during the 42RE overhaul I used the Sonnax parts (exc the detent check ball since the existing bore was not worn out) and replaced the O/D-lockup solenoid pack (also swapped the gov pressure manifold using the aftermarket version using a 4L60E EPC solenoid); during the valvebody field strip the 3-4 spring was intact and undamaged but during a test drive the OD light did not flash (here's what im experiencing - when hittin the OD off 2 light up the OD lite the TCC (converter clutch) unlocked and locked and when hittin the switch again its doing the same (unlock and lockup) and still no codes (im concerned that its the OD dash switch asm - did a fuse inspection @ the junction block where no blown fuses)
also the TV cable is adjusted 2 spec; during the recent overhaul back in March 2017 the O/D piston housing (bolted 2 the trans case) - the internal filter (located in the OD piston) was sprayed with carb cleaner and it was not plugged up (this filter is the one I would not pull out since a YouTube video detailed a repair of a similar 42RE when the filter is out (cause is no overdrive)
regarding the O/D housing (which is a 2WD) the clutch pack was upgraded 2 48RE/A518 specs (including a TransGo overdrive spring assembly (800 lb spring), twin groove OD direct clutch drum (10 discs), A518 5 pinion planetary, and the 5 disc upgrade (overdrive clutch)
