Collection: All Gearing | Dana Spicer, Meritor, Rockwell, Eaton | NOS & OEM Heavy-Duty Gears
All Gearing – Heavy-Duty Differential & Transmission Gears
Shop a massive selection of heavy-duty ring & pinion gearsets, axle gears, side gears, spider gears, and transmission gears. We stock New Genuine, New Old Stock (NOS), and quality take-out gearing from Dana Spicer, Meritor, Rockwell, AxleTech, Eaton Fuller, and more.
Whether you need to rebuild a differential, change gear ratio for better pulling power or fuel economy, or replace worn transmission gears, Discount Parts Exchange has the right gearing in stock and ready to ship from Mansfield, Ohio.
Why Shop DPX Gearing?
- Hard-to-Find NOS & Genuine OEM Parts — Many no longer available from dealers
- Popular Applications — Dana S135, S150, DS/RS series, Meritor 140/145/160 series, Eaton Fuller transmissions, and more
- Expert Support — Not sure what ratio or part you need? Send us your axle tag or BOM number — we’ll help you get the right gearset fast
Call our drivetrain specialists at 419-522-3320 for compatibility help and availability.
DPX Drivetrain Tools Hub
Free tools built by rebuilders for truckers and fleets — Road Speed & Ratio Calculator, gear ratio comparison charts, and full IPL library.
Open DPX Drivetrain Tools Hub →
Heavy-Duty Solutions — Built to Perform. Trusted to Last. Discount Parts Exchange (DPX) — Since 1997.
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Vendor:truckparts4u.com70-196-10 Spicer Countershaft 2nd Gear | Auxiliary Transmission | Used OEM
70-196-10 Spicer Countershaft 2nd Gear — Auxiliary Transmission — Used OEM The 70-196-10 Spicer auxiliary transmission gear is...Regular price $274.47 USDSale price $274.47 USD Regular priceUnit price per -
Vendor:Eaton / Dana Heavy Axle68909R94 Gearset | Genuine International RA39 |Dana F155/F170 | 7.80 Ratio
68909R94 | International RA39 / Dana F155/F170 Gear Set | 7.80 Ratio – New Genuine (NOS) 68909R94 is...Regular price $1,774.47 USDSale price $1,774.47 USD Regular priceUnit price per$1,974.47 USDSale -
Vendor:GM6590594 | GM Delco Oil Pump Kit | A/C Gear Application | New Genuine OEM (NOS)
6590594 | GM Delco Oil Pump Kit | A/C Gear Application | New Genuine OEM (NOS) Product SummaryPart...Regular price $21.47 USDSale price $21.47 USD Regular priceUnit price per -
Vendor:Spicer Transmission63-35-47-1X Dana Spicer TTC Input Shaft | CM60 Series Transmission | New Genuine (NOS)
63-35-47-1X | Dana Spicer TTC Input Shaft – CM60 Series – New Genuine (NOS) The 63-35-47-1X Dana Spicer...Regular price $374.47 USDSale price $374.47 USD Regular priceUnit price per$424.74 USDSale -
Vendor:Spicer Transmission63-35-21-1X Dana Spicer TTC Input Shaft CM60 Series | New Genuine (NOS)
63-35-21-1X | Dana Spicer TTC Input Shaft – CM60 Series – New Genuine (NOS) The 63-35-21-1X Dana Spicer...Regular price $347.74 USDSale price $347.74 USD Regular priceUnit price per$395.00 USDSale -
Vendor:Spicer Transmission62-35-98 Dana Spicer TTC Input Shaft | 6000 Series Trans | New Genuine (NOS)
62-35-98 | Dana Spicer TTC Input Shaft 6000 Series Transmission – New Genuine (NOS) The 62-35-98 Dana Spicer...Regular price $395.00 USDSale price $395.00 USD Regular priceUnit price per -
Vendor:Spicer Transmission62-35-96 Dana Spicer TTC Input Shaft 6000 Series | New Genuine (NOS)
62-35-96 | Dana Spicer TTC Input Shaft – 6000 Series Transmission – New Genuine (NOS) New genuine Dana...Regular price $395.00 USDSale price $395.00 USD Regular priceUnit price per -
Vendor:Eaton / Dana Heavy Axle597248C91 Gearset | International RA474, RA57, W230, 3.73 Ratio – Genuine Dana Spicer
597248C91 | International RA474 / RA57 / W230 Gear Set | 3.73 Ratio | New Genuine (NOS) New...Regular price $774.74 USDSale price $774.74 USD Regular priceUnit price per$947.74 USDSale -
Vendor:Spicer Transmission56-35-18 Dana Spicer | Tremec, TTC | Input Shaft 56-35-6-1X | New Take-Off Genuine
56-35-18 | Dana Spicer TTC Input Shaft (56-35-6-1X) – ES46 – New Take-Off Genuine The 56-35-18 (shaft model...Regular price $474.47 USDSale price $474.47 USD Regular priceUnit price per$545.32 USDSale -
Vendor:Spicer Transmission56-30-3 Dana Spicer TTC Countershaft ES56-5A | New Genuine (NOS)
56-30-3 | Dana Spicer TTC Countershaft ES56-5A | New Genuine (NOS) The 56-30-3 (also known as ES56-5A) is...Regular price $395.00 USDSale price $395.00 USD Regular priceUnit price per -
Vendor:Spicer Transmission53-35-20-1X | Spicer / TTC Input Shaft | New Genuine
53-35-20-1X Spicer / TTC Input Shaft — New Genuine The 53-35-20-1X Dana Spicer / TTC input shaft is...Regular price $395.00 USDSale price $395.00 USD Regular priceUnit price per -
Vendor:Spicer Transmission53-35-19-1X | Spicer / TTC Input Shaft | New Genuine
53-35-19-1X Spicer / TTC Input Shaft — New Genuine The 53-35-19-1X Dana Spicer / TTC input shaft is...Regular price $347.74 USDSale price $347.74 USD Regular priceUnit price per$395.00 USDSale
Your #1 Source for Remanufactured Transmissions, Differentials, Transfer Cases & PTOs — Since 1997
Trusted by Fleets & Technicians for Over 25 Years
Discount Parts Exchange delivers quality, reliability, and value in every drivetrain component. Backed by decades of hands-on experience, our heavy-duty solutions are built to keep your truck running.