USA Standard Gear ZTNP15128 Transfer Case Rear Output Shim Kit for NP228 NP229

The USA Standard Gear ZTNP15128 is a precision rear output shim kit designed for New Process NP228 and NP229 transfer cases. This essential installation component provides the proper shims needed to set correct rear output shaft end play during transfer case rebuilds or maintenance procedures.

Key Features:

• Precision-machined shims for accurate end play adjustment
• Fits NP228 and NP229 transfer cases commonly found in AMC and Jeep vehicles from 1980-1991
• Also compatible with NP203 and NP205 idler gear applications
• Helps eliminate excessive rear output shaft play and vibration
• Essential component for proper transfer case assembly
• Manufactured to meet or exceed OEM specifications

This shim kit installs between the speedometer drive gear and rear output bearing to control axial movement of the output shaft. Proper shimming is critical for smooth operation, reducing noise and vibration, and ensuring long transfer case life. USA Standard Gear products are precision-manufactured and tested to ensure reliable performance in demanding drivetrain applications.