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:Meritor3802S1059 Axle Shaft | Meritor-Rockwell-Axletech | 17.62" Length | New Genuine
3802S1059 | Meritor-Rockwell-AxleTech Axle Shaft | 17.62" Length | New Genuine (NOS) New genuine Meritor / Rockwell /...Regular price $1,174.47 USDSale price $1,174.47 USD Regular priceUnit price per -
Vendor:Spicer Transmission37-35-12-1X Spicer / TTC Input Shaft | New Genuine (NOS)
37-35-12-1X Spicer / TTC Input Shaft — New Genuine (NOS) The 37-35-12-1X Spicer / TTC input shaft is...Regular price $247.74 USDSale price $247.74 USD Regular priceUnit price per -
Vendor:Eaton / Dana Heavy Axle360SR104-1 Axle Shaft | Dana Spicer | S135 S150 G360CA | 36 Spline | New Genuine Take-Out
360SR104-1 | Dana Spicer S135 S150 Rear Axle Shaft | 36 Spline | New Genuine Take-Out 360SR104-1 (also...Regular price $474.47 USDSale price $474.47 USD Regular priceUnit price per$1,280.85 USDSale -
Vendor:Eaton / Dana Heavy Axle360KG120-X Gearset | Dana Spicer | S135 S150 G360CA | 5.38 Ratio | New Genuine
360KG120X | Dana Spicer Gearset S135 S150 G360CA | 5.38 Ratio | 1697157C91 | New Take-Out The 360KG120X...Regular price $1,347.74 USDSale price $1,347.74 USD Regular priceUnit price perSold out -
Vendor:Eaton / Dana Heavy Axle360KG105-X-U Gearset | Dana Spicer | S135 S150 G360CA | 3.91 Ratio | Used Genuine
360KG105X-U | Dana Spicer Gearset S135 S150 G360CA | 3.91 Ratio | 1697153C91 | Used Ring & Pinion...Regular price $974.44 USDSale price $974.44 USD Regular priceUnit price per$1,147.74 USDSale -
Vendor:Eaton / Dana Heavy Axle360KG104-X Gearset | Dana Spicer | S135 S150 G360CA | 3.73 Ratio | New Genuine
360KG104X | Dana Spicer Gearset S135 S150 G360CA | 3.73 Ratio | 1695921C91 | New Genuine The 360KG104X...Regular price $1,074.74 USDSale price $1,074.74 USD Regular priceUnit price per$1,347.74 USDSale -
Vendor:Eaton / Dana Heavy Axle360KG102-X Gearset | Dana Spicer | S135 S150 G360CA | 3.38 Ratio | New Genuine
360KG102X | Dana Spicer Gearset S135 S150 G360CA | 3.38 Ratio | 1697150C91 | New Genuine The 360KG102X...Regular price $947.74 USDSale price $947.74 USD Regular priceUnit price per$1,347.74 USDSale -
Vendor:Meritor3235Z884 Meritor-Rockwell-Axletech Flange F106 STD Ratio | New Take-Off Genuine
3235Z884 | Meritor-Rockwell-AxleTech F106 Flange | Standard Ratio | New Take-Off Genuine New take-off genuine Meritor / Rockwell...Regular price $416.74 USDSale price $416.74 USD Regular priceUnit price perSold out -
Vendor:Meritor3235P1134 Meritor-Rockwell-Axletech Flange | F106 Fast Ratio | Genuine OEM
3235P1134 | Meritor-Rockwell-AxleTech Flange | F106 Fast Ratio (4.63–4.88) | New Genuine New Take-Off genuine Meritor-Rockwell-AxleTech differential flange...Regular price $416.74 USDSale price $416.74 USD Regular priceUnit price perSold out -
Vendor:Meritor3226G1203 Pinion Cage | Meritor-Rockwell-Axletech | Casting 3226F1202 | Genuine
3226G1203 | Meritor Rockwell AxleTech Pinion Cage Casting | 3226F1202 | New Take-Off Genuine New Take-Off Genuine Meritor...Regular price $547.47 USDSale price $547.47 USD Regular priceUnit price per -
Vendor:Meritor28628-1X Gearset | Genuine Dana D28628X | Meritor Rockwell AxleTech | 9/41 | R4.56
28628X | Dana Spicer, Rockwell Meritor AxleTech Gearset | 4.56 Ratio | New Genuine Off-Highway The 28628X /...Regular price $774.47 USDSale price $774.47 USD Regular priceUnit price per -
Vendor:Meritor2234V828 Meritor-Rockwell-AxleTech Axle Gears SFDD4640 50 Spline | Genuine OEM
2234V828 | Meritor-Rockwell-AxleTech Axle Gears | SFDD4640 | 50 Spline | New Genuine (NOS) New genuine Meritor-Rockwell-AxleTech axle...Regular price $1,247.74 USDSale price $1,247.74 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.