Fast Shafts Ring & Pinion Ford 9in 5.50 F9-550
Part Number: FSHF9-550FAST SHAFTS
- SKU:
- FSHF9-550
- MPN:
- F9-550
- Condition:
- New
- Availability:
- Ships Same Business Day
- Weight:
- 19.80 LBS
Description
If you're running a 9-inch Ford rear end and need aggressive acceleration or highway cruising efficiency, your ring and pinion ratio is the most direct way to dial in your power delivery. The Fast Shafts 5.50 ratio delivers strong low-end grunt for launch while keeping RPMs reasonable at speed—a proven setup for street strip cars, drag applications, and high-performance street builds. This kit arrives as a complete, matched set, eliminating guesswork and ensuring proper gear mesh geometry out of the box.
- Ford 9-inch compatible
- 5.50 gear ratio
- 28-spline pinion
- Ring and pinion kit
- Complete, matched pair
- Ready to install
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