Drivetrain› Differentials and Rear-End Components
Revolution Gear & Axle
Revolution Gear & Axle GM 14-Bolt 10.5in 40 Spline 4.10 Ratio & Down Full Spool
SKU: R01K 75-2023-40
Moderate — 2–4 hours
Description
Part #: 75-2023-40
MIA's Description
Spools are not recommended for daily driving due to the added stress they place on the drivetrain. This component is manufactured in India.
Fitment
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Specifications
| Brand | Revolution Gear & Axle |
| Part Number | R01K 75-2023-40 |
Videos
3.42 vs 4.10 Gears (Part 2)
EVERY 14 BOLT AXLE NEEDS THIS - Stage 8 Locking Fasteners
GM 14 Bolt Re-Gear and Spool - Baja 1000 tested.
GM 14 Bolt Differential Explained - How to Identify | Differential Tech Tips
How to Regear a 14 Bolt Axle - EASY STEP BY STEP
GM 10.5 14 bolt mini spool install overview
14 Bolt Axle Regear And Locker Install - JK 1 Ton Swap Video Series
The Benefits to Changing Your Gear Ratio to Accommodate Taller Tires
40 Spline 14 Bolt Spindles Overview - Crane Axle
GM 14 Bolt Axle - Pilot or Straddle Bearing Information
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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