act as a secondary damper for the torsion bar design, countering its natural "pogo" effect for improved ride quality.
Secondly, they prevent harsh bottoming out and tire-body contact which is especially important due to GM vehicles' close-fitting fenders. (This is the same reason you'll see significant lift requirements on GM pickups to increase tire size just slightly.)
Timberline GM 4x4 conversions require replacing the lower control arms with a Silverado-style arm. This entails re-articulating/positioning the bump stop, done as one of the final steps after leveling, settling, and aligning the vehicle. This ensures precise and effective functionality.
Coilover vans also require bump stops to prevent tire-fender contact. Our Coilover design excels at absorbing bumps and washboard but requires limiters for additional suspension travel both upward and downward.
Van Side - 2003-2023 Chevrolet Express 2500/3500/4500 series vans. May work with other models.
Standard hand tools, wire brush grinder and/or solvent cleaner, welding required.
Bump stop mounting brackets, bump stops, hardware. Striker plate included on coilover variant. (Kit includes driver and passenger sides both)
3/16" material CNC cut A36 mild steel, powder-coat, OEM style bump bolt in bump stop, weld-areas stripped of powdercoat.
Tips / Skill Level:
1-10 (10 being most difficult) Level 3 (Requires welding)
This product may work with other model vehicles.
Shipping, Fulfillment, Taxes, Quality, and Returns
- Shipping: Our components are carefully wrapped & packaged and shipped via 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.
- 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 a 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 installation. Fabricated components are generally hand-built here in Colorado by seasoned professionals. Replacement or aftermarket parts are only offered in high-grade options.
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 within 30 days of receipt. If you decide to return any components that didn't apply to your build or you changed your mind about, a shipping +15 % restocking fee will be deducted from the refund.