| Number | Name | Brand | Fit |
|---|
| 3757R | Springs, rear (red) (2.9 rate) | Traxxas | direct |
| 4649R | Springs, red (for big bore shocks) (2.5 rate) | Traxxas | replaces |
| 4957 | Springs, red (for Ultra Shocks only) (2.5 rate) (f/r) | Traxxas | direct |
| 4957R | Springs, progressive rate (for Ultra-Shocks only) (f/r) | Traxxas | replaces |