This is the replacement Rear Gear Case set. It is for the following Tamiya cars : Celica GT-Four Rally, Skyline GT-R Nismo, Mercedes-Benz 190E Evo.II, F0RD Escort RS, Schnitzer BMW M3, and the Lancia Delta HF Integrale. The plastic parts tree which includes one each of the following parts: B1- Resistor mount B4- Diff. front housing(holds diff in case) B2- Motor mount B5- Rear suspension mount B3- Pinion spacer B6- Upper gear box half B7- Lower gear box half The B parts are made of Red plastic. Also A screw bag for mounting and joining the gear box which 22- 3x10 S/T screws 2- 3x14 Step screws 2- 3x15 S/T screws 2- 3x15 machine screws 2- 3x6 machine screws 2- flange tubes 2- press nuts 2- 3x3 set screw 5- 3mm washer gab5/23/94 &