Crane Axle Revolution GM 14-Bolt Inner Seal Kit - 40 Spline
Crane Axle Revolution GM 14-Bolt Inner Seal Kit - 40 Spline
Crane Axle Revolution GM 14-Bolt Inner Seal Kit - 40 Spline
Crane Axle Revolution GM 14-Bolt Inner Seal Kit - 40 Spline
Crane Axle Revolution GM 14-Bolt Inner Seal Kit - 40 Spline
Crane Axle Revolution GM 14-Bolt Inner Seal Kit - 40 Spline
Crane Axle Revolution GM 14-Bolt Inner Seal Kit - 40 Spline
Crane Axle Revolution GM 14-Bolt Inner Seal Kit - 40 Spline
Crane Axle Revolution GM 14-Bolt Inner Seal Kit - 40 Spline
Crane Axle Revolution GM 14-Bolt Inner Seal Kit - 40 Spline
Crane Axle Revolution GM 14-Bolt Inner Seal Kit - 40 Spline
Crane Axle Revolution GM 14-Bolt Inner Seal Kit - 40 Spline

Crane Axle Revolution GM 14-Bolt Inner Seal Kit - 40 Spline

CAREV1440

$225.99
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Shipping calculated at checkout.

The Crane Axle Revolution 14 Seal System is designed to properly seal GM 14-Bolt steering axle assemblies using 40 spline axle shafts. This system replaces the factory carrier bearing preload spanners with precision-machined seal housing spanners that incorporate an internal seal location. By relocating the seal inward where axle shaft movement is minimized, the system improves sealing reliability while helping keep gear oil contained and contamination out of the differential.

This design is especially beneficial for steering 14-Bolt axle builds where traditional sealing methods struggle with axle shaft movement and long-term durability. The included axle guides simplify installation by helping align the shaft through the seal during assembly. No machining or custom fabrication is required, making this a direct replacement upgrade for properly configured 40 spline GM 14-Bolt steering axle setups.

Includes:

  • (2) Revolution GM 14-Bolt Seal Housing Spanners
  • (2) Revolution GM 14-Bolt Inner Seals
  • Thread sealant
  • (2) Axle guides

Important Note: For 40-Spline Axles Only

Specifications 
  • Designed for GM 14-Bolt steering axles
  • Fits 40 spline axle assemblies only
  • Replaces factory carrier bearing preload spanners
  • Internal seal positioning for improved sealing performance
  • Precision machined from 1018 cold rolled steel
  • Includes axle guides for easier shaft installation
  • No custom machining required
  • Made in the USA
Fitment 
Make Model Year Range Axle Application
GM Custom Off-Road Applications Universal GM 14-Bolt Steering Axle
Chevrolet Custom Fabricated Axle Builds Universal GM 14-Bolt Steering Axle
GMC Custom Fabricated Axle Builds Universal GM 14-Bolt Steering Axle

Fitment Notes:

  • Designed specifically for 40 spline axle shafts
  • For steering axle applications only
  • Not compatible with 30 spline or 35 spline setups
  • Requires GM 14-Bolt carrier preload spanner configuration
Tech Insight 

Traditional GM 14-Bolt axle sealing systems were never designed around steering axle use. In steering applications, increased shaft movement and articulation can quickly compromise conventional sealing methods, allowing contamination into the housing and causing fluid leaks over time.

The Revolution 14 system relocates the sealing surface inward where axle shaft deflection is significantly reduced. This creates a more stable sealing environment and improves long-term reliability in high-articulation off-road and competition applications. The included axle guides also help prevent seal damage during installation, which is especially important with large 40 spline shafts.

Installation Guide
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