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Fabtech 3.5-inch ball joint UCA lift kit with Stealth shocks
A lift kit from Fabtech: 3.5 in front lift. Fabtech makes it for 1 truck generation, each with its own part number and conditions.
- 1 part number
- 1 truck generation
- 1 available to buy
The Fabtech 3.5-inch ball joint UCA lift kit with Stealth shocks in brief
Fabtech lists K1157M as a 3.5-inch ball joint upper control arm kit for the Chevy Silverado 2500HD and GMC Sierra 2500HD, 2020 to 2026. It is a full suspension lift with a 3.5 in front lift and shocks included, and the line name specifies Stealth shocks. The maker lists both 2WD and 4WD. Fabtech lists 35 in as the largest tire. The maker builds an additional 1 degree of caster into the upper control arms and sets the ball joint angle to allow full travel without bind. The maker's page does not give a separate rear lift figure. The maker names the Silverado 2500HD and Sierra 2500HD under model code K2500HD, matched here to the 2020-2026 Chevrolet Silverado 2500 HD. Two footnotes limit the fit: the factory wheels and tires cannot be used, and standard cab models are excluded.
Specifications from the maker
Which part number is yours
K1157M is the only part number on this line, so choosing comes down to checking your truck against the one listing. The application is Chevy Silverado 2500HD and GMC Sierra 2500HD, 2020 to 2026, with 2WD and 4WD both listed. The maker footnotes read: can not use OEM wheel and tire, and does not fit standard cab models. That means a regular cab truck is outside the listing, and you need aftermarket wheels and tires sized for the kit. On the listing, match the part number K1157M, the 2020 to 2026 range and the model code K2500HD. Fabtech lists 35 in as the largest tire, which is the ceiling for this kit. The caster note is useful for alignment planning: the kit adds 1 degree of caster, and the ball joint angle is set to allow full travel without bind. The maker does not publish a rear figure or an install time for this part.
Trucks it fits
-
2020-2026 Chevrolet Silverado 2500 HD
- Fits, K1157M
Fabtech K1157M fits 2WD and 4WD trucks and is listed for 2020-2026, Silverado 2500HD and Sierra 2500HD (model code K2500HD). You cannot use the factory wheel and tire with it, and it does not fit standard cab models.
Before you buy a lift kit
- Lift kit or leveling kit
- Leveling kit side effects on a pickup
- Largest tire after a lift or leveling kit
- Payload and GVWR after bed accessories
Questions owners ask
Does the Fabtech 3.5-inch kit fit a Silverado 2500HD regular cab?
No. The maker footnote says it does not fit standard cab models. K1157M is listed for the Silverado 2500HD and Sierra 2500HD, 2020 to 2026, with 2WD and 4WD both listed.
Can I keep my factory wheels and tires with K1157M?
No. The maker footnote says you can not use the OEM wheel and tire. Fabtech lists 35 in as the largest tire for this kit.
Is K1157M listed for both 2WD and 4WD?
Yes. The maker lists drive fitment as 2WD and 4WD for the Chevy Silverado 2500HD and GMC Sierra 2500HD, 2020 to 2026. Standard cab models are excluded by the maker footnote.
How much front lift does K1157M give?
The maker lists a 3.5 in front lift for K1157M. It gives no separate rear figure, so the 3.5 in number is the only height the listing publishes.
Does the Fabtech 3.5-inch kit change caster?
Per the maker, the kit has an additional 1 degree of caster built in, and the ball joint angle is set to allow full travel without bind.
Where these figures come from
1 maker documents
- Fabtech Motorsports, manufacturer product page (page text read with WebFetch; Fabtech public WooCommerce store API response hashed), read Oct 24, 2026