Ring and Pinion Gear Sets | Ford

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

Ford Differential Application Chart:

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 3.25 Ratio R&P SG F8-325
8″ FORD 3.40 Ratio R&P SG F8-340
8″ FORD 3.55 Ratio R&P SG F8-355
8″ FORD 3.80 Ratio R&P SG F8-380
8″ FORD 4.11 Ratio R&P SG F8-411
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 REVERSE SG F8.8-331R
8.8″ FORD 3.55 Ratio R&P SG F8.8-355
8.8″ FORD 3.55 Ratio R&P REVERSE SG F8.8-355R
8.8″ FORD 3.73 Ratio R&P SG F8.8-373
8.8″ FORD 3.73 Ratio R&P REVERSE SG F8.8-373R
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 R&P REVERSE SG F8.8-411R
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 R&P REVERSE SG F8.8-456R
8.8″ FORD 4.88 Ratio R&P SG F8.8-488
8.8″ FORD 4.88 Ratio R&P REVERSE SG F8.8-488R
8.8″ FORD 5.14 Ratio R&P SG F8.8-513
8.8″ FORD 5.29 Ratio R&P REVERSE SG F8.8-529R
8.8″ FORD 5.71 Ratio R&P SG F8.8-571
8.8″ FORD 6.14 Ratio R&P SG F8.8-614
9″ Ford Ring & Pinion Sierra Gear & Axle Part #
9″ FORD 3.00 Ratio R&P SG F9-300
9″ FORD 3.25 Ratio R&P SG F9-325
9″ FORD 3.50 Ratio R&P SG F9-350
9″ FORD 3.55 Ratio R&P SG F9-355
9″ FORD 3.70 Ratio R&P SG F9-370
9″ FORD 3.89 Ratio R&P SG F9-389
9″ FORD 4.11 Ratio R&P SG F9-411
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 R&P PRO LIGHTENED SG F9-430PGL
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 R&P PRO LIGHTENED SG F9-456PGL
9″ FORD 4.71 Ratio R&P SG F9-471
9″ FORD 4.86 Ratio R&P SG F9-486
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 5.29 Ratio R&P SG F9-529
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 R&P AX LIGHTENED SG F9-543AX
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 R&P LIGHTENED SG F9-567L
9″ FORD 5.83 Ratio R&P SG F9-583
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 R&P LIGHTENED SG F9-600L
9″ FORD 6.20 Ratio R&P SG F9-620
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 R&P AX LIGHTENED SG F9-633AX
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 R&P AX LIGHTENED SG F9-650AX
9″ FORD 6.50 Ratio R&P LIGHTENED SG F9-650L
9″ FORD 6.66 Ratio R&P AX LIGHTENED SG F9-666AX
9″ FORD 6.66 Ratio R&P LIGHTENED SG F9-666L
9″ FORD 6.83 Ratio R&P AX LIGHTENED SG F9-683AX
9″ FORD 6.83 Ratio R&P LIGHTENED SG F9-683L
9″ FORD 7.00 Ratio R&P AX LIGHTENED SG F9-700AX
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 Ratio 3.08 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 4.56 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 LATE SG F10.25-355L
10.25″ FORD 3.73 Ratio R&P SG F10.25-373
10.25″ FORD 3.73 Ratio R&P LATE SG F10.25-373L
10.25″ FORD 4.10 Ratio R&P SG F10.25-411
10.25″ FORD 4.10 Ratio R&P LATE SG F10.25-411L
10.25″ FORD 4.30 Ratio R&P LATE SG F10.25-430L
10.25″ FORD 4.56 Ratio R&P SG F10.25-456
10.25″ FORD 4.56 Ratio R&P LATE SG F10.25-456L
10.25″ FORD 4.89 Ratio R&P LATE SG F10.25-489L
10.25″ FORD 5.13 Ratio R&P LATE SG F10.25-513L
10.25″ FORD 5.38 Ratio R&P LATE SG F10.25-538L