BRM MODEL CARS S-139ASuspension kit: S-136A1 screws ? springs 4.0mm ? aluminum nuts+O.R. - 3.8mm spring mounts ? aluminum bar+photo-etch
BRM MODEL CARS S-139BSuspension kit: S-136A1 screws ? springs 3.0mm ? aluminum nuts+O.R. - 2.8mm spring mounts ? aluminum bar+photo-etch