Looking for aftermarket parts to modify or upgrade your 1990 GMC K3500 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 D70-354Yukon 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 Dana 70 in a 3.54 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $892.89 |
IN STOCK - LOW YG D70-373Yukon 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 Dana 70 in a 3.73 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $868.89 |
IN STOCK - DROPSHIPS YG D70-411Yukon 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 Dana 70 in a 4.11 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $642.89 |
IN STOCK - DROPSHIPS YG D70-456Yukon 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 Dana 70 in a 4.56 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $642.89 |
IN STOCK - DROPSHIPS YG D70-456TYukon 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 Dana 70 in a 4.56 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $743.89 |
IN STOCK - DROPSHIPS YG D70-488Yukon 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 Dana 70 in a 4.88 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $642.89 |
IN STOCK - DROPSHIPS YG D70-513Yukon 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 Dana 70 in a 5.13 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $642.89 |
OUT OF STOCK YG D70-717Yukon 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 Dana 70 in a 7.17 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $831.89 |

IN STOCK - DROPSHIPS YG GM9.25-342RYukon 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 9.25in IFS Reverse Rotation in a 3.42 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $470.89 |
IN STOCK - DROPSHIPS YG GM9.25-373RYukon 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 9.25in IFS Reverse Rotation in a 3.73 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $470.89 |
IN STOCK - DROPSHIPS YG GM9.25-411RYukon 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 9.25in IFS Reverse Rotation in a 4.11 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $472.89 |
IN STOCK - LOW YG GM9.25-456RYukon 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 9.25in IFS Reverse Rotation in a 4.56 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $470.89 |
IN STOCK - DROPSHIPS YG GM9.25-488RYukon 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 9.25in IFS Reverse Rotation in a 4.88 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $522.89 |
IN STOCK - DROPSHIPS YG GM9.25-513RYukon 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 9.25in IFS Reverse Rotation in a 5.13 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $553.89 |
IN STOCK - DROPSHIPS YG GM9.25-538RYukon 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 9.25in IFS Reverse Rotation in a 5.38 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $522.89 |

IN STOCK - DROPSHIPS ZG D70-354USA Standard Replacement Ring & Pinion Gear Set For Dana 70 in a 3.54 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $414.89 |
IN STOCK - DROPSHIPS ZG D70-373USA Standard Replacement Ring & Pinion Gear Set For Dana 70 in a 3.73 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $429.89 |
IN STOCK - DROPSHIPS ZG D70-411USA Standard Replacement Ring & Pinion Gear Set For Dana 70 in a 4.11 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $429.89 |
IN STOCK - DROPSHIPS ZG D70-456USA Standard Replacement Ring & Pinion Gear Set For Dana 70 in a 4.56 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $429.89 |
IN STOCK - DROPSHIPS ZG D70-488USA Standard Replacement Ring & Pinion Gear Set For Dana 70 in a 4.88 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $429.89 |

IN STOCK - DROPSHIPS ZG GM9.25-373RUSA Standard Ring & Pinion Gear Set For GM 9.25in IFS Reverse Rotation in a 3.73 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $333.89 |
IN STOCK - DROPSHIPS ZG GM9.25-456RUSA Standard Ring & Pinion Gear Set For GM 9.25in IFS Reverse Rotation in a 4.56 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $333.89 |
IN STOCK - DROPSHIPS ZG GM9.25-513RUSA Standard Ring & Pinion Gear Set For GM 9.25in IFS Reverse Rotation in a 5.13 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $333.89 |
IN STOCK - DROPSHIPS ZG GM9.25-538RUSA Standard Ring & Pinion Gear Set For GM 9.25in IFS Reverse Rotation in a 5.38 Ratio 1988-1993 GMC K3500 Sierra / Sierra SLX 1988-2000 GMC K3500 Sierra SLE $333.89 |