A40674-6-529 Gearset | Meritor Rockwell AxleTech SSHR R155 37-10 | New PAI/Excel

A40674-6-529 Gearset | SSHR / R155 | 3.70 Ratio | 10 Spline | Aftermarket

A40674-6-529 is an aftermarket ring & pinion gearset from PAI/Excel for SSHR and R155 axle applications. With a 3.70 final drive (37/10 tooth count) and a 1.960"—10-spline pinion, it’s a reliable replacement for heavy-duty drivetrain service.

Specs & Features

• Part Number: A40674-6-529
• Brand: PAI / Excel
• Application: SSHR / R155 differentials (10-spline pinion)
• Gear Ratio: 3.70
• Tooth Count: 37 ring / 10 pinion
• Pinion Spline Size: 1.960" — 10 spline
• Ring Gear: 40674
• Pinion: 40961
• Condition: Aftermarket (new replacement)

What’s Included

• 1 × Ring Gear — 40674
• 1 × Pinion — 40961
• Note: Pinion nut and installation hardware not included

Fitment Notes

• For SSHR/R155 axle configurations using 10-spline pinions.
• Verify axle model/BOM, ratio (3.70), and pinion spline (1.960"—10) before ordering.

Image Disclaimer

Photos may show the actual item or a representative equivalent. Minor finish/handling marks can occur from supplier packaging.

Warranty Policy

Sold as-is; no warranty expressed or implied.

Location

Mansfield, Ohio — 419-522-3320

Heavy-Duty Solutions — Built to Perform. Trusted to Last.