Can Firestone CoilRite Air Springs Be Used w/ Timbren Helper Springs on 2020 Toyota Land Cruiser  

Question:

Helpful Expert Reply:

You could add the Firestone # F4164 Coil-Rite Air Helper Springs to your existing setup, but I don't believe they'd do you a whole lot of good.

When the Timbren # TTORLC2 Aeon springs are installed, you'll have about 1/2 to 1-1/2 inches of preload between the spring and the and the top surface of the axle tube. Once the suspension compresses by that amount to take up the preload, the Timbren springs will come into play. In other words, the only time the # F4164 Coil-Rite springs would be effective is when the rear suspension isn't compressed.

If you frequently haul heavy loads in the cargo area of your Land Cruiser in addition to towing, I'd recommend removing the Timbren springs so you can take advantage of the adjustability of the Coil-Rites but if you primarily use the vehicle for towing, you'll be best served leaving it like it is.

I've linked to some product videos that you might find helpful.

expert reply by: Mike L

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