Is There Rear Suspension Enhancement that Can fit 2020 Toyota 4Runner with 3" Lift
Updated 12/08/2025 | Published 11/24/2025
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Question:
Hi guys...have a 2020 4Runner with a 3 lift, have a question re rear suspension air bags and/or Sumo springs to help reduce sag when towing. Im guessing either system will need some kind of spacer to compensate for the extra lift, correct? Unloaded, I have 9 3/8 from the bottom of the frame to the top of the rear axle. Any help would be appreciated. Thanks Anthony
asked by: Anthony W
Expert Reply:
Hey Anthony, for your 2020 Toyota 4Runner I have a solution but there isn't a way to install air bags or SumoSprings so instead you'd need to go with the Timbren kit part # TTORSEQ and then 6 of the 1 inch spacers part # TA25723-90AD00 to take up the space created by the 3 inch lift on both sides of the vehicle.
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Timbren Rear Suspension Enhancement System
- Vehicle Suspension
- Towing/Load Leveling
- Bump Stops
- Suspension Only
- Extra Heavy Duty
- Rear Axle Suspension Enhancement
- Timbren
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Jameson C.
12/8/2025
Hey Anthony, how did things turn out with the Timbren kit and spacers on your 4Runner’s lifted rear suspension? It’d be great to hear if that setup helped reduce sag while towing. Your update could make it easier for others with similar lifts to find the right fit.