The UMI Performance pinion shim kit dials in pinion angle on lowered 2015-2024 Ford F-150 trucks to reduce or eliminate lowering induced driveline vibration. Lowering the F-150 improves its stance, and correct driveline angle keeps it driving smoothly. The strong 6061-T6 aluminum shims feature a 2.5 degree taper and a natural finish, and they bolt in directly. The kit includes a pair of shims and is for use with the UMI flip kit. UMI Performance manufactures this kit in the USA.
Specifications:
- Pinion angle shim kit for lowered trucks
- For use with the UMI flip kit
- 6061-T6 aluminum with 2.5 degree taper
- Bare aluminum natural finish
- Includes a pair of shims
- Direct bolt-in
- Made in the USA
- Part number: 6574
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 6574 pinion shim kit fit?
It fits 2015 through 2024 Ford F-150 trucks and is intended for use with the UMI flip kit.
What problem does the pinion shim kit solve?
It corrects pinion angle on lowered trucks to reduce or eliminate lowering induced driveline vibration for a smoother drive.
What are the shims made from?
The shims are machined from strong 6061-T6 aluminum with a 2.5 degree taper and a natural bare aluminum finish. The kit includes a pair and bolts in directly.
How many shims come in the kit?
The kit includes a pair of shims.

