Looking for aftermarket parts to modify or upgrade your 1979 GMC K2500 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 GM9.5-411Yukon 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 9.5in in a 4.11 Ratio 1979-1982 GMC K2500 Sierra Grande 1979-1986 GMC K2500 Base / High Sierra / Sierra Classic $470.89 |
IN STOCK - LOW YG GM9.5-456Yukon 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 9.5in in a 4.56 Ratio 1979-1982 GMC K2500 Sierra Grande 1979-1986 GMC K2500 Base / High Sierra / Sierra Classic $477.89 |
IN STOCK - DROPSHIPS YG GM9.5-488Yukon 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 9.5in in a 4.88 Ratio 1979-1982 GMC K2500 Sierra Grande 1979-1986 GMC K2500 Base / High Sierra / Sierra Classic $470.89 |
IN STOCK - LOW YG GM9.5-513Yukon 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 GM 9.5in in a 5.13 Ratio 1979-1982 GMC K2500 Sierra Grande 1979-1986 GMC K2500 Base / High Sierra / Sierra Classic $470.89 CLEARANCE VIEW PRICE IN CART |

OUT OF STOCK ZG D44-308USA Standard Replacement Ring & Pinion Gear Set For Dana 44 in a 3.08 Ratio 1979-1980 GMC K2500 Base / High Sierra / Sierra Classic / Sierra Grande $320.89 |
IN STOCK - DROPSHIPS ZG D44-354USA Standard Ring & Pinion Replacement Gear Set For Dana 44 in a 3.54 Ratio 1979-1980 GMC K2500 Base / High Sierra / Sierra Classic / Sierra Grande $320.89 |
IN STOCK - DROPSHIPS ZG D44-373USA Standard Dana 44 Ring & Pinion Gear Set Replacement 1979-1980 GMC K2500 Base / High Sierra / Sierra Classic / Sierra Grande $320.89 |
OUT OF STOCK ZG D44-392USA Standard Replacement Ring & Pinion Gear Set For Dana 44 in a 3.92 Ratio 1979-1980 GMC K2500 Base / High Sierra / Sierra Classic / Sierra Grande $320.89 |
IN STOCK - DROPSHIPS ZG D44-411USA Standard Replacement Ring & Pinion Gear Set For Dana 44 in a 4.11 Ratio 1979-1980 GMC K2500 Base / High Sierra / Sierra Classic / Sierra Grande $320.89 |
IN STOCK - DROPSHIPS ZG D44-411TUSA Standard Dana 44 Ring & Pinion Thick Gear Set Replacement 1979-1980 GMC K2500 Base / High Sierra / Sierra Classic / Sierra Grande $320.89 |
IN STOCK - DROPSHIPS ZG D44-456USA Standard Replacement Ring & Pinion Gear Set For Dana 44 in a 4.55 Ratio 1979-1980 GMC K2500 Base / High Sierra / Sierra Classic / Sierra Grande $309.89 |
OUT OF STOCK ZG D44-456TUSA Standard Dana 44 Ring & Pinion Thick Gear Set Replacement 1979-1980 GMC K2500 Base / High Sierra / Sierra Classic / Sierra Grande $309.89 |
IN STOCK - DROPSHIPS ZG D44-488USA Standard Replacement Ring & Pinion Gear Set For Dana 44 in a 4.88 Ratio 1979-1980 GMC K2500 Base / High Sierra / Sierra Classic / Sierra Grande $362.89 |
IN STOCK - DROPSHIPS ZG D44-488TUSA Standard Replacement Ring & Pinion Thick Gear Set For Dana 44 in a 4.88 Ratio 1979-1980 GMC K2500 Base / High Sierra / Sierra Classic / Sierra Grande $320.89 |
IN STOCK - DROPSHIPS ZG D44-513USA Standard Replacement Ring & Pinion Gear Set For Dana 44 in a 5.13 Ratio 1979-1980 GMC K2500 Base / High Sierra / Sierra Classic / Sierra Grande $320.89 |
IN STOCK - DROPSHIPS ZG D44-513TUSA Standard Replacement Ring & Pinion Thick Gear Set For Dana 44 in a 5.13 Ratio 1979-1980 GMC K2500 Base / High Sierra / Sierra Classic / Sierra Grande $356.89 |
IN STOCK - LOW ZG D44-538USA Standard Replacement Ring & Pinion Gear Set For Dana 44 in a 5.38 Ratio 1979-1980 GMC K2500 Base / High Sierra / Sierra Classic / Sierra Grande $320.89 |
IN STOCK - DROPSHIPS ZG D44-589USA Standard Replacement Ring & Pinion Gear Set For Dana 44 in a 5.89 Ratio 1979-1980 GMC K2500 Base / High Sierra / Sierra Classic / Sierra Grande $320.89 |

IN STOCK - DROPSHIPS ZG GM14T-373USA Standard Ring & Pinion Gear Set For 10.5in GM 14 Bolt Truck in a 3.73 Ratio 1979-1982 GMC K2500 Sierra Grande 1979-1986 GMC K2500 Base / High Sierra / Sierra Classic $367.89 |
IN STOCK - DROPSHIPS ZG GM14T-411USA Standard Ring & Pinion Gear Set For 10.5in GM 14 Bolt Truck in a 4.11 Ratio 1979-1982 GMC K2500 Sierra Grande 1979-1986 GMC K2500 Base / High Sierra / Sierra Classic $419.89 |
OUT OF STOCK ZG GM14T-456USA Standard Ring & Pinion Gear Set For 10.5in GM 14 Bolt Truck in a 4.56 Ratio 1979-1982 GMC K2500 Sierra Grande 1979-1986 GMC K2500 Base / High Sierra / Sierra Classic $444.89 |
IN STOCK - DROPSHIPS ZG GM14T-456TUSA Standard Ring & Pinion Thick Gear Set For 10.5in GM 14 Bolt Truck in a 4.56 Ratio 1979-1982 GMC K2500 Sierra Grande 1979-1986 GMC K2500 Base / High Sierra / Sierra Classic $525.89 |
OUT OF STOCK ZG GM14T-488TUSA Standard Ring & Pinion Thick Gear Set For 10.5in GM 14 Bolt Truck in a 4.88 Ratio 1979-1982 GMC K2500 Sierra Grande 1979-1986 GMC K2500 Base / High Sierra / Sierra Classic $444.89 |
IN STOCK - DROPSHIPS ZG GM14T-513TUSA Standard Ring & Pinion Thick Gear Set For 10.5in GM 14 Bolt Truck in a 5.13 Ratio 1979-1982 GMC K2500 Sierra Grande 1979-1986 GMC K2500 Base / High Sierra / Sierra Classic $508.89 |
IN STOCK - DROPSHIPS ZG GM14T-538TUSA Standard Ring & Pinion Thick Gear Set For 10.5in GM 14 Bolt Truck in a 5.38 Ratio 1979-1982 GMC K2500 Sierra Grande 1979-1986 GMC K2500 Base / High Sierra / Sierra Classic $471.89 |