800-792-2714
RING & PINION GEAR SETS
For use with Ford Axles

Sierra Gear & Axle has a complete inventory of Ring & Pinion Gear Sets for use with Ford axles.

Our Ring and Pinion sets are reasonably priced and are the highest quality aftermarket gear sets available. Ring and Pinion Gear Sets from Sierra Gear are engineered and manufactured for easy setup, quiet operation and long life.

Complete your differential ratio change, rebuild, repair or overhaul with one of our Differential Repair and Installation Kits.

Not sure which ring and pinion gear ratio you want? Use our Differential Gear Ratio Calculator or call one of our technical experts for advice.

h

Application Chart:

Ring and Pinion Gear Sets for use with Ford Differentials

FORD AXLES – Ring and Pinion Gear Sets

7.5″ Ford Ring & Pinion Sierra Gear & Axle Part #
7.5″ FORD 3.08 Ratio R&P SG F7.5-308
7.5″ FORD 3.45 Ratio R&P SG F7.5-345
7.5″ FORD 3.73 Ratio R&P SG F7.5-373
7.5″ FORD 4.11 Ratio R&P SG F7.5-411
7.5″ FORD 4.56 Ratio R&P SG F7.5-456
8″ Ford Ring & Pinion Sierra Gear & Axle Part #
8″ FORD 3.00 Ratio R&P SG F8-300
8″ FORD 3.00 Ratio Premium R&P SGPF8-300
8″ FORD 3.25 Ratio R&P SG F8-325
8″ FORD 3.25 Ratio Premium R&P SGPF8-325
8″ FORD 3.40 Ratio R&P SG F8-340
8″ FORD 3.40 Ratio Premium R&P SGPF8-340
8″ FORD 3.55 Ratio R&P SG F8-355
8″ FORD 3.55 Ratio Premium R&P SGPF8-355
8″ FORD 3.80 Ratio R&P SG F8-380
8″ FORD 3.80 Ratio Premium R&P SGPF8-380
8″ FORD 4.11 Ratio R&P SG F8-411
8″ FORD 4.11 Ratio Premium R&P SGPF8-411
8″ FORD 4.62 Ratio R&P SG F8-462
8.8″ Ford Ring & Pinion Sierra Gear & Axle Part #
8.8″ FORD 3.08 Ratio R&P SG F8.8-308
8.8″ FORD 3.27 Ratio R&P SG F8.8-327
8.8″ FORD 3.31 Ratio R&P SG F8.8-331
8.8″ FORD 3.55 Ratio R&P SG F8.8-355
8.8″ FORD 3.55 Ratio Premium R&P SGPF8.8-355
8.8″ FORD 3.73 Ratio R&P SG F8.8-373
8.8″ FORD 3.73 Ratio Premium R&P SGPF8.8-373
8.8″ FORD 3.90 Ratio R&P SG F8.8-390
8.8″ FORD 4.10 Ratio R&P SG F8.8-411
8.8″ FORD 4.10 Ratio Premium R&P SGPF8.8-411
8.8″ FORD 4.30 Ratio R&P SG F8.8-430
8.8″ FORD 4.56 Ratio R&P SG F8.8-456
8.8″ FORD 4.56 Ratio Premium R&P SGPF8.8-456
8.8″ FORD 4.88 Ratio R&P SG F8.8-488
8.8″ FORD 5.13 Ratio R&P SG F8.8-513
8.8″ FORD 5.71 Ratio R&P SG F8.8-571
8.8″ FORD 3.31 Ratio Reverse R&P SG F8.8-3.31R
8.8″ FORD 3.55 Ratio Reverse R&P SG F8.8-3.55R
8.8″ FORD 3.73 Ratio Reverse R&P SG F8.8-3.73R
8.8″ FORD 4.11 Ratio Reverse R&P SG F8.8-4.11R
8.8″ FORD 4.56 Ratio Reverse R&P SG F8.8-4.56R
8.8″ FORD 4.88 Ratio Reverse R&P SG F8.8-4.88R
8.8″ FORD 5.13 Ratio Reverse R&P SG F8.8-5.13R
8.8″ FORD 5.29 Ratio Reverse R&P SG F8.8-5.29R
9″ Ford Ring & Pinion Sierra Gear & Axle Part #
9″ FORD 3.00 Ratio R&P SG F9-300
9″ FORD 3.00 Ratio Premium R&P SGPF9-300
9″ FORD 3.25 Ratio R&P SG F9-325
9″ FORD 3.25 Ratio Premium R&P SGPF9-325
9″ FORD 3.50 Ratio R&P SG F9-350
9″ FORD 3.50 Ratio Premium R&P SGPF9-350
9″ FORD 3.50 Ratio Pro R&P SG F9-350P
9″ FORD 3.64 Ratio R&P SG F9-364
9″ FORD 3.70 Ratio R&P SG F9-370
9″ FORD 3.70 Ratio Premium R&P SGPF9-370
9″ FORD 3.70 Ratio Pro R&P SG F9-370P
9″ FORD 3.70 Ratio Pro Big Pinion R&P SG F9-370BP
9″ FORD 3.75 Ratio Premium R&P SGPF9-370
9″ FORD 3.89 Ratio R&P SG F9-389
9″ FORD 3.89 Ratio Premium R&P SGPF9-389
9″ FORD 3.89 Ratio Pro R&P SG F9-389P
