I recently purchased an 05 4Runner Sport V-8 4x4. I love this SUV, and its the best vehicle i owned. I have one question, i tow a 18ft toy hauler, and when it loaded the rear sags, alot. With the weight dist hitch, it help a little. I looked around for any air bag systems, but they are all for 02 or older. Are the rear springs that much different? is it possible to retro fit an older kit to fit, or does any one know of a company that makes them?

Thanks,
David V

 

rear springs are completely different but you should be able to find some vendor that does air bag suspension to implement one into the 4th gen.

good luck