The 1999–2007 Silverado and Sierra sit with a slight nose-down rake from the factory. A leveling kit corrects this and gives the front end a more aggressive stance. There are three main approaches: spacer leveling, strut extension, and full lift kits.
SPACER LEVELING KITS (1.5"–2.5")
- Bolt on top of the front strut or torsion bar key — quick and cheap
- Gets the front level with the rear or slightly higher
- Good for fitting 33" tires without trimming
- No alignment adjustment usually needed at 2" or less
- Best value option if you just want level and maybe a slightly taller tire
STRUT EXTENSION LEVELING
- Replaces the upper strut mount — maintains proper strut geometry
- Better ride quality than stacking spacers above the strut
- Some kits include extended upper control arms for ideal geometry
FULL LIFT KITS (4"–6")
- Requires new upper control arms, longer shocks, and sometimes a differential drop
- Needed for 35" or larger tires
- More involved install — expect 4–8 hours in the shop
SHOCKS MATTER
- Leveling kits raise the front but your stock shocks are now over-extended
- Run Bilstein 5100 series shocks set to the leveled height — designed specifically for this
- DO NOT run stock shocks extended — they blow out quickly
TIRE SIZING WITH A LEVEL
- Stock: 265/65R18 (32.6")
- 2" level: 265/70R18 (33.6") or 285/65R18 (33.5") — may need minor trimming
- 2.5" level: 285/70R18 (34.8") — usually needs trimming in one spot