The UMI Performance leaf spring pin kit includes four custom extended length 4140 CrMo locating pins that provide a precise way to center the leaf spring when using lowering systems or pinion angle shims. Factory pins often lack the length needed to do the job. The pins use a 1/2 inch by 20 thread with a 4.25 inch total length, a 0.850 inch pin length, and a 3/4 inch pin diameter, and the kit includes Grade 8 hardware and a tough black zinc coating. UMI Performance manufactures this kit in the USA.
Specifications:
- Set of 4 custom extended length locating pins
- 4140 CrMo construction
- 1/2 in by 20 thread, 4.25 in total length, 0.850 in pin length, 3/4 in pin diameter
- Extended length head for use with pinion angle shims and lowering kits
- Includes Grade 8 hardware
- Black zinc coating
- Made in the USA
- Part number: 6577
Vehicle Applications:
- 2015 Ford F-150
- 2016 Ford F-150
- 2017 Ford F-150
- 2018 Ford F-150
- 2019 Ford F-150
- 2020 Ford F-150
- 2021 Ford F-150
- 2022 Ford F-150
- 2023 Ford F-150
- 2024 Ford F-150
FAQ
What vehicles does the UMI 6577 leaf spring pin kit fit?
It fits 2015 through 2024 Ford F-150 trucks.
Why use extended length leaf spring pins?
They provide a precise way to center the leaf spring when using lowering systems or pinion angle shims. Factory pins often do not have enough length for that job.
What are the dimensions and material of the pins?
The pins are made from 4140 CrMo with a 1/2 inch by 20 thread, a 4.25 inch total length, a 0.850 inch pin length, and a 3/4 inch pin diameter.
How many pins come in the kit?
The kit includes four pins along with Grade 8 hardware.
