View our Specials! Coupon Code: SaveIn2026
Looking for aftermarket parts to modify or upgrade your 1978 Buick Skylark with final drive gears? At Tunersports.com we carry a huge selection of the top name brand performance final drive gear parts and accessories.
 IN STOCK - DROPSHIPS YG GM7.5-273Yukon 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 GM 7.5in in a 2.73 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $544.89 |
 IN STOCK - DROPSHIPS YG GM7.5-308Yukon 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 GM 7.5in in a 3.08 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $486.89 |
 IN STOCK - DROPSHIPS YG GM7.5-323Yukon 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 GM 7.5in in a 3.23 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $442.89 |
 IN STOCK - DROPSHIPS YG GM7.5-342Yukon 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 GM 7.5in in a 3.42 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $454.89 |
 IN STOCK - DROPSHIPS YG GM7.5-342TYukon 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 Thick Gear Set For GM 7.5in in a 3.42 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $493.89 |
 IN STOCK - DROPSHIPS YG GM7.5-373Yukon 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 GM 7.5in in a 3.73 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $597.89 |
 IN STOCK - DROPSHIPS YG GM7.5-373TYukon 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 Thick Gear Set For GM 7.5in in a 3.73 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $520.89 |
 IN STOCK - DROPSHIPS YG GM7.5-411Yukon 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 GM 7.5in in a 4.11 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $520.89 |
 IN STOCK - DROPSHIPS YG GM7.5-411TYukon 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 Thick Gear Set For GM 7.5in in a 4.11 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $454.89 |
 IN STOCK - DROPSHIPS YG GM7.5-456Yukon 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 GM 7.5in in a 4.56 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $454.89 |
 IN STOCK - DROPSHIPS YG GM7.5-456KYukon 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 Ring and Pinion Gear Set For GM 7.5in in a 4.56 Ratio w/ Small Parts 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $503.89 |
 IN STOCK - DROPSHIPS YGK2329Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.... Yukon 70-96 Chevrolet Caprice / 73-83 Chevrolet Malibu Re-Gear Kit - 8.5in Diff 30 Spline 3.08 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $689.89 |
 IN STOCK - DROPSHIPS YGK2330Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.... Yukon 70-96 Chevrolet Caprice / 73-83 Chevrolet Malibu Re-Gear Kit - 8.5in Diff 30 Spline 3.42 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $689.89 |
 OUT OF STOCK YGK2331Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.... Yukon 70-96 Chevrolet Caprice / 73-83 Chevrolet Malibu Re-Gear Kit - 8.5in Diff 30 Spline 3.73 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $689.89 |
 OUT OF STOCK YGK2332Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.... Yukon 70-96 Chevrolet Caprice / 73-83 Chevrolet Malibu Re-Gear Kit - 8.5in Diff 30 Spline 3.90 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $689.89 |
 OUT OF STOCK YGK2333Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.... Yukon 70-96 Chevrolet Caprice / 73-83 Chevrolet Malibu Re-Gear Kit - 8.5in Diff 30 Spline 4.11 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $705.89 |
 IN STOCK - DROPSHIPS YGK2334Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.... Yukon 70-96 Chevrolet Caprice / 73-83 Chevrolet Malibu Re-Gear Kit - 8.5in Diff 30 Spline 4.56 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $705.89 |
 IN STOCK - DROPSHIPS YGK2335Yukon Gear & Axle(R) provides the highest quality aftermarket drivetrain parts in the industry. Yukon products are produced using superior materials and built to tolerances that exceed OE specifications. We do drivetrain right! Yukon manufactures high performance ring and pinions, positractions, loc... Yukon 70-96 Chevrolet Caprice / 73-83 Chevrolet Malibu Re-Gear Kit - 8.5in Diff 28 Spline 3.08 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $1,428.89 |
 OUT OF STOCK YGK2336Yukon Gear & Axle(R) provides the highest quality aftermarket drivetrain parts in the industry. Yukon products are produced using superior materials and built to tolerances that exceed OE specifications. We do drivetrain right! Yukon manufactures high performance ring and pinions, positractions, loc... Yukon 70-96 Chevrolet Caprice Limited Slip & Re-Gear Kit - 8.5in Diff 28 Spline 3.42 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $1,489.89 |
 OUT OF STOCK YGK2337Yukon Gear & Axle(R) provides the highest quality aftermarket drivetrain parts in the industry. Yukon products are produced using superior materials and built to tolerances that exceed OE specifications. We do drivetrain right! Yukon manufactures high performance ring and pinions, positractions, loc... Yukon 70-96 Chevrolet Caprice Limited Slip & Re-Gear Kit - 8.5in Diff 28 Spline 3.73 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $1,551.89 |
 OUT OF STOCK YGK2338Yukon Gear & Axle(R) provides the highest quality aftermarket drivetrain parts in the industry. Yukon products are produced using superior materials and built to tolerances that exceed OE specifications. We do drivetrain right! Yukon manufactures high performance ring and pinions, positractions, loc... Yukon 70-96 Chevrolet Caprice Limited Slip & Re-Gear Kit - 8.5in Diff 28 Spline 3.90 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $1,428.89 |
 OUT OF STOCK YGK2339Yukon Gear & Axle(R) provides the highest quality aftermarket drivetrain parts in the industry. Yukon products are produced using superior materials and built to tolerances that exceed OE specifications. We do drivetrain right! Yukon manufactures high performance ring and pinions, positractions, loc... Yukon 70-96 Chevrolet Caprice Limited Slip & Re-Gear Kit - 8.5in Diff 28 Spline 4.11 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $1,489.89 |
 OUT OF STOCK YGK2340Yukon Gear & Axle(R) provides the highest quality aftermarket drivetrain parts in the industry. Yukon products are produced using superior materials and built to tolerances that exceed OE specifications. We do drivetrain right! Yukon manufactures high performance ring and pinions, positractions, loc... Yukon 70-96 Chevrolet Caprice Limited Slip & Re-Gear Kit - 8.5in Diff 30 Spline 4.56 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $1,489.89 |
 IN STOCK - DROPSHIPS ZG GM7.5-273USA Standard Ring & Pinion Gear Set For GM 7.5in in a 2.73 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $421.89 |
 IN STOCK - DROPSHIPS ZG GM7.5-308USA Standard Ring & Pinion Gear Set For GM 7.5in in a 3.08 Ratio 1975-1979 Buick Skylark Base 1976-1979 Buick Skylark S 1978-1978 Buick Skylark Sport 1978-1979 Buick Skylark Custom $353.89 |