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Looking for aftermarket parts to modify or upgrade your Mercury Cougar with final drive gears? At Tunersports.com we carry a huge selection of the top name brand performance final drive gear parts and accessories.
 OUT OF STOCK YG F10-543-PROYukon Ring and Pinion sets give you the confidence of knowing you're running gears designed for the harshest of conditions. Whether it's on the street, off-road, or at the track; Yukon Ring and Pinion sets deliver unrivaled performance & quality. Yukon us... Yukon Ford 10in Pro Gear 5.43 Ratio 35 Spline Pinion 1967-1973 Mercury Cougar Base 1967-1979 Mercury Cougar XR-7 1969-1970 Mercury Cougar Boss 302 / Boss 429 / Cobra Jet 1977-1977 Mercury Cougar Brougham / Villager 1977-1979 Mercury Cougar Base $2,269.89 |
 OUT OF STOCK YG F7.5-273Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 7.5in in a 2.73 Ratio 1980-1982 Mercury Cougar XR-7 1981-1986 Mercury Cougar Base 1982-1982 Mercury Cougar GS 1982-1992 Mercury Cougar LS 1984-1997 Mercury Cougar XR-7 $475.89 |
 OUT OF STOCK YG F7.5-308Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 7.5in in a 3.08 Ratio 1980-1982 Mercury Cougar XR-7 1981-1986 Mercury Cougar Base 1982-1982 Mercury Cougar GS 1982-1992 Mercury Cougar LS 1984-1997 Mercury Cougar XR-7 $554.89 |
 OUT OF STOCK YG F7.5-327Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 7.5in in a 3.27 Ratio 1980-1982 Mercury Cougar XR-7 1981-1986 Mercury Cougar Base 1982-1982 Mercury Cougar GS 1982-1992 Mercury Cougar LS 1984-1997 Mercury Cougar XR-7 $725.89 |
 OUT OF STOCK YG F7.5-345Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 7.5in in a 3.45 Ratio 1980-1982 Mercury Cougar XR-7 1981-1986 Mercury Cougar Base 1982-1982 Mercury Cougar GS 1982-1992 Mercury Cougar LS 1984-1997 Mercury Cougar XR-7 $393.89 |
 OUT OF STOCK YG F7.5-373Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 7.5in in a 3.73 Ratio 1980-1982 Mercury Cougar XR-7 1981-1986 Mercury Cougar Base 1982-1982 Mercury Cougar GS 1982-1992 Mercury Cougar LS 1984-1997 Mercury Cougar XR-7 $393.89 |
 OUT OF STOCK YG F7.5-411Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 7.5in in a 4.11 Ratio 1980-1982 Mercury Cougar XR-7 1981-1986 Mercury Cougar Base 1982-1982 Mercury Cougar GS 1982-1992 Mercury Cougar LS 1984-1997 Mercury Cougar XR-7 $436.89 |
 OUT OF STOCK YG F7.5-456Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 7.5in in a 4.56 Ratio 1980-1982 Mercury Cougar XR-7 1981-1986 Mercury Cougar Base 1982-1982 Mercury Cougar GS 1982-1992 Mercury Cougar LS 1984-1997 Mercury Cougar XR-7 $436.89 |
 IN STOCK - DROPSHIPS YG F8-300Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 8in in a 3.00 Ratio 1967-1970 Mercury Cougar Base / XR-7 1969-1970 Mercury Cougar Boss 302 / Boss 429 / Cobra Jet $515.89 |
 IN STOCK - DROPSHIPS YG F8-325Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 8in in a 3.25 Ratio 1967-1970 Mercury Cougar Base / XR-7 1969-1970 Mercury Cougar Boss 302 / Boss 429 / Cobra Jet $515.89 |
 IN STOCK - DROPSHIPS YG F8-355Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 8in in a 3.55 Ratio 1967-1970 Mercury Cougar Base / XR-7 1969-1970 Mercury Cougar Boss 302 / Boss 429 / Cobra Jet $515.89 |
 IN STOCK - DROPSHIPS YG F8-380Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 8in in a 3.80 Ratio 1967-1970 Mercury Cougar Base / XR-7 1969-1970 Mercury Cougar Boss 302 / Boss 429 / Cobra Jet $515.89 |
 IN STOCK - DROPSHIPS YG F8-411Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 8in in a 4.11 Ratio 1967-1970 Mercury Cougar Base / XR-7 1969-1970 Mercury Cougar Boss 302 / Boss 429 / Cobra Jet $515.89 |
