Suspension Upgrades for Cummins, Duramax & Power Stroke Trucks

Tombstone Diesel provides professional suspension upgrades and tuning for light-duty diesel trucks across Colorado and surrounding states. From heavy-duty work setups to high-performance off-road systems, we deliver unmatched ride quality, durability, and handling.

About Our Suspension Services

We install and tune premium suspension systems from Carli Suspension, Thuren Fabrication, and other trusted leaders. Whether you want increased off-road performance, improved towing stability, or a smoother daily ride, we’ll design and install the right setup for your needs.

Platforms We Service

• Ram Cummins – 5.9L & 6.7L (1994–Present)
• Chevy/GMC Duramax – LB7, LLY, LBZ, LMM, LML, L5P
• Ford Power Stroke – 7.3L, 6.0L, 6.4L, 6.7L

Popular Suspension Options

• Carli Suspension lift & leveling kits
• Thuren Fabrication long-arm systems
• High-performance shocks & coilovers
• Adjustable track bars & control arms
• Progressive leaf spring packs
• Heavy-duty steering upgrades

Why Choose Tombstone Diesel?

• Precision suspension installation and ride-height/geometry setup
• Authorized support for Carli and Thuren systems
• Experience with work-truck, tow, and off-road performance builds
• Platform expertise: Cummins, Duramax, Power Stroke

Service Areas

All suspension work is performed at our shop in Castle Rock, Colorado, serving: Colorado Springs, Parker, Denver, Broomfield, Fort Collins, Greeley, Sterling, and regional customers from Wyoming, New Mexico, Nebraska, and Kansas.

Request a Suspension Quote   Book an Install

Related Diesel Services

• Axle & Gear Upgrades
• Tire Mount, Balance & Alignment
• Engine & Transmission Repair
• Turbo & Manifold Upgrades