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Will Rear of Tacoma Still Sag with Timbren Rear Suspension Enhancement System

Question:

Im trying to decide whether or not to put these on my Tacoma. It looks like theres a gap at the top of the bag. How far down does the backend go before the resistance starts holding it up? I told with a weight distribution hitch. My other choice would be the Firestone airbags but these look much easier to install. Hitch weight of my trailers about 600 pounds.

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Expert Reply:

Jounce-style rear springs definitely offer the easier install (and maintenance thereafter) compared to air bag kits like the Firestone # F2410 you referenced, however they aren't the best option if your main concern is rear sag from a trailer's tongue weight. As you mentioned, there's still going to be a gap between the spring and contact point when the Timbren # TTORTUN4 is installed on your Tacoma and this is by design. If there wasn't a gap your empty ride would be really rough.

I can't say exactly how much gap there will be on your particular truck when mounted, but I can say that Timbren recommends having around a 1/2" to 1-1/2" between the spring and contact point when the truck is empty so this is likely where you will be.

As mentioned above, if rear sag is your main reason for adding a rear suspension enhancement system then the Firestone # F2410 is the better choice. The bags can be adjusted (5 psi to 100 psi) to fill the gap when needed while you're under load, or to reduce air pressure when you're riding empty to maintain a comfortable ride.

I have included the written install manual that you can reference as well.

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Chris R

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