9″ FORD 3.89 Ratio Pro Big Pinion R&P SG F9-389BP
9″ FORD 4.11 Ratio R&P SG F9-411
9″ FORD 4.11 Ratio Premium R&P SGPF9-411
9″ FORD 4.11 Ratio Pro Big Pinion R&P SG F9-411BP
9″ FORD 4.11 Ratio R&P Pro Lightened SG F9-411PGL
9″ FORD 4.30 Ratio R&P SG F9-430
9″ FORD 4.30 Ratio Premium R&P SGPF9-430
9″ FORD 4.30 Ratio R&P PRO SG F9-429P
9″ FORD 4.30 Ratio R&P Pro Big Pinion SG F9-430BP
9″ FORD 4.33 Ratio R&P SG F9-433
9″ FORD 4.56 Ratio R&P SG F9-456
9″ FORD 4.56 Ratio Premium R&P SGPF9-456
9″ FORD 4.56 Ratio Pro R&P SG F9-456P
9″ FORD 4.56 Ratio Pro Big Pinion R&P SG F9-456BP
9″ FORD 4.56 Ratio R&P Pro Lightened SG F9-456PGL
9″ FORD 4.71 Ratio R&P SG F9-471
9″ FORD 4.71 Ratio Pro R&P SG F9-471P
9″ FORD 4.86 Ratio R&P SG F9-486
9″ FORD 4.86 Ratio Premium R&P SGPF9-486
9″ FORD 4.86 Ratio Pro Big Pinion R&P SG F9-486BP
9″ FORD 4.86 Ratio R&P Pro Lightened SG F9-486PGL
9″ FORD 5.00 Ratio R&P SG F9-500
9″ FORD 5.13 Ratio R&P SG F9-513
9″ FORD 5.13 Ratio Premium R&P SGPF9-513
9″ FORD 5.13 Pro Ratio R&P SG F9-514P
9″ FORD 5.29 Ratio R&P SG F9-529
9″ FORD 5.29 Ratio Premium R&P SGPF9-529
9″ FORD 5.29 Ratio Pro R&P SG F9-529P
9″ FORD 5.29 Ratio R&P Lightened SG F9-529L
9″ FORD 5.43 Ratio R&P SG F9-543
9″ FORD 5.43 Ratio Premium R&P SGPF9-543
9″ FORD 5.43 Ratio Pro R&P SG F9-543P
9″ FORD 5.43 Ratio R&P Lightened SG F9-543L
9″ FORD 5.67 Ratio R&P SG F9-567
9″ FORD 5.67 Ratio Premium R&P SGPF9-567
9″ FORD 5.67 Ratio Pro R&P SG F9-567P
9″ FORD 5.67 Ratio R&P Lightened SG F9-567L
9″ FORD 5.83 Ratio R&P SG F9-583
9″ FORD 5.83 Ratio Premium R&P SG F9-583P
9″ FORD 5.83 Ratio R&P Lightened SG F9-583L
9″ FORD 6.00 Ratio R&P SG F9-600
9″ FORD 6.00 Ratio Premium R&P SGPF9-600
9″ FORD 6.00 Ratio R&P Lightened SG F9-600L
9″ FORD 6.20 Ratio R&P SG F9-620
9″ FORD 6.20 Ratio Premium R&P SGPF9-620
9″ FORD 6.20 Ratio R&P Lightened SG F9-620L
9″ FORD 6.33 Ratio R&P SG F9-633
9″ FORD 6.33 Ratio Premium R&P SGPF9-633
9″ FORD 6.33 Ratio R&P Lightened SG F9-633L
9″ FORD 6.50 Ratio R&P SG F9-650
9″ FORD 6.50 Ratio Premium R&P SGPF9-650
9″ FORD 6.50 Ratio Pro R&P SG F9-650P
9″ FORD 6.50 Ratio R&P Lightened SG F9-650L
9″ FORD 6.66 Ratio R&P Lightened SG F9-666L
9″ FORD 6.83 Ratio R&P Lightened SG F9-683L
9″ FORD 7.00 Ratio R&P Lightened SG F9-700L
9″ FORD 7.33 Ratio R&P AX Lightened SG F9-733AX
9.75″ Ford Ring & Pinion Sierra Gear & Axle Part #
9.75″ FORD 3.08 Ratio R&P SG F9.75-308
9.75″ FORD 3.55 Ratio R&P SG F9.75-355
9.75″ FORD 3.73 Ratio R&P SG F9.75-373
9.75″ FORD 4.11 Ratio R&P METRIC SG F9.75-411
9.75″ FORD 4.30 Ratio R&P SG F9.75-430
9.75″ FORD 4.56 Ratio R&P METRIC SG F9.75-456
9.75″ FORD 4.88 Ratio R&P METRIC SG F9.75-488
9.75″ FORD 5.13 Ratio R&P METRIC SG F9.75-513
10.25″ Ford Ring & Pinion Sierra Gear & Axle Part #
10.25″ FORD 3.55 Ratio R&P SG F10.25-355
10.25″ FORD 3.55 Ratio R&P ’93 & Up, Long Pinion SG F10.25-355L
10.25″ FORD 3.73 Ratio R&P ’93 & Up, Long Pinion SG F10.25-373L
10.25″ FORD 4.10 Ratio R&P ’93 & Up, Long Pinion SG F10.25-411L
10.25″ FORD 4.30 Ratio R&P ’93 & Up, Long Pinion SG F10.25-430L
10.25″ FORD 4.56 Ratio R&P ’93 & Up, Long Pinion SG F10.25-456L
10.25″ FORD 4.89 Ratio R&P ’93 & Up, Long Pinion SG F10.25-489L
10.25″ FORD 5.13 Ratio R&P ’93 & Up, Long Pinion SG F10.25-513L
10.25″ FORD 5.38 Ratio R&P ’93 & Up, Long Pinion SG F10.25-538L

