IRONMAN 4X4 IM2.5
IM2.5 Lift Kits
Suspension Built For Performance
Fits 2003-2009 Toyota 4Runner, 2007-2009 Toyota FJ Cruiser and 2003-2009 Lexus GX470 applications.
The IM2.5 Monotube Suspension delivers an exceptional upgrade in comfort, control and capability. Advanced monotube technology, precision valving and superior heat management help keep the vehicle composed on pavement, forestry roads and demanding trail conditions.
THE CAP-IT TAKE
A Serious Suspension Upgrade Without Unnecessary Complexity
Most adventure vehicles still spend plenty of time on pavement. That means ride quality, steering confidence and everyday control matter just as much as capability once the road gets rough.
The IM2.5 system is built for that balance. Its large-body monotube dampers increase oil volume and heat-management capacity, while application-specific valving helps deliver predictable control without external reservoirs or driver-adjustable damping.
For a 4Runner, FJ Cruiser or GX470 that needs to drive well every day and work harder on weekends, this is exactly the kind of suspension package we like.
Why IM2.5 Is Different
Large-Body Monotube Design
The 2.5-inch monotube platform provides increased oil capacity and strong heat-management capability for consistent damping over long distances and rough terrain.
Precision Valving
Vehicle-specific damping is designed to improve stability, body control and driver confidence without relying on external adjustment knobs.
Pre-Assembled Front Coilovers
The front IM2.5 coil-over strut assemblies arrive pre-built, simplifying the system and ensuring the front suspension is matched as part of the complete kit.
Matched Front + Rear Package
Front coilovers, rear IM2.5 shocks, rear coils and required fitment hardware are selected as one complete suspension system.
LIMITED-QUANTITY IM2.5 SPECIAL
SAVE $1,500
Regular $3,960 CAD. Sale $2,460 CAD.
Medium and Heavy Load are both included at the same sale price. This offer is limited to the remaining IM2.5 front suspension allocation. Please allow up to 2 weeks for order processing before shipment.
SEE IM2.5 IN ACTION
IRONMAN 4X4 IM2.5 Monotube Shock Absorbers
See why Ironman 4x4 developed the IM2.5 for drivers who prioritize all-day ride comfort and plush off-road performance. Its single-wall monotube construction increases internal capacity for a massive 2.5-inch piston, giving Ironman greater scope to tune the shock for refined, controlled performance.
Choose the Right Load Rating
MEDIUM LOAD
Best for Typical Accessory Loads
Rear spring: TOY056B-B
2" rear lift • 0-660 lb additional constant payload. A strong all-around choice for vehicles with normal permanent accessory weight and everyday adventure use.
HEAVY LOAD
Built for More Constant Rear Weight
Rear spring: TOY056C-B
2" rear lift • 660 lb-GVM additional constant payload. Choose Heavy Load when the vehicle carries greater permanent rear accessory weight. Base the choice on equipment that normally stays installed, not occasional cargo.
Unsure which spring rate is right? Contact Cap-it before ordering and we can help match the kit to your build.
Exactly What's Included
This is the Ironman Stage 1 suspension configuration. The selected load rating changes the rear coil spring set, while the front coilovers, rear IM2.5 shocks and fitment hardware remain the same.
Not included: Upper control arms, adjustable panhard bar, extended sway-bar links, lower trailing arms and rear airbag-delete components. These are optional or application-specific upgrades sold separately where required.
| Component | Part Number | Qty | Medium | Heavy |
|---|---|---|---|---|
| IM2.5 Front Coil-Over Strut Assembly | 71-057-710 | 2 | Included | Included |
| IM2.5 Rear Shock Absorber | 72-057-682 | 2 | Included | Included |
| Rear Coil Spring Set | TOY056B-B / TOY056C-B | 1 set | TOY056B-B | TOY056C-B |
| Front Sway Bar Spacer Kit | 09-100-012 | 1 | Included | Included |
| Rear Bump Stop Spacer Kit | 09-100-002 | 1 | Included | Included |
REAR AIR SUSPENSION
Vehicles equipped with factory rear air suspension may require a rear airbag delete kit. The delete kit is sold separately. Contact Cap-it before ordering if your vehicle has rear air suspension.
VEHICLE FITMENT
Built for These Applications
- Toyota 4Runner: 2003-2009
- Toyota FJ Cruiser: 2007-2009
- Lexus GX470: 2003-2009, applicable suspension configurations
Vehicles equipped with KDSS, rear air suspension or other non-standard suspension equipment should be confirmed before ordering.
+Specifications & IM2.5 Technology
- 2.5-inch large-body monotube damper platform
- Vehicle-specific precision valving
- Pre-assembled front coil-over strut assemblies
- Matched IM2.5 rear shock absorbers
- Choice of Medium or Heavy rear coil spring set
- Required sway bar and bump stop spacer hardware included
- Complete front and rear suspension package
+Ordering, Availability & Shipping
This is a limited-quantity suspension package assembled specifically to complete each order. Please allow up to 2 weeks for order processing before shipment.
Medium and Heavy Load configurations share the same limited front IM2.5 allocation. Availability ends when the remaining allocation is sold.
+Frequently Asked Questions
Is this a complete suspension kit?
Yes. It includes two front IM2.5 coil-over strut assemblies, two rear IM2.5 shocks, the selected rear coil spring set and the required spacer hardware.
Are Stage 2, 3 or 4 components included?
No. This is the Ironman Stage 1 configuration. Upper control arms, adjustable panhard bar, extended sway-bar links and lower trailing arms are sold separately.
Does this include a rear airbag delete kit?
No. Vehicles with factory rear air suspension may require a rear airbag delete kit, which is sold separately.
What is the difference between Medium and Heavy Load?
The front coilovers, rear shocks and hardware are the same. Heavy Load substitutes the heavier rear coil spring set for vehicles carrying more permanent rear weight.
Why can processing take up to 2 weeks?
The complete package is assembled from multiple component inventories specifically for each order.
Is professional installation recommended?
Yes. Suspension installation should be completed by a qualified installer and followed by a professional wheel alignment.
Can Cap-it help choose the correct load rating?
Yes. Contact your nearest Cap-it location and we can help select the appropriate configuration based on the permanent accessories installed on your vehicle.
WHY BUY IRONMAN 4X4 FROM CAP-IT?
Build the Suspension Around the Vehicle You Actually Drive.
Cap-it has specialized in truck accessories, suspension and adventure equipment since 1977. We understand that suspension has to work with the complete vehicle, including the accessories and weight you carry every day.
Choose your IM2.5 load rating, save $1,500 while this limited allocation lasts, and contact Cap-it if you want help confirming the right setup before ordering.