Ironman 4x4 Load Plus Helper Rear Spring Kit for 2.5" Width Leaf Springs
Questions about fitment? Live chat or call 866-235-4715
Couldn't load pickup availability
- 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
- Sold as a pair.
Specifications
| Brand | Ironman 4x4 |
|---|---|
| Part number | LP4 |
| U-Bolt | LP4-2 |
| Leaf Spring Width | 70mm |
| Length | 442mm |
| Mounting Kit | LP4-1 |
Features
- Maximize vehicle payload
- Improve safety and stability
- Reduce tire, brake, and suspension wear
- Reduce sway by up to 40%
- Reduce brake pitch by up to 20%
- Improve ride by up to 35%
- Reduce rear end sag by up to 20%
Fitment
| Years | Vehicle |
|---|---|
| 2015–2025 | Ford F-150 |
| 2019–2023 | RAM 1500 Classic |
| 2013–2024 | RAM 1500 |
| 2019–2024 | RAM 2500 |
| 1960–1989 | Toyota Land Cruiser |
Use the fit check above with your truck selected, or ask a specialist if your trim isn't listed.
Overview
Ironman 4x4 Load Plus Helper Springs are the perfect addition to any leaf sprung vehicle carrying variable loads. Load Plus provides a cost effective way to quickly and easily improve the load carrying characteristics of your vehicle. Perfect for trade vehicles, couriers or even the family vehicle, Load Plus allows users to progressively adjust the leaf springs of your vehicle to better manage heavy loads.
Load Plus is the most economical leaf spring upgrade available, providing the benefits of better load handling, whist enabling easy return to stock suspension characteristics when desired, and can be easily fitted at home with basic equipment.
Load Plus core value surrounds its ability to adjust your vehicles suspension characteristics up to its GVM. If you have an unladen vehicle, leave the load plus at a lower setting, add weight up to the vehicles GVM and progressively tension the Load Plus to maintain your vehicles driving characteristics and ride height by progressively stiffening the suspension.
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.
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About Ironman 4x4
Ironman 4x4 has been building off-road equipment since 1958, when spring maker Guenter Jacob founded the company in Melbourne, Australia. Designed and engineered in Australia and proven on some of the world's toughest terrain, Ironman 4x4 offers suspension — Nitro... Shop all Ironman 4x4