ISOTROPIC SUPERFINISHING

Any of our Ring & Pinion gears can be ordered “polished” using our in-house Isotropic Superfinishing process.

Simply put, Isotropic Superfinishing significantly reduces the surface imperfections that remain after a Ring and Pinion Gear set is manufactured. The result is a cooler, quieter and longer lasting gear set. At West Coast Differentials, the process we use is chemically accelerated vibratory surface finishing. This is technically not a polishing process, however the resulting finish does have a polished appearance. This process eliminates surface imperfections without removing material or changing the physical dimensions of the part.
This finishing process is widely used in racing applications where a conventional break-in process is not feasible, and where optimum performance is not an option.

BENEFITS of ISOTROPIC SUPERFINISHING

  • Reduced Friction
  • Reduced Contact Wear
  • Reduced Heat
  • Increased Durability
  • Improved Oil Retention
  • Lower Operating Temperature
  • Reduced Noise & Vibration
  • Increased Fuel Economy
  • Reduced Break-In Requirements
  • Reduced Maintenance

For lead time and pricing, please call Sierra Gear & Axle directly at (800) 792-2714

Find a Dealer

Find the application and ratio you need? Locate a Sierra Gear & Axle Distributor near you.

Gear Calculator

Doing a gear ratio change but not sure what you want? Try our Differential Gear Calculator.