ReadyLiftPart 44-35425 · UPC 00194933406128
2025 Lift Kit for Trail Boss & Sierra AT4 4WD
$2,419.95MAP price
In stock: 4 available
Shipping weight: 243 lb.
- Chevrolet Silverado 1500 Custom Trail Boss and LT Trail Boss, 4WD, 2025
- GMC Sierra 1500 AT4, 4WD, 2025
- ZR2 and AT4X are not covered — they take separate part numbers
- Lift height, tire allowance and contents are not stated in the data
The Trail Fortress check
Will it fit your truck?
✓ Fits
2025 Chevrolet Silverado 1500 · 4WD
Custom Trail BossLT Trail Boss
2025 GMC Sierra 1500 · 4WD
AT4
About this part
2025 Lift Kit, fitment-checked
Both Trail Boss trims are named — Custom Trail Boss and LT Trail Boss — alongside the Sierra AT4, all four-wheel drive, all 2025.
Chevrolet sells the Trail Boss package on more than one trim, and this part covers both: Custom Trail Boss and LT Trail Boss on the 2025 Silverado 1500, with the GMC Sierra 1500 AT4 as the equivalent on the other side. Four-wheel drive is required. Note that the ZR2 and AT4X, which sit above these trims, are not on this fitment and take their own part numbers. Lift height, tire allowance and contents are not carried in the data for this kit.
Specifications
Specs
| Brand | ReadyLift |
| Part number | 44-35425 |
| UPC / GTIN | 00194933406128 |
| Shipping weight | 243 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
Why buy here
The fitment-first store
Manufacturer-listed exclusions shown. We publish what a part does not fit, before you buy, not after the return.
Sourced from the application data. Fitment on this page comes from the manufacturer’s application catalog, not a copied listing.
Real install docs. The actual step-by-step guide, linked right on the page.
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