King 21-24 Ram 1500 TRX / 2025+ Ram 1500 RHO 3.5 IBP Rear Shocks with Compression Adjusters
Can I pick up my order or have it installed at your shop?
Can I pick up my order or have it installed at your shop?
Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at636-429-7020or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.
How do I know if this part fits my vehicle?
How do I know if this part fits my vehicle?
Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.
What if I need to return a product or it’s defective?
What if I need to return a product or it’s defective?
Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)
What's the lead time on custom or fabricated parts?
What's the lead time on custom or fabricated parts?
Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at636-429-7020and we’ll confirm current availability or estimated ship dates.
Description
Description
Take the suspension performance of your 2021-2024 Ram 1500 TRX or 2025+ Ram 1500 RHO to the next level with the King 3.5 IBP Rear Shocks. Designed as a 100% bolt-on upgrade, these premium shocks feature King's patented Internal Bypass (IBP) technology, delivering exceptional ride quality, outstanding bottom-out control, and fade-resistant performance for everything from high-speed desert runs to daily driving.
Why Choose the King 3.5 IBP Rear Shocks?
- Patented Internal Bypass Technology – Provides velocity-sensitive and position-sensitive damping with an integrated hydraulic bump stop for superior control.
- 100% Bolt-On Installation – Direct-fit design requires no fabrication or modifications.
- Quiet Operation – Internal bypass design eliminates the bypass tube clicking noises common with external bypass shocks.
- Maximum Cooling Capacity – Large 3.5-inch shock bodies and finned external reservoirs increase fluid volume for cooler, more consistent performance.
- Factory Tuned Performance – Developed through extensive dynamometer and real-world testing for optimal ride quality.
Kit Includes
- King 3.5 IBP Rear Shocks
- 3.5" Pure Race Series finned external reservoirs
- 3.0 Wide Range Compression Adjusters
- Shaft Guards
- Reservoir mounting hardware
Installation Highlights
These shocks install as a direct bolt-on replacement and feature King's all-new mid-port swivel reservoir mounting system, allowing 360° reservoir clocking for simplified installation and optimal hose routing.
Fits These Models
2021-2024 Ram 1500 TRX
2025+ Ram 1500 RHO
Specifications
- Part Number – 37701-101A
- Shock Body Diameter – 3.5"
- Shaft Diameter – 1"
- Shock Design – Monotube Internal Bypass (IBP)
- Reservoir – 3.5" OD Pure Race Series finned external reservoir
- Reservoir Material – Extruded 6061-T6 Aluminum
- Compression Adjuster – King 3.0 Wide Range Compression Adjuster
- Serviceability – Fully rebuildable, serviceable, and tunable
Key Features at a Glance
- Internal Hydraulic Bump Zone – Improves bottom-out control during aggressive suspension compression.
- Large Fluid Capacity – 3.5-inch shock bodies and finned reservoirs help reduce heat buildup.
- 360° Swivel Reservoir Mount – Simplifies installation and reservoir positioning.
- Wide Range Compression Adjustment – Fine-tune compression damping for changing terrain and driving styles.
- Pure Race Series Construction – Built using the same premium materials and manufacturing standards as King's race-proven shocks.
Notes
- Designed as a 100% bolt-on upgrade.
- Provides noise-free operation with no external bypass tube clicking.
- Compression adjusters come standard.
- Fully rebuildable, serviceable, and tunable for long-term performance.
- Engineered specifically for 2021-2024 Ram 1500 TRX and 2025+ Ram 1500 RHO applications.
SKU: 37701-101A
Questions? We’re Here to Help.
Have questions about upgrades for your Ram 1500 TRX or Ram 1500 RHO? Contact FASS Motorsports and we’ll get you dialed:
Phone: 636-429-7020
Email: info@fassmotorsports.com
