Blue Clutch Spring

[t2boats]

in the FG 4x4 conversion kit i got for my MB, they supplied a blue clutch spring, which i've fitted to anorther car. anyone know what the rpm bite is on it? cos it's really high.... seems much higher than the red 8000rpm spring

 

[Sharkey]

i read something about it coming in at 7500rpm and fully engaged at 8500rpm. the red is coming in at 8000rpm and fully in at 9000rpm.