Rear Dana M300 Remanufactured Limited Slip Differential — 3.55 Ratio, 2023–2026 Ford F-350 Super Duty Pickup

When your 2023-2026 Ford F-350 Super Duty's rear differential needs replacement, the US Powertrain remanufactured Dana M315 delivers the confidence of OEM-matched engineering backed by professional drivetrain expertise. The Dana M300 is the heavy-duty rear axle platform found in F-350 Super Duty pickup trucks, and this unit is fully remanufactured in the United States to meet or exceed original equipment specifications for fit, form, and function. The 3.55 gear ratio is precisely maintained through the remanufacturing process, and the 11.8-inch ring gear is inspected and verified to ensure proper mesh geometry and load-bearing capacity. The differential cover is included, eliminating a separate purchase. US Powertrain goes beyond simple rebuild practices by evaluating each unit for known OEM design limitations and applying engineering updates where appropriate — bringing your drivetrain back to service with improvements the original may not have included. The steel and iron construction matches OEM material specifications, and each unit is assembled to exacting tolerances before leaving the facility. Built in the USA, this differential is designed to handle the demanding towing, hauling, and work-duty cycles that F-350 Super Duty owners depend on every day.

OEM Replacement Dana M300 3.55 Limited Slip Differential

Dual wheel and PICKUP applications, this WILL NOT FIT CAB CHASSIS applicatiions

Remanufactured Dana M300 rear differential for 2023-2026 Ford F-350 Super Duty pickup body styles. 3.55 gear ratio, 11.8 IN ring gear, steel/iron construction, differential cover included. Mounting hardware not included.

US Powertrain Remanufactured Dana M300 Rear Differential 3.55 Ratio w/ Cover for 2023-2026 Ford F-350 Super Duty Pickup - Crew, Ext & Std Cab

Remanufactured in the USA to OEM fit, form, and function specifications — restoring full differential performance without the cost of a new OEM unit

Precisely matched 3.55 gear ratio maintained through professional remanufacturing, ensuring correct axle torque split and driveline harmony for 2023-2026 F-350 Super Duty applications

11.8-inch ring gear inspected and verified for correct mesh geometry and load-bearing integrity — critical for heavy-duty towing and hauling duty cycles

Steel and iron construction matches OEM material specifications for strength and thermal performance under continuous heavy-load conditions

US Powertrain engineering review identifies and addresses known OEM design limitations during remanufacturing — improving on the original where possible

Manufactured in the United States by a professional drivetrain and powertrain specialist with dedicated quality processes for axle and differential assemblies

WARNING: This product contains chemicals known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.p65warnings.ca.gov.

2023-2026 Ford F-350 Super Duty - Pickup Body Styles Only (Crew Cab, Extended Cab, Standard Cab) - Rear - 3.55 Ratio

Brand: US Powertrain
UPC: 00810190612095
Axle Type: DANA M300
Color: Black
Cover Bolt Quantity: 14
Cover Included: Yes
Gear Ratio: 3.55
Grade Type: Remanufactured
Material: Steel/Iron
Mounting Hardware Included: No
Prop 65 - Long Label: This product may contain a chemical known to the state of California to cause cancer or birth defects. www.p65warnings.ca.gov
Prop 65 - Short Label: WARNING: Cancer – www.p65warnings.ca.gov
Prop 65 Y/N: Y
Ring Gear Outside Diameter: 11.8 Inch
Warranty: 3YR/36,000 MI


Applications:

• 2023-2026 Ford F-350 Super Duty - PartType: Differential - Position: Rear