Overview
The Bilstein B12 Special 36-281824 is a rear suspension kit for the Toyota 4Runner, the Lexus GX460 and the Toyota FJ Cruiser. The B12 Special kits are designed to change ride height, using several different technologies to reach the height suited to each application.
This is a rear-position part. Confirm the amount of lift or lowering, the shock type and the spring rate for your vehicle before ordering.
Key features
- Rear suspension kit
- Designed to alter ride height
- Uses several technologies to reach the target height
- Covers three vehicle lines
- Direct fit to the listed trims
Rear ride height basics
Rear ride height is set by the springs, the shocks and the way the axle sits under the body. A rear kit that changes height alters the angle of the driveshaft and the position of the rear axle, which can show up as vibration or uneven tire wear if the change is large. Matching the kit to your load and driving style is part of getting a comfortable result.
After installation, check the rear suspension for clearance at full compression, including the brake lines, the fuel lines and the bump stops. Watch the rear tire wear during the first weeks of driving and note any change in ride or noise. Plan on an alignment check if handling or tire wear changes.
- Check driveshaft angle and vibration after install
- Look for rear brake line and fuel line clearance
- Recheck bump stop contact at full compression
- Watch rear tire wear during the first weeks
Specifications
| Brand | Bilstein |
|---|---|
| Part number | BIL36-281824 |
| Position | Rear |
| Fitment | Direct fit |
Vehicle fitment
The kit fits the 2010–2022 Lexus GX460 in Base and Premium trims, the 2003–2022 Toyota 4Runner in Limited, SR5, SR5 Premium, Sport, TRD Off-Road, TRD Off-Road Premium, TRD Pro, Trail and Venture trims, and the 2007–2014 Toyota FJ Cruiser in Base, TRD Special Edition and Trail Teams Special Edition trims.
Vehicles outside these three lines are not on the list. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Installation requires checking the rear suspension geometry after the kit is fitted, since it changes rear ride height.









