MaxTrac 1" Rear Shackles – Part #412120
MaxTrac’s 412120 rear shackles provide a simple 1" adjustment for rear suspension—lowering on Ram 1500 or lifting on late-model GM 1500 trucks. Each pair is built from high-strength steel and finished in a grey powdercoat for long-term durability and clean fitment.
Product Details:
- Engine Type: Gas
- Adjustment Range (Rear): 1" lift or drop
- Kit Type: Rear Lift/Lower Shackles
- Part Number: 412120
- UPC: 738283444968
- Weight: 3 lbs
- Dimensions: 11" x 6" x 3"
- Material: Steel
- Finish: Grey powdercoat
- Color: Grey
- Country of Origin: China
- Sold As: Pair
- Tariff Code: 8708.80.6510
- Origin Criterion: B
- Unit of Measure: Inches
- Multiple Box Item: No
Important Notes:
- Includes self-tapping grease fittings
- Bushings are not pre-lubricated—use synthetic or lithium grease during install
- Not compatible with GM 1500 trucks equipped with monoleaf springs
- Functions as a 1" lift shackle on 2019–2025 GM 1500 models
- Functions as a 1" lowering shackle on 2002–2008 Ram 1500
- Wheels wider than 9" or with less than 4.5" backspacing are not recommended—use may void all manufacturer warranties
Fitment:
- Lowering Application:
- 2002 Dodge Ram 1500
- 2003 Dodge Ram 1500
- 2004 Dodge Ram 1500
- 2005 Dodge Ram 1500
- 2006 Dodge Ram 1500
- 2007 Dodge Ram 1500
- 2008 Dodge Ram 1500
- Lifting Application:
- 2019 Chevrolet Silverado 1500
- 2020 Chevrolet Silverado 1500
- 2021 Chevrolet Silverado 1500
- 2022 Chevrolet Silverado 1500
- 2023 Chevrolet Silverado 1500
- 2024 Chevrolet Silverado 1500
- 2025 Chevrolet Silverado 1500
- 2019 GMC Sierra 1500
- 2020 GMC Sierra 1500
- 2021 GMC Sierra 1500
- 2022 GMC Sierra 1500
- 2023 GMC Sierra 1500
- 2024 GMC Sierra 1500
- 2025 GMC Sierra 1500
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