Home » Jeep Lift Kits & Suspension » Lift Kits » Spring Lift Kits » Quadratec Exclusive Maximum Duty 3.5” Coil Spring Suspension Lift Kit with Shocks for 97-06 Wrangler TJ & Unlimited

Quadratec® Maximum Duty 3.5” Coil Spring Suspension Lift Kit with Shocks for 97-06 Wrangler TJ & Unlimited

The Quadratec® Difference
Starting at
Quadratec’s Maximum Duty Coil Spring Suspension Kits add an additional 3-1/2” of suspension and an excellent choice for fitting up to 33” tall tires. These premium kits replace your four factory length coil springs with our longer Maximum Duty Coils. Our coil springs begin with premium steel alloy material to ensure consistency and are preset to add memory and eliminate settling. Each spring CNC wound and then load tested to certify consistency through the spring’s complete travel cycle. Our progressive rate coil spring are engineered to be within 10% of the factory rates with all the vigorous off-road handling capabilities while maintaining the smooth factory-like characteristics. Coil springs are easy to install with simple hand tools and do not require a spring compressor. The 3-1/2” Coil Spring Lift Kits include four Quadratec exclusive shock absorbers to help maximize both the street performance and off road capabilities. These advanced kits are available with your choice of Hydro 7.0 or Nitro 8.0 shock absorbers and come complete with all the necessary hardware and brackets to retain proper vehicle alignment. Fully detailed installation instructions included.
Installation Notes
Installation Difficulty:
Level 3Advanced
Parts Included

Front Coil Springs
Rear Coil Springs
Front Bump Stop Extensions
Rear Bump Stop Extensions
Front Shock Absorbers with Boots
Rear Shock Absorbers with Boots
Rear Track Bar Re-alignment Bracket
Front Sway Bar Links
Rear Sway Bar Links
Front Lower Control Arms
Rear Lower Control Arms
Transfer Case Lowering Kit

Limited Lifetime Warranty
  • Lift Height (Lift Kits): 3.5, 3.50
  • Shocks Included: With Shocks
  • Max Tire Size: 33
  • Lift Height Range: 3 - 4.5 inch
  • Included Parts: Bump Stop Extensions, Front Lower Control Arms, Rear Lower Control Arms, Rear Track Bar Bracket, Sway Bar Endlinks, Transfer Case Lowering Kit
  • Features: Short Arm
  • Jeep Wrangler (TJ)

  • 2006 Jeep Wrangler (TJ)
  • 2005 Jeep Wrangler (TJ)
  • 2004 Jeep Wrangler (TJ)
  • 2003 Jeep Wrangler (TJ)
  • 2002 Jeep Wrangler (TJ)
  • 2001 Jeep Wrangler (TJ)
  • 2000 Jeep Wrangler (TJ)
  • 1999 Jeep Wrangler (TJ)
  • 1998 Jeep Wrangler (TJ)
  • 1997 Jeep Wrangler (TJ)
  • Jeep Wrangler Unlimited (TJ)

  • 2006 Jeep Wrangler Unlimited (TJ)
  • 2005 Jeep Wrangler Unlimited (TJ)
  • 2004 Jeep Wrangler Unlimited (TJ)
Part NumberCatalog #OptionPrice
16400 003316400.0033With Hydro 7.0 Shocks$574.00
16400 013316400.0133With Nitro 8.0 Shocks$594.00
Share Your Thoughts
Review Summary
Shared Media