Direct: (503) 987-4002
Main: (503) 987-4000
Description
xTransform your heavy Sprinter into a stable, predictable, and adventure-ready rig with the Stage 4.3 Suspension System—our best-selling kit for AWD and 4x4 vans. Engineered for Class B RVs, conversion vans, and passenger vans that run near or over GVWR, this system restores ride height, improves control, and makes every mile more comfortable.
Key Benefits
-
Falcon 3.3 Fast Adjust Shocks tuned by VC with 10 intuitive firmness settings
-
Restores lost ride height and reduces rear sag
-
Enhanced cornering stability and reduced body roll in crosswinds
-
More control over large impacts and washboard chatter
-
Improved handling feel on rough roads and broken pavement
-
Increased bottom-out resistance for fully loaded vans
-
100% bolt-on installation with no cutting or welding required
Built for Heavy-Duty Use
-
Adventure and conversion vans near or over GVWR
-
Class B RVs carrying gear, passengers, and tanks
-
Heavy passenger vans loaded for long trips
Why Stage 4.3 is the Go-To Kit
The heart of this system is the Falcon 3.3 Fast Adjust Shocks—a true 4-corner solution with a massive range of compression adjustment. With an oversized Fast Adjust knob, you can dial in comfort or firmness instantly, giving you more adaptability than any competitor’s smaller adjusters.
What Sets It Apart
-
Mini Leaf Spring Pack: Tuned to work with the factory rear leaf spring, restoring up to 1.25" of ride height for a leveled stance while retaining a quiet ride.
-
Progressive Foam Bump Buddy Jounce Bumpers: Replace harsh factory bump stops with a smoother, progressive spring curve. This reduces sway, improves impact absorption, and eliminates clunking or harsh bottom-outs.
Whether you’re navigating treacherous crosswinds on the highway or crawling off-pavement trails, the Stage 4.3 System gives your Sprinter unmatched stability, ride quality, and confidence.
Features
xThis Kit Features
- Falcon 3.3 Fast Adjust front shocks with mounting brackets
- Front Bump Buddies
- Falcon 3.3 Fast Adjust rear shocks with SP2
- Rear mini leaf spring pack
- Dust boots for all four shocks
- All necessary hardware and instructions for a simple installation
Fitment
xVehicle Fitment
- 2015–Present Mercedes Sprinter 2500 (4x4 & AWD)
⚠️ Important Fitment Notes
>> Complete Wheel and Tire Fitment Guide <<
>> Don’t know your van’s weight? Use the CAT Scale Locator <<
Recommended Wheel Size:
- 17" x 8.5", +45mm offset
Additional Notes:
- Wheels with 6.5" backspacing, or +52mm offset on an 8" wheel, require a minimum 14mm wheel spacer to prevent tire contact with auxiliary shocks at full steering angle. Example: Black Rhino Warlord, Method 701
- Vans equipped with the HD Rear AC Package require extra care when mounting front shocks — refrigerant lines may need to be slightly bent and re-secured.
- Not compatible with Sumo Spring Rebel series of springs (part numbers: SSR-327-47-2 and SSR-327-40-2) due to bracket interference with the shock body.
Instructions
xShipping & Return
xShipping
We ship nationwide and internationally. Most in-stock items leave our shop within 1–3 business days. Made-to-order and oversized parts may require additional lead time; any special timing will be noted on the product page.
Tracking & Delivery
- You'll receive a tracking email as soon as your order ships.
- We cannot ship to PO Boxes for oversized or freight items.
- Signature may be required for high-value shipments.
Freight & Oversize Items
- Large/oversized products (bumpers, racks, etc.) ship via LTL freight.
- Please inspect your delivery at arrival. Note any damage on the carrier’s paperwork and take photos before signing—this is required to file a claim.
- Residential freight includes curbside delivery; inside delivery/appointments may incur additional fees.
International Orders
- Duties, taxes, and import fees are the buyer’s responsibility and are not included at checkout.
- Some products may have export restrictions or carrier limits.
Order Changes & Cancellations
- Requests must be made within 24 hours of purchase when possible.
- Custom or built-to-order items may not be cancellable once production begins.
Returns & Exchanges
We want you stoked on your gear. Eligible items may be returned within 30 days of delivery for a refund or exchange.
Eligibility
- Items must be new, unused, uninstalled, and in original packaging with all hardware.
- Buyer is responsible for return shipping unless the return is due to our error or a confirmed defect.
- A restocking fee (typically 10–20%) may apply to non-defective returns to cover inspection, repackaging, and processing.
Non-Returnable Items
- Installed/used items, custom or made-to-order products, electrical/electronic components, clearance/“garage sale” items, and gift cards.
How to Start a Return
- Log in to your account and open the order, or contact us with your order number.
- We’ll issue return instructions and an RMA if approved. Returns without RMA may be refused.
- Pack securely; include all parts and paperwork. We recommend insured, trackable shipping.
Refunds
- Once received and inspected, approved refunds are issued to the original payment method within 3–5 business days.
- Original shipping charges are non-refundable (except in cases of our error or a confirmed defect).
Damaged, Defective, or Incorrect Items
- Please contact us within 7 days of delivery with photos of the product, packaging, and shipping label.
- For freight damage, ensure notes are made with the carrier at delivery and take photos before signing.
Warranty
Many products include a manufacturer warranty. We’re happy to help facilitate claims—reach out with your order number, photos, and a description of the issue.
Questions about shipping or returns? Get in touch—our team is here to help you get trail-ready.
- Choosing a selection results in a full page refresh.