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:MeritorA36802-4-820 Gearset | New Genuine Meritor-Rockwell-AxleTech SQHD
A36802-4 | Meritor-Rockwell-AxleTech SQHD-Front Gearset | 8.20 Ratio (41/5) | New Genuine New genuine Meritor-Rockwell-AxleTech ring & pinion...Regular price $1,347.74 USDSale price $1,347.74 USD Regular priceUnit price per -
Vendor:MeritorA36684-5-489 Gearset | Meritor-Rockwell-AxleTech | SSHR | New | Replaced by A40176-9
A36684-5-489 | Meritor-Rockwell-AxleTech R-155 Gearset | 4.89 Ratio (44/9) | New Genuine (NOS) New genuine Meritor-Rockwell-AxleTech ring &...Regular price $1,274.47 USDSale price $1,274.47 USD Regular priceUnit price per$1,647.74 USDSale -
Vendor:MeritorA36612-1-463 Gearset | Meritor Rockwell AxleTech | H162 | New
A36612-1 | Meritor-Rockwell-AxleTech H162 Gearset | 4.63 Ratio (37/8) | New Genuine (NOS) New genuine Meritor-Rockwell-AxleTech ring &...Regular price $1,247.47 USDSale price $1,247.47 USD Regular priceUnit price per -
Vendor:MeritorA35812-20-529 Gearset | Genuine Meritor-Rockwell-AxleTech | SQHD-Front | New OE
A35812-20 | Meritor-Rockwell-AxleTech SQHD Front Gearset | 5.29 Ratio (37/7) | New Genuine (NOS) New genuine Meritor /...Regular price $974.47 USDSale price $974.47 USD Regular priceUnit price per$1,474.47 USDSale -
Vendor:MeritorA35804-18-720-U Gearset | Meritor Rockwell AxleTech SQHD-Front | Used Aftermarket
A35804-18-U | Meritor-Rockwell-AxleTech SQHD Front Gearset | 7.20 Ratio (36/5) | Used Used aftermarket ring & pinion gearset...Regular price $447.74 USDSale price $447.74 USD Regular priceUnit price per$649.74 USDSale -
Vendor:MeritorA35804-18-720 Gearset | Meritor Rockwell AxleTech SQHD Front R7.20 | New Aftermarket
A35804-18 | Meritor-Rockwell-AxleTech SQHD Front Gearset | 7.20 Ratio (36/5) | New Aftermarket New aftermarket ring & pinion...Regular price $774.47 USDSale price $774.47 USD Regular priceUnit price per$1,147.74 USDSale -
Vendor:MeritorA35800-9-U Gearset | Meritor Rockwell AxleTech | SQHR | 8.60 Ratio | Used
A35800-9-U | Meritor-Rockwell-AxleTech SQHD Rear-Rear Gearset | 8.60 Ratio (43/5) | Used Genuine Used genuine Meritor / Rockwell...Regular price $1,447.74 USDSale price $1,447.74 USD Regular priceUnit price per$1,574.47 USDSale -
Vendor:MeritorA35768-1-557 Gearset | Meritor-Rockwell-AxleTech | SSHR R155 | 39-7 | New
A35768-1-557 | Meritor-Rockwell-AxleTech SSHR-R / R-155-R Gearset | 5.57 Ratio (39/7) | New Genuine (NOS) New genuine Meritor-Rockwell-AxleTech...Regular price $1,447.44 USDSale price $1,447.44 USD Regular priceUnit price per$1,874.47 USDSale -
Vendor:MeritorA35732-12-617 Gearset | Meritor-Rockwell-AxleTech | H172 | New Aftermarket
A35732-12 | Meritor-Rockwell-AxleTech H172 Gearset | 6.17 Ratio (37/6) | New Aftermarket New aftermarket Meritor-Rockwell-AxleTech ring & pinion...Regular price $1,174.74 USDSale price $1,174.74 USD Regular priceUnit price perSold out -
Vendor:MeritorA35634-6-780 Gearset | Meritor-Rockwell-AxleTech | D100 | New Aftermarket
A35634-6 | Meritor-Rockwell-AxleTech D100 Gearset | 7.80 Ratio (39/5) | New Aftermarket New aftermarket ring & pinion gearset...Regular price $1,174.47 USDSale price $1,174.47 USD Regular priceUnit price per$1,347.74 USDSale -
Vendor:MeritorA35620-3-720 Gearset | Meritor Rockwell AxleTech Q100/Q145 | Used
A35620-3 | Meritor-Rockwell-AxleTech Q100/Q145 Gearset | 7.20 Ratio (36/5) | Used Genuine Used genuine Meritor / Rockwell /...Regular price $1,447.74 USDSale price $1,447.74 USD Regular priceUnit price per$1,847.74 USDSale -
Vendor:MeritorA35602-529 Gear Set | Meritor-Rockwell-Axletech | H162 | Aftermarket
A35602 | Meritor-Rockwell-AxleTech H162 Gearset | 5.29 Ratio (37/7) | New Aftermarket New aftermarket Meritor-Rockwell-AxleTech ring & pinion...Regular price $897.47 USDSale price $897.47 USD Regular priceUnit price per
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.