Product Summary

Universal Fit, 400 - 499 lbs. Spring Rate Range, Steel

  • Made using industry exclusive 360° polished wire
  • These coil over springs are engineered to provide the strength, durability and show stopping good looks you desire
  • Has a 2.63" inside diameter and a 400 lb. spring rate
  • Both ends are squared to ensure a proper fit
  • Made from heavy duty steel with a beautiful chrome finish

Key Specs

MFG. Part #28400-1CR
Spring Rate400 lbs.

Need To Know

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Return Policy


Whether you are building a purpose-built drag strip machine or a beautiful show car, Extreme Chrome coilover springs will provide the strength, durability and show stopping good looks you desire.

  • Industry exclusive 360° polished wire
  • High quality REAL chrome finish
  • Looks great from any angle - not just on the outside edge
  • 2-5/8" inside diameter

All AFCOILS® carry a lifetime warranty to remain within 2% of the original nominal free height.



AFCOILS® springs are manufactured using the finest spring material available. They are designed for extended life and consistent performance. They are guaranteed to do the job for which they are designed for as long as they are owned by the original purchaser.

AFCO will replace any AFCOILS® spring that ever exceeds the maximum allowable 2% loss of free height from original nominal specification. One way freight is included.

  1. Guarantee applies to original retail purchaser only.
  2. Damaged springs not covered by warranty.
  3. Spring must be returned to AFCO freight prepaid along with a copy of the original invoice.
  4. No other warranty, either expressed or implied, applies to AFCOILS® springs.
(Warranty not valid without invoice.)


MFG. Part #28400-1CR
Spring Rate400 lbs.
Spring Rate Range400 - 499 lbs.
Free Height8.00"
Inside Diameter2.63"
Material TypeSteel
Progressive Rate SpringNo
Coil Spring End (A)Square
Coil Spring End (B)Square
Sold in QuantityEach