Collection: All Gearing – Discount Parts Exchange Since 1997
Explore our complete inventory of heavy-duty gearing solutions designed for reliability, torque transfer, and long-lasting performance. From differential gears to transmission gearing components, every part in this collection is built to handle the toughest loads and harshest conditions. Whether you're repairing, upgrading, or building from the ground up, we've got the gear sets you need to keep things turning.
Heavy-Duty Solutions — built to keep your truck running.
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Vendor:truckparts4u.com40-35-21-1X Dana Spicer TTC Input Shaft | ES42-5 | New Genuine
40-35-21-1X Dana Spicer TTC Input Shaft – ES42-5 – New Genuine The 40-35-21-1X Dana Spicer TTC Input Shaft...Regular price $295.00 USDSale price $295.00 USD Regular priceUnit price perSold out -
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) Product Summary:New aftermarket gear set...Regular price $475.00 USDSale price $475.00 USD Regular priceUnit price per -
Vendor:My StoreS2283 Eaton Fuller Super 10 Forward Tall Shift Tower Assembly | New OEM Genuine
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 perSold out -
Vendor:My StoreKIT2229 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:My StoreK3352 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:My StoreK2363 Eaton Fuller Mid-Range Shift Tower w/Rev Stop | 4301118 | New OEM Fuller
K2363 Eaton Fuller Mid-Range Shift Tower with Reverse Stop – New OEM – Part Numbers 4301118, 23178, S-1859...Regular price $227.47 USDSale price $227.47 USD Regular priceUnit price per -
Vendor:truckparts4u.comDANA 80 AXLE HOUSING, CENTER SECTION ** NEW TAKE-OFF (NOS)
DANA 80 HOUSING ** CARRIER HOUSING ONLY, NO TUBES, COVER OR INTERNALS. THE INSIDE DIAMETER OF AXLE TUBES...Regular price $327.47 USDSale price $327.47 USD Regular priceUnit price per -
Vendor:truckparts4u.comA6909 Eaton Fuller Pistol Grip Style Shift Knob/Valve Assembly | New Genuine Fuller
A6909 Eaton Fuller Pistol Grip Style Shift Knob/Valve Assembly – New Genuine Fuller – Includes (2) Screws (No...Regular price $37.47 USDSale price $37.47 USD Regular priceUnit price perSold out -
Vendor:My StoreA5021 Eaton Fuller Input Shaft 20787 | New NOS OEM | RT7608LL, RT8609 Roadranger
A-5021 Eaton Fuller Input Shaft 20787 – New (NOS) OEM – For Roadranger RT7608LL, RT8609 Transmissions Product Summary:The...Regular price $394.47 USDSale price $394.47 USD Regular priceUnit price per -
Vendor:My StoreA4493 A-4493 Genuine Fuller 13-Speed "Puck" Style Shift Knob | New NOS | Eaton Roadranger
A4493 / A-4493 Genuine Fuller 13-Speed "Puck" Style Shift Knob – New (NOS) | Eaton Roadranger Product Summary:The...Regular price $177.47 USDSale price $177.47 USD Regular priceUnit price perSold out -
Vendor:My StoreA4491 A-4491 Aftermarket Fuller 13-Speed "Puck" Style Knob | New, Not Plastic | Heavy-Duty Machined Aluminum
A-4491 Aftermarket Fuller 13-Speed "Puck" Style Knob – New, Not Plastic – Machined Aluminum Housing – Heavy-Duty, Vintage...Regular price $38.74 USDSale price $38.74 USD Regular priceUnit price per$57.47 USDSale -
Vendor:truckparts4u.comA40682-1-740 Gearset | Meritor Rockwell AxleTech SSHR R155 37-5 | New
A40682-1-740 Gearset | 7.40 Ratio | SSHR / R155 | Aftermarket | New Product Summary:Part Number: A40682-1-740Brand: AftermarketCondition:...Regular price $1,874.47 USDSale price $1,874.47 USD Regular priceUnit price per -
Vendor:truckparts4u.comA40674-6-529 Gearset | Meritor Rockwell AxleTech SSHR R155 37-10 | New PAI/Excel
