4WD Front One-Way Differential Unit made by Tamiya Tamiya indicates this will work with: Nismo Clarion GT-R LM 95 Le Mans contender - TAM44003 Calsonic Skyline GT-R - TAM44004 Kure Nismo GT-R - TAM44005 Porsche 911 GT1 - TAM44006 Nissan R390 GT1 - TAM44007 Avex Dome Mugen NSX - TAM44008 Mecedes CLK-GTR - TAM44009 Pennzoil Nismo GT-R - TAM44011 Raybrig NSX - TAM44018 Suba. Impreza WRC 99 - TAM44019 T0Y0TA Corolla Racing - TAM44022 TGX-Mk.1 TS Chassis kit w/Tamiya Novarossi CX-12 - TAM44027 Suba. Impreza WRC 2001 - TAM44031 Mecedes CLK-GTR Team CLK Sportswear - TAM44012 Raybrig NSX - TAM44013 TG10-Mk.1 Chassis kit - TAM44014 Lexus GS 400 - TAM44016 Rover Mini Cooper Racing TAM44021 Calsonic Skyline GT-R (R34) - TAM44023 Suba. Impreza WRC 99 - TAM44024 TG10-Mk.1 Chassis kit w/Tamiya Novarossi CX-12 - TAM44026 Lancia Delta HF Integrale - TAM44029 Mercedes-Benz CLK DTM 2000 Team Original-Teile - TAM44028 Suba. Impreza WRC 2001 - TAM44034 Ferrari 360GT Daytona version - TAM44035 Porsche 911 GT3 Cup VIP - TAM44036 Raybrig NSX 2002 - TAM44037 Enzo Ferrari - TAM44038 CLK-DTM 2002 AMG-Mercedes - TAM44039 Beams Integra - TAM44040 TG10-Mk1 Chassis kit Long Suspension vesion - TAM44041 PORSCHE 911 GT1 STREET - TAMTA03R-S