UMI PERFORMANCE
UMI Performance 15-24 Ford F-150 3/4in Extended Length Leaf Spring Pin Kit
SKU: U01C 6577
Description
Part #: 6577
Factory pins are often too short to accommodate these components, which can result in an unsafe or sloppy fit. UMI's extended design solves this problem by offering the extra length needed while maintaining precise alignment. The locating pins ensure the leaf spring pack remains properly positioned on the axle pad, reducing the risk of movement under hard acceleration, braking, or cornering. This leads to a more secure installation, better traction, and improved confidence when pushing the vehicle on the street or track.
UMI's leaf spring pin kit includes four extended 4140 CrMo pins to precisely center leaf springs with lowering blocks or pinion shims. Factory pins are often too short. 100% Made in USA for strength and reliability.
Fitment
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Specifications
| Brand | UMI PERFORMANCE |
| Part Number | U01C 6577 |
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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