This is the Pro-Line PowerStroke Shock Spring Tuning Set and is intended for use with the Pro-Line PowerStroke shocks. Take your PowerStroke shocks to the next level with Pro-Line's Spring Set. Now you can adjust ride height and spring rates almost infinitely with these color coded dual-rate springs. Kits include six primary (short) and six secondary (long) high quality springs with color coded stripes to reference rates.

Features:

• Six Primary Springs (black/short)
• Six Secondary Springs (silver/long)
• Color coded stripes to identify rates
• Spring rate chart available showing all possible combination's and effective primary/secondary rates.

What’s included:

• Primary Springs:
• Super Soft 3.7 lb in (2)
• Medium 7.3 lb in (2)
• Firm 9.5 lb in (2)
  
• Secondary Springs:
• Super Soft 3.5 lb in (2)
• Soft 4.8 lb in (2)
• Firm 8.1 lb in (2)