Brinn BR2 Short Aluminum Transmission 19-inch 70002

For drag racing, circle track, and high-performance street applications, transmission weight and packaging are critical to vehicle balance and acceleration. The Brinn BR2 combines a featherweight 50-pound aluminum case with proven mechanical design, delivering the straight-line performance you need without sacrificing durability. Whether you're building a dedicated race car or upgrading a performance engine, this short-case manual transmission eliminates excess bulk while maintaining the reliability serious competitors demand.

The BR2's gundrilled input and output shafts reduce rotating mass and stress concentration, while cryogenically treated gears and shafts provide hardness and impact resistance far beyond standard units. The reverse idler gear automatically disengages during direct drive, eliminating parasitic drag and wear on reverse components. Dog clutches enable quick, positive shifts without chatter, and the internal hydraulic clutch system integrates seamlessly into most race-oriented chassis setups.

• Transmission type: Manual
• Case material: Aluminum
• Overall length: 19 inches
• Weight: 50 lbs
• Forward speeds: 2
• Reverse: Yes
• Low gear ratio: 1.88:1
• Reverse ratio: 2.29:1
• Input spline: 10-tooth SAE
• Output spline: 27-tooth
• Clutch: Internal hydraulic
• Shafts: Gundrilled
• Gears: Cryogenically treated
• Fitment: Universal (custom bellhousing required)
• Installation: Custom fabrication recommended