BDS Suspension FOX 2.5 Coilover Conversion Upgrade - 4.5 Inch Lift · Factory Series Chevy Silverado or GMC Sierra 2500HD/3500HD (01-10) 4WD · Diesel
Questions about fitment? Live chat or call 866-235-4715
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- Free shippingMost orders $500+
- 30-day returnsSee policy
- Warranty supportWe work with the maker
Questions about fitment?
Talk to a TRU specialist
We’ll help you verify fitment before you buy.
Veteran-owned · Austin, Texas · Mon–Fri 9:30a–11:00a & 1:00p–5:30p CT
Important notes before you order
- Torsion bar tool required to unload torsion bars
- Requires frame bracket modification
- Coilovers are preset for diesel, gas models will require preload adjustment (use #129600 spanner wrench)
- Gas models will require exhaust modification
TRU specialist notes
From the Trucks R Us fitment and install team, beyond the manufacturer's information.
- Plan for a professional wheel alignment after installing any lift or leveling kit.
- Going to bigger tires as well? Speedometer recalibration may be needed, and some tire and wheel combinations need trimming. Check the recommended wheels and tires, or ask us before you order.
Specifications
| Brand | BDS Suspension |
|---|---|
| Part number | BDS742FDSC |
| UPC / GTIN | 840416420777 |
| Lift Height | 4.5" |
| Adjustable Damping | Yes |
What's in the box
| Qty | Part | Description |
|---|---|---|
| 1 | BDS121252 | 01-10 HD UCA Kit |
| 1 | BDS121654 | 01-10 HD Coilover Mounting Kit |
| 1 | FOX88406187 | Kit: BDS 01-10 GM 2500/3500 HD Front Coilover, 2.5 Series, R/R 4.5" Lift, DSC |
Features
- FOX 2.5 factory series coilover with remote DSC adjustment
- Performance UCAs for increased strength and travel
- Bolt-on design requires no welding
- Compatible with BDS high clearance kits
- Eliminates rough riding torsion bars
Fitment
| Years | Vehicle |
|---|---|
| 2001-2002, 2004-2010 | Chevrolet Silverado 2500 HD (Diesel models only) |
| 2003 | Chevrolet Silverado 2500 HD: Base, LS, LT (Diesel models only) |
| 2007-2010 | Chevrolet Silverado 3500 HD (Diesel models only) |
| 2001-2010 | GMC Sierra 2500 HD (Diesel models only) |
| 2007-2010 | GMC Sierra 3500 HD (Diesel models only) |
Use the fit check above with your truck selected, or ask a specialist if your trim isn't listed.
Installation
Free install support from the Trucks R Us tech team, for you or your shop.
Overview
BDS offers complete coilover conversion upgrade kits for your Chevy Silverado and GMC Sierra 2500 / 3500 HD that make it effortless to convert your standard lifted suspension into coilovers. These kits are equipped with heavy-duty brackets and FOX 2.5 Coilovers to withstand any rugged use and abuse you subject them to, taking your vehicle's performance to new heights. These upgrade kits are compatible with existing BDS 4.5-inch lift kits, allowing for seamless integration.
BDS provides a bolt-on bracket for mounting the coilovers to the frame in the shock mount location. To reinforce the upper mount, a weld-in support gusset is utilized. Aside from replacing the factory torsion bars, the upper and lower control arms are also upgraded for enhanced strength and travel to accommodate the new coilovers. The tubular performance upper control arms, specially designed by BDS for this system, work seamlessly with the 2.5 coilovers. The new lower control arms, on the other hand, are built from high-strength steel, fully boxed, and internally gusseted to complement the uppers.
FOX 2.5 Coilovers
FOX 2.5 Factory DSC shocks offer next level performance for on-road comfort and off-road comfort capability. Tuned and ready to install right out of the box, these bolt-on 2.5-inch diameter shocks are built for abuse and packed with race-proven technology. They include a remote reservoir for additional fluid capacity to keep your shocks running cool so you can push the limits in the rough terrain. The DSC adjuster adds remarkable versatility and precise tuning with a simple twist of either two adjuster knobs, offering 10 separate low-speed and 12 high-speed compression levels, with a black anodized aluminum reservoir to increase cooling efficiency.
HD Upper Control Arms
Built for strength, performance and increased travel, these upper control arms are ready to bolt-in with most leveled/lifted trucks. They use 1.5" OD x .120-wall tubular construction with an indexed ball joint cup to correct the ball joint positioning allowing additional down travel and camber adjustment. At the frame mounting ends are durometer-specific rubber bushings for maintenance-free operation while at the other end a quality greaseable ball joints for smooth, quiet operation and superior durability. Arms are finished in a durable black powder coat with a billet aluminum dust cap ready for installation right out of the box.
Upgrade your 2001–2010 Chevy/GMC 2500–3500 HD with FOX 2.5 Factory Series coilovers. Includes heavy-duty UCAs.Questions
Will this fit my truck?
Select your truck at the top of the page and the fit check will confirm it. If your exact trim is not listed, call 866-235-4715 or live chat and a fitment specialist will check it before you order.
Do you help with installation?
Yes. Our technical team helps you or your shop with installation and troubleshooting after delivery, on top of the manufacturer’s support.
What if the part has a problem?
We work the warranty claim with the manufacturer on your behalf, within the manufacturer’s warranty policy.
Can I return it?
Most items can be returned within 30 days. See our return policy for details.
Do I need an alignment after installing?
Yes. Any lift or leveling kit changes suspension geometry, so get a professional alignment after installation.
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About BDS Suspension
BDS Suspension offers a wide range of premium suspension parts and components to complete the build of your high-performance truck or Jeep. All BDS products are made in the USA and powder coated for a superior ultra-premium appearance. On or... Shop all BDS Suspension