Boss Air Suspension
Load Assist Kit for Chev GMC Silverado 1500 2020+ | Std Height ZR Models
Load Assist Kit for Chev GMC Silverado 1500 2020+ | Std Height ZR Models
SKU:LA-135-ZR
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This Boss Load Assist Kit is built for Chev/GMC Silverado 1500 2020+ factory height ZR models with the standard factory ZR rear lift. It adds adjustable rear airbag support while preserving the key fitment note for this ZR application.
Kit contents and details:
- 2 x BOSS Extreme Series Double Bellow Airbags
- 4 x brackets (2 upper and 2 lower)
- Mounting hardware
- Quality SAE J844 government approved airline
- Dual Schrader valves mounted in stainless panel
- Instructions for fitting
Airbag rating: Boss Extreme Series airbags are rated at 2600 lb or 1186 kg per side and have been government approved tested to over 750 psi.
An average dual cab ute will run around 15-45 psi depending on load. Inflate the airbags just enough to achieve a level ride height so the suspension components can share the extra load.

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