A40674-6-529 Gearset | 3.70 Ratio | PAI / Excel SSHR / R155 | Aftermarket Product Summary:Part Number: A40674-6-529Brand:...Regular price $1,874.47 USDSale price $1,874.47 USD Regular priceUnit price per -
Vendor:truckparts4u.comA40674-1-529 Gearset | Meritor Rockwell AxleTech SSHR R155 37-7 | New
A40674-1-529 Gearset | 5.29 Ratio | Meritor SSHR / R155 | New OEM Product Summary:Part Number: A40674-1-529Brand: MeritorCondition:...Regular price $1,874.47 USDSale price $1,874.47 USD Regular priceUnit price per -
Vendor:truckparts4u.comA40306-1-683 Gearset | Meritor Rockwell AxleTech SSHD 41-6 | Genuine OEM
A40306-1-683 Gearset | Rockwell SSHD-R 6.83 | 41/6 Ratio | New Genuine Product Summary:A40306-1-683 is a new genuine...Regular price $1,874.47 USDSale price $1,874.47 USD Regular priceUnit price per -
Vendor:truckparts4u.comA40178-1-529 Gearset – SSHD 5.29 Ratio (37-7) | Meritor Rockwell AxleTech – New Italian
A40178-1F Gearset | SSHD-R 5.29 | Global Drivetrain | 37/7 Ratio | New Aftermarket Product Summary:A40178-1F is a...Regular price $1,874.47 USDSale price $1,874.47 USD Regular priceUnit price per -
Vendor:truckparts4u.comA40172-1-463 Gearset – SSHD Ratio 4.63 (37-8) | Meritor Rockwell AxleTech | New Italian
A40172-1F Gear Set | 4.63 Ratio | SSHD-R Forward Rear | Global Drivetrain | New Aftermarket Product Summary:A40172-1F...Regular price $1,874.47 USDSale price $1,874.47 USD Regular priceUnit price per -
Vendor:truckparts4u.comA40106-5 Gearset | New OE Meritor Rockwell AxleTech RR/RS23-160 R5.63
A40106-5 Gear Set | Rockwell Meritor RR23-160 RS23-160 | Used OEM 8/45 Ratio Product SummaryPart Number: A40106-5Brand: Rockwell...Regular price $1,874.47 USDSale price $1,874.47 USD Regular priceUnit price per -
Vendor:truckparts4u.comA39496-3 Gearset | New Aftermarket Meritor Rockwell AxleTech RS15-120 Ratio 7.17
A39496-3 Aftermarket Gearset RS15-120 R7.17 | New Ring & Pinion for Rockwell Meritor AxleTech Product Summary:A39496-3 is a...Regular price $1,147.74 USDSale price $1,147.74 USD Regular priceUnit price per -
Vendor:truckparts4u.comA38988-4 Gearset | New Genuine Meritor Rockwell AxleTech RS15-120 R-3.73
A389884 Gear Set | Rockwell Meritor RS15-120 | New 3.73 Ratio 41/11 | 1694442C91 Product SummaryPart Number: A389884Brand:...Regular price $1,374.47 USDSale price $1,374.47 USD Regular priceUnit price per -
Vendor:truckparts4u.comA38818-1 Gearset | Meritor Rockwell AxleTech H172 R5.38 | Genuine OEM
A38818-1 Gearset | Rockwell Meritor Axletech H172 | 5.38 Ratio | New Genuine Product Summary:A38818-1 is a new...Regular price $1,347.74 USDSale price $1,347.74 USD Regular priceUnit price per -
Vendor:truckparts4u.comA38280-2 Gearset | New Genuine Meritor Rockwell AxleTech F106 R-5.57
A38280-1, A38280-2 Rockwell Meritor AxleTech Gearset F106-R5.57 | Used Ring & Pinion Product Summary:A38280-1 and A38280-2 refer to...Regular price $1,347.74 USDSale price $1,347.74 USD Regular priceUnit price per -
Vendor:truckparts4u.comA38128-1 Gearset | New Take-Off Genuine Meritor Rockwell AxleTech F106 R-6.14
A38128-1 Rockwell Meritor AxleTech Gearset F106-R6.14 | Genuine Ring & Pinion Product Summary:A38128-1 is a genuine ring and...Regular price $1,447.74 USDSale price $1,447.74 USD Regular priceUnit price per -
Vendor:truckparts4u.comA37428-2 Meritor Rockwell F106 Gearset 4.63 Ratio | 8-37 | New Take-Off Genuine
A37428-2 Rockwell Meritor AxleTech Gearset F106-R4.63 | New Take-Off OEM Ring & Pinion Product Summary:This genuine Meritor/Rockwell/Axletech gearset...Regular price $1,747.74 USDSale price $1,747.74 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.