Stack Guide | Penske (Flat) Quarter Midget Springs Usable Stroke : 112mm |

Usable Stroke : 112mm | 4

Round Wire | Linear Rate

Spring Rate : 575lbs/inch

Length : 4inch

Built for Asphalt

Stack Guide | Penske (Flat) Quarter Midget Springs Usable Stroke : 112mm |Explore the Swift Stack Guide and Stack Guide adapters engineered to eliminate tilt from a stacked spring setup and any chances of shock damage. Our Stack Guides are created out of a heat resistant self lubricating composite that's designed to remove any tilt from a stacked spring setup. Results have shown a smoother transition of the intended spring rate, as well as eliminates any chance of shock damage. Highly recommended for anyone using a dual