Bert Transmission 1300 Gen II Aluminum Short Transmission

The Bert Transmission 1300 Gen II Aluminum Short Transmission is a second-generation 2-speed clutchless racing transmission designed specifically for Late Model, Modified, Stock Car, and other circle track racing applications. Engineered with an innovative low-drag design, the Gen II transmission significantly reduces rotating weight, allowing more engine power to reach the rear wheels for quicker acceleration and improved lap times.

Unlike conventional racing transmissions, the 1300 Gen II Short completely disengages the first and reverse gear assemblies while operating in direct drive (high gear), reducing internal drag and component wear. Measuring 19 inches overall length—approximately 2-5/8 inches shorter than a Muncie transmission—this compact unit offers easier installation in race chassis while maintaining exceptional strength and reliability.

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Features

• Genuine Bert Transmission 1300 Gen II Aluminum Short Transmission
• Second-generation clutchless racing transmission
• Lightweight aluminum case construction
• Internal hydraulic clutch system
• Extremely low rotating weight design
• First and reverse gears fully disengage in direct drive
• Reduced internal drag for improved power transfer
• Compact 19-inch overall length
• Approximately 2-5/8 inches shorter than a Muncie transmission
• IMCA Approved for Stock Car, Modified, and Late Model classes
• Designed for dirt and asphalt racing
• Ideal for crate engine and limited engine classes
• Built for maximum durability and race-winning performance

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Gear Ratios

• Low Gear: 2.40:1
• High Gear: 1.00:1 (Direct Drive)
• Reverse: Included
• Neutral: Yes

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Specifications

• Brand: Bert Transmission
• Manufacturer Part Number: SG-1300
• Model: 1300 Gen II Short
• Transmission Type: 2-Speed Manual Racing Transmission
• Application: Circle Track Racing
• Case Material: Aluminum
• Overall Length: 19 inches
• Approximate Weight: 36–37 lbs
• Input Shaft Spline Count: 10
• Internal Hydraulic Clutch: Yes
• Output Style: Slip Yoke
• Shifter Included: No
• Coupler Included: No
• Bellhousing Included: No
• Designed For: Late Model, Modified, Stock Car, Hobby Stock, Dirt and Asphalt Racing

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Package Includes

• Bert 1300 Gen II Aluminum Short Transmission
• Internal Hydraulic Clutch Assembly
• Reverse Lockout Components
• Installation Hardware
• Manufacturer Documentation

Bellhousing, shifter, coupler, driveshaft yoke, and transmission fluid are sold separately.

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Recommended Applications

Ideal for:

• Dirt Late Models
• IMCA Modified
• IMCA Stock Car
• UMP Modified
• Hobby Stock
• Asphalt Modified
• Crate Engine Racing
• Limited Engine Classes
• Custom Circle Track Race Cars

Compatible with a wide variety of racing engines when paired with the correct bellhousing, coupler, and drivetrain components.

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Installation Requirements

Installation may require:

• Compatible Bert bellhousing
• Bert transmission shifter
• Engine coupler
• Slip-yoke driveshaft
• Racing transmission mount
• Crossmember
• Bert Blue Transmission Fluid or approved equivalent

Professional installation is recommended to ensure proper alignment and optimum racing performance.

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Warranty

The Bert Transmission 1300 Gen II Aluminum Short Transmission is backed by a 1-Year Limited Warranty, covering defects in materials and workmanship under normal racing use and proper installation.

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Why Choose the Bert Transmission 1300 Gen II Aluminum Short Transmission?

The Bert 1300 Gen II Aluminum Short Transmission is one of the lightest and lowest-drag racing transmissions available. Its innovative clutchless design, 19-inch compact length, 36–37 lb weight, and ability to completely disengage first and reverse gears in direct drive reduce rotating mass and maximize horsepower to the rear wheels. Built for serious racers competing in Late Model, Modified, and Stock Car classes, it delivers the strength, reliability, and performance needed to compete at the highest level.