Transmission Bearing Support

APM Transmission Bearing Support

Purpose-built support for Big Twin 4-speed transmissions when the inner primary is removed for an open belt setup. This bearing support secures the transmission main/shaft and bears the full weight of the clutch basket and related components.

Key Features

• High-strength construction: Cast from 356 T6 aluminum for durable, lightweight performance.
• Automotive sealed ball bearing: Provides reliable, long-lasting support and smooth operation under load.
• Direct fit: Designed to fit 1965 and up Big Twin 4-speed models with rear chain only.

Important Notes

• Not compatible with super nut setups.
• Requires use of the stock main/shaft nut.

This APM Transmission Bearing Support delivers a precision, OEM-style solution to maintain alignment and reduce wear when converting to an open belt primary. Ideal for restorations and custom builds that retain rear-chain drivetrains.