3MO TXL in line 6 speed sequential gearbox

3MO TXL IN LINE 6-SPEED SEQUENTIAL GEARBOX

500 N·m torque capacity thanks to its cassette design with 89 mm center distance between primary and secondary shafts, and gear widths of 20 mm (1st to 3rd) and 17 mm (4th to 6th). For drifters, rest assured — the TXL gearbox can handle up to 1,000 N·m of torque. Tested and proven over three full seasons of the French Drift Championships!

• Compact dimensions make it easy to install in tight spaces: BMW, Ford Escort Mk2, Mazda, Caterham Seven, etc.
• Affordable budget

The TXL features three inspection ports to allow for regular and accurate monitoring without needing to open the gearbox.

To optimize gear ratios based on your application and technical specifications (engine setup, tires, etc.), multiple gear ratios are available for each gear, as well as three different input shaft ratios. The 6th gear is direct drive (ratio = 1), just like a traditional BMW gearbox. This helps reduce gearbox size and improve engine efficiency in top gear.

In response to customer demand from rallycross and off-road racing, we have developed a 4-wheel-drive version, available with or without a central differential. The TXL transfer case allows the use of standard front and rear axles even when the engine is rear mid-mounted. With its streamlined architecture, the 4WD TXL version brings a breath of fresh air to the T3F, TT, and T3 markets.

For each project, we design and manufacture a custom aluminum adapter plate to connect the TXL to your engine while retaining the original bell housing. This allows you to keep most existing components and reduce costs: starter motor, ring gear, flywheel, clutch, etc.

Technical Specifications

• 5 or 6-speed sequential dog box gearbox + reverse gear
• Max engine torque: 500 N·m – Drift use: up to 1,000 N·m
• Gear width: 20 mm (1st to 3rd) and 17 mm (4th to 6th) – Shaft spacing: 89 mm
• Choice of input shaft ratio
• Customizable gear ratios from 1st to 5th
• Output via main shaft – 6th gear is direct drive (ratio = 1)
• Splash lubrication with optional oil cooling circuit
• Clutch shaft: 1” x 23 splines, 10-spline BMW option available
• Contactless barrel position sensor (0–5V)
• Inspection ports
• Reverse gear unlock cable
• Weight: 27 kg

Options and Accessories

• Ø52 mm hydraulic clutch release bearing + braided hoses
• 4WD version with or without ZF-style ramped plate LSD (Limited Slip Differential)
• Output flange options: BMW flector Ø96 mm, Löbro Ø108 mm, Dana Spicer, Atlas, etc.
• Gearbox cut-off kit with proximity sensor
• Adapter kit for OEM bell housing
• Gear lever kit
• Gear position display
• Reinforced tripod flange kit