GMC Sierra 3500 Leaf Springs - Rear - Cognito - Deaver Mini Leaf Pack - '11–'25. This progressive overload mini pack replaces the harsh bottom overload spring to improve ride and add adjustable rear lift.

Designed for 2011–2025 GM 8-lug Silverado/Sierra 2500/3500 HD (2WD/4WD), this Deaver-built mini pack is compatible with stock spring packs only and secures with the included new center pins. Expect better compliance unloaded and under payload thanks to the progressive spring rate. Rear lift is adjustable, with about 1–2.5 inches achieved by removing one or both spacer blocks and up to roughly 1–3 inches depending on configuration. Made in the USA and sold as a set, with an estimated 2-hour DIY install time.

Features

• Progressive overload design for improved ride quality
• Adjustable rear lift ~1–3 in. (1–2.5 in. via spacer block removal)
• Replaces the thick bottom overload spring
• Stock spring pack compatibility; new center pins included
• 2011–2025 GM 8-lug 2500/3500 HD, 2WD/4WD
• Made in the USA; sold as a set; approx. 2-hour DIY install

Have questions or need setup advice? Call our Austin, Texas shop at 512-982-9393 or our Los Angeles, California area shop at 562-981-6800. We offer professional installation and customization services at both locations.

Buying multiple items? Contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov