[davemc]

    I'm on my third 37-670 / -2670 and still feel the easiest way to handle the cleaning and replacement of capacitors and resistors in the RF subchassis is to just bite the bullet and disassemble the thing! Once the unit is removed from the radio (to me, that is the hard part), the remaining disassembly only takes about 30 minutes.  Other threads mention how to remove the bandswitch shaft, and mention the warnings about not rotating the switch wafers after removing the band switch shaft (it is keyed in case you do). This also makes removal of the tuning capacitor for cleaning, and the filter capacitor 37 for restuffing easier.  In my case, a few wires also had to be removed.