H&R 60mm ID Single Race Spring Length 120mm Spring Rate 80 N/mm or 457 lbs/inch fits_2022-2025`GMC`Sierra 1500`Pro~2022-2025`GMC`Sierra 1500`SLE~2022-2025`GMC`Sierra 1500`SLT Pre-tuned for most users

Pre-tuned for most users

except for the factory expansion tank

Custom 300m axles

King Shocks 2019+ Chevy 1500 2

King Shocks 18in Dual Rate Springs 3

H&R 60mm ID Single Race Spring Length 120mm Spring Rate 80 N/mm or 457 lbs/inch fits_2022-2025`GMC`Sierra 1500`Pro~2022-2025`GMC`Sierra 1500`SLE~2022-2025`GMC`Sierra 1500`SLT Pre-tuned for most usersH&R 2. 50" I. D. Race Springs are made with extremely high tensile strength wire alloy which allows the use of a thinner wire. Manufactured using advanced materials and precision technology in Germany, H&R 2. 50" I. D. Race Springs are crafted from special lightweight (hf) 54SiCr6 spring steel. For any given spring rate, they are on average 15% lighter and have 10% more travel than competitors' springs. Main springs range from 6" to 18" in length and