 IN STOCK - DROPSHIPS YG F9-300Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 9in in a 3.00 Ratio 1967-1973 Mercury Cougar Base 1967-1979 Mercury Cougar XR-7 1969-1970 Mercury Cougar Boss 302 / Boss 429 / Cobra Jet 1977-1977 Mercury Cougar Brougham / Villager 1977-1979 Mercury Cougar Base $533.89 |
 IN STOCK - DROPSHIPS YG F9-325Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 9in in a 3.25 Ratio 1967-1973 Mercury Cougar Base 1967-1979 Mercury Cougar XR-7 1969-1970 Mercury Cougar Boss 302 / Boss 429 / Cobra Jet 1977-1977 Mercury Cougar Brougham / Villager 1977-1979 Mercury Cougar Base $489.89 |
 IN STOCK - DROPSHIPS YG F9-350Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 9in in a 3.50 Ratio 1967-1973 Mercury Cougar Base 1967-1979 Mercury Cougar XR-7 1969-1970 Mercury Cougar Boss 302 / Boss 429 / Cobra Jet 1977-1977 Mercury Cougar Brougham / Villager 1977-1979 Mercury Cougar Base $489.89 |
 IN STOCK - DROPSHIPS YG F9-370Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 9in in a 3.70 Ratio 1967-1973 Mercury Cougar Base 1967-1979 Mercury Cougar XR-7 1969-1970 Mercury Cougar Boss 302 / Boss 429 / Cobra Jet 1977-1977 Mercury Cougar Brougham / Villager 1977-1979 Mercury Cougar Base $473.89 |
 IN STOCK - DROPSHIPS YG F9-389Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 9in in a 3.89 Ratio 1967-1973 Mercury Cougar Base 1967-1979 Mercury Cougar XR-7 1969-1970 Mercury Cougar Boss 302 / Boss 429 / Cobra Jet 1977-1977 Mercury Cougar Brougham / Villager 1977-1979 Mercury Cougar Base $473.89 |
 IN STOCK - DROPSHIPS YG F9-411Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 9in in a 4.11 Ratio 1967-1973 Mercury Cougar Base 1967-1979 Mercury Cougar XR-7 1969-1970 Mercury Cougar Boss 302 / Boss 429 / Cobra Jet 1977-1977 Mercury Cougar Brougham / Villager 1977-1979 Mercury Cougar Base $473.89 |
 IN STOCK - DROPSHIPS YG F9-430Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 9in in a 4.30 Ratio 1967-1973 Mercury Cougar Base 1967-1979 Mercury Cougar XR-7 1969-1970 Mercury Cougar Boss 302 / Boss 429 / Cobra Jet 1977-1977 Mercury Cougar Brougham / Villager 1977-1979 Mercury Cougar Base $530.89 |
 IN STOCK - DROPSHIPS YG F9-456Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 9in in a 4.56 Ratio 1967-1973 Mercury Cougar Base 1967-1979 Mercury Cougar XR-7 1969-1970 Mercury Cougar Boss 302 / Boss 429 / Cobra Jet 1977-1977 Mercury Cougar Brougham / Villager 1977-1979 Mercury Cougar Base $473.89 |
 IN STOCK - DROPSHIPS YG F9-486Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 9in in a 4.86 Ratio 1967-1973 Mercury Cougar Base 1967-1979 Mercury Cougar XR-7 1969-1970 Mercury Cougar Boss 302 / Boss 429 / Cobra Jet 1977-1977 Mercury Cougar Brougham / Villager 1977-1979 Mercury Cougar Base $489.89 |
 IN STOCK - DROPSHIPS YG F9-513Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 9in in a 5.13 Ratio 1967-1973 Mercury Cougar Base 1967-1979 Mercury Cougar XR-7 1969-1970 Mercury Cougar Boss 302 / Boss 429 / Cobra Jet 1977-1977 Mercury Cougar Brougham / Villager 1977-1979 Mercury Cougar Base $489.89 |
 IN STOCK - DROPSHIPS YG F9-529Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 9in in a 5.29 Ratio 1967-1973 Mercury Cougar Base 1967-1979 Mercury Cougar XR-7 1969-1970 Mercury Cougar Boss 302 / Boss 429 / Cobra Jet 1977-1977 Mercury Cougar Brougham / Villager 1977-1979 Mercury Cougar Base $442.89 |
 OUT OF STOCK YG F9-543Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacti... Yukon Gear High Performance Gear Set For Ford 9in in a 5.43 Ratio 1967-1973 Mercury Cougar Base 1967-1979 Mercury Cougar XR-7 1969-1970 Mercury Cougar Boss 302 / Boss 429 / Cobra Jet 1977-1977 Mercury Cougar Brougham / Villager 1977-1979 Mercury Cougar Base $431.89 |