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:Eaton / Dana Heavy Axle94378 | Eaton / Dana-Spicer 23105-C 39 Spline Axle Gears | New OEM
94378 | Eaton / Dana-Spicer 23105-C Axle Gears | 39 Spline – New Genuine (NOS) 94378 (also 094378)...Regular price $157.47 USDSale price $157.47 USD Regular priceUnit price per$281.54 USDSale -
Vendor:Eaton / Dana Heavy Axle86784 | Eaton / Dana-Spicer DS480 A-Gears | 22 Spline | New Genuine
86784 | Eaton / Dana-Spicer DS480 A-Gears | 22 Spline – New Genuine (NOS) 86784 (also 086784) are...Regular price $74.47 USDSale price $74.47 USD Regular priceUnit price per$124.47 USDSale -
Vendor:Eaton / Dana Heavy Axle81470 Oil Pump | Eaton Dana-Spicer | 44DS, 44DT, 44DP Power Divider (New Genuine)
81470 | Eaton / Dana-Spicer Oil Pump | 44DS / 44DT / 44DP Power Divider | New Genuine...Regular price $397.47 USDSale price $397.47 USD Regular priceUnit price per -
Vendor:Spicer Transmission73-8-48 Spicer Auxiliary Transmission Mainshaft 2nd Gear | New Genuine
73-8-48 Spicer Auxiliary Transmission M/S Gear — Mainshaft Second Gear — New Genuine The 73-8-48 Spicer auxiliary transmission...Regular price $224.74 USDSale price $224.74 USD Regular priceUnit price per$347.47 USDSale -
Vendor:Dana Off-Highway DOH706248-4X Gearset | Dana D706248-4, Meritor/AxleTech, 7/41 R5.86 – Genuine
706248-4X | Dana Gearset | TC 7/41 R5.86 | Meritor/AxleTech | New Genuine (NOS) New genuine Dana gearset...Regular price $774.47 USDSale price $774.47 USD Regular priceUnit price per -
Vendor:Spicer Transmission70-362-11 / 311624X Spicer Mainshaft | New Genuine | Dana Spicer 8031
70-362-11 / 311624X | Spicer Mainshaft for 8031 / 8035 Auxiliary | New Genuine OEM The 70-362-11 /...Regular price $474.47 USDSale price $474.47 USD Regular priceUnit price per -
Vendor:Spicer Transmission70-196-29 Spicer Countershaft 2nd Gear | Auxiliary Transmission | Used OEM
70-196-29 Spicer Countershaft 2nd Gear — R8341 Auxiliary Transmission — New Genuine The 70-196-29 Dana Spicer second-speed gear...Regular price $274.47 USDSale price $274.47 USD Regular priceUnit price per$347.74 USDSale -
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) New Genuine...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
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.