A40172-1-463 Gearset | Meritor Rockwell AxleTech | SSHD Ratio 4.63 (37-8) | New Italian

A40172-1 | Meritor-Rockwell-AxleTech SSHD-F / 44K GAWR Gearset | 4.63 Ratio (37/8) | New Aftermarket – Italian

New Aftermarket A40172-1 (also A40172-1F) — Ring & pinion gearset for Meritor / Rockwell / AxleTech SSHD-F and 44K GAWR (44,000 lb) forward rear axles. 4.63 ratio (37 ring / 8 pinion teeth) with 2.620" – 26 spline pinion. Precision-machined by Global Drivetrain (Italy). New and ready to ship from Discount Parts Exchange (DPX) in Mansfield, Ohio.

How to Calculate Gear Ratio: Divide the number of teeth on the ring gear by the number of teeth on the pinion gear (e.g., 37 ÷ 8 = 4.63). This is the standard method used by Dana Spicer / Meritor.

Call to confirm availability: 419-522-3320

Key Specifications

• Part Number: A40172-1 (also A40172-1F)
• Manufacturer: Global Drivetrain (Italy) – Aftermarket
• Type: Ring & Pinion Gearset
• Gear Ratio: 4.63 (37 ring / 8 pinion teeth)
• Ring Gear: 40172
• Pinion: 41467
• Pinion Spline: 2.620" – 26 spline
• Application: SSHD-F and 44K GAWR (44,000 lb) forward rear differentials
• Condition: New Aftermarket
• Warranty: Sold As-Is, No Warranty

Applications & Fitment

Compatible with Meritor-Rockwell-AxleTech SSHD-F and 44K GAWR (44,000 lb) forward rear axle configurations.

Important: Verify spline size (2.620"–26) and ratio/tooth count before installation. No hardware or pinion nut included.

What’s Included

• 1 × Ring Gear – 40172
• 1 × Pinion – 41467
• No hardware or pinion nut included

DPX Drivetrain Tools Hub

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Road Speed Calculator • Gear Ratio Charts • PTO Shimming Guide • Full IPL Library →

Shipping / Location

• Ships from our Mansfield, Ohio warehouse (419-522-3320)
• Parcel or LTL options available based on packaging and weight
• Warehouse Bin Location: DPX_OH_BR549_MRA

Heavy-Duty Solutions — Built to Perform. Trusted to Last. Discount Parts Exchange (DPX).