Collection: All Gearing – Discount Parts Exchange Since 1997
Heavy-Duty Differential & Transmission Gearing
Shop our complete selection of heavy-duty gear sets for Class 6, 7, and 8 trucks. We stock differential ring & pinion sets, axle gearing kits, and transmission gears from leading OEMs like Dana Spicer, Eaton, Meritor, and Rockwell. Whether you need to rebuild, re-gear, or upgrade for torque, economy, or hauling power, these genuine and aftermarket gear sets are built to perform under the toughest conditions.
Gearing Options
- Differential Gearing: OEM ring & pinion sets, matched gear pairs, spider and side gears for popular models including Dana S135, S150, DS/RS404, and Meritor 145/160 series.
- Transmission Gears: Mainshaft, countershaft, splitter, and auxiliary gears for Eaton Fuller transmissions and more.
- Condition Choices: New Old Stock (NOS), verified take-out assemblies, and premium aftermarket gearing.
Why Choose Our Gear Sets
- Application-specific expertise: Ratio recommendations for engine, tire size, and duty cycle.
- Quality assurance: Each gear inspected for wear, tooth pattern, and OEM compatibility.
- Fast shipping: U.S. warehouse in Mansfield, Ohio — international shipping available.
Fitment Help
Not sure which gearset fits your axle or transmission? Provide us your axle tag, BOM, or transmission model number — we’ll confirm the correct ratio and part number before shipping. Call 419-522-3320 for expert support.
Heavy-Duty Solutions — Built to Keep Your Drivetrain Moving.
Built to Perform. Trusted to Last.
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Vendor:truckparts4u.com3785597 | GM H052 / HO52 Gear Set – 4.57 Ratio (1949–1972 Trucks, Aftermarket NOS)
3785597 GM H052 / HO52 Gear Set 4.57 Ratio – New Aftermarket (NOS) Call for Pricing & Availability:...Regular price $347.74 USDSale price $347.74 USD Regular priceUnit price per$375.00 USDSale -
Vendor:Eaton / Dana Heavy Axle360KG107-X Gear Set | Genuine OEM Dana S135/S150 4.44 Ratio
360KG107X | Dana Spicer Gearset S135 S150 G360CA | 4.44 Ratio | 1695924C91 | New Genuine The 360KG107X...Regular price $1,347.74 USDSale price $1,347.74 USD Regular priceUnit price per -
Vendor:Eaton / Dana Heavy Axle360KG105-X Gear Set | Genuine OEM Dana S135/S150 3.91 Ratio
360KG105X | Dana Spicer Gearset S135 S150 G360CA | 3.91 Ratio | 1695922C91 | New Genuine The 360KG105X...Regular price $1,347.74 USDSale price $1,347.74 USD Regular priceUnit price perSold out -
Vendor:Eaton / Dana Heavy Axle360KG103-X Gear Set | Genuine OEM Dana S135/S150 3.54 Ratio
360KG103X | Dana Spicer Gearset S135 S150 G360CA | 3.54 Ratio | 1695920C91 | New Genuine The 360KG103X...Regular price $1,347.74 USDSale price $1,347.74 USD Regular priceUnit price per -
Vendor:The Reman Center, Inc.FS6406A Eaton Fuller 6-Speed Transmission | 660 lb-ft | Dual PTO | DPE Reman (Exchange)
FS6406A | Eaton Fuller 6-Speed Transmission | Remanufactured by DPE Call to Order: 419-522-3320 Product Summary The Eaton...Regular price $0.00 USDSale price $0.00 USD Regular priceUnit price per -
Vendor:The Reman Center, Inc.FS5406A Eaton Fuller 6-Speed Transmission | Single Countershaft | Reman by DPE (FS5406)
FS5406A | Eaton Fuller 6-Speed Transmission (Single Countershaft) — Remanufactured by DPE Call to Order: 419-522-3320 Product Summary...Regular price $0.00 USDSale price $0.00 USD Regular priceUnit price per -
Vendor:Meritor3235W413 | Top Half Differential Case for Meritor Rockwell F106 F140 | New Take-Off OEM
3235W413 | Top Half Differential Case for Meritor Rockwell F106 F140 | New Take-Off OEM New take-off Meritor...Regular price $267.74 USDSale price $267.74 USD Regular priceUnit price perSold out -
Vendor:Eaton-FullerS2283 Eaton Fuller Super 10 Shift Tower Assembly | New OEM
S2283 Eaton Fuller Super 10 Forward Tall Shift Tower Assembly – New OEM Genuine – Complete, No Gaskets...Regular price $374.47 USDSale price $374.47 USD Regular priceUnit price per$574.47 USDSold out Sale -
Vendor:MeritorKIT2229 Meritor Nest Kit F106-34 Spline | 2234-N-872 Axle Gears, Thrust Washers, Spider Gears | New Aftermarket
KIT2229 Meritor Nest Kit F106-34 Spline, 2234-N-872 Axle Gears, Thrust Washers, Spider Gears – New Aftermarket Product Summary:KIT2229...Regular price $247.47 USDSale price $247.47 USD Regular priceUnit price per -
Vendor:Eaton-FullerK3352 | Eaton Fuller Wiring Harness | RTAO Series | Includes 691388 & 691439 | New OEM
K3352 Eaton Fuller Wiring Harness for “RTAO” Series Transmissions – Includes 691388 & 691439 Harness Adaptors – New...Regular price $497.47 USDSale price $497.47 USD Regular priceUnit price per -
Vendor:Eaton-FullerK2363 | Eaton Fuller Mid-Range Shift Tower w/Rev Stop | 4301118 | New OEM
K2363 Eaton Fuller Mid-Range Shift Tower w/ Reverse Stop — New OEM This genuine Eaton Fuller shift tower...Regular price $227.47 USDSale price $227.47 USD Regular priceUnit price per -
Vendor:Eaton-FullerA6909 Eaton Fuller Pistol Grip Style Shift Knob/Valve Assembly | New Genuine Fuller
A6909 Eaton Fuller Pistol-Grip Shift Knob / Valve — New Genuine New Genuine Eaton Fuller pistol-grip master shift...Regular price $74.47 USDSale price $74.47 USD Regular priceUnit price per$128.83 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.