[Ron Ramirez]

I've never seen a 37-116 that had any sort of wood blocks on the side of the chassis...and I've had a few 37-116 sets pass through my hands.

These originally used four special "J" bolts to hold the chassis in place for shipment to the dealer, and ultimately to the original purchaser. These "J" bolts hooked over the studs which stick out on the sides of the chassis, and then passed through holes in the wooden supports under the chassis. The "J" bolts were supposed to be removed by the dealer when the radio was delivered to the original purchaser. Most were, and most were tossed afterwards. But I once owned a 37-116 that was in very poor shape...that still had the "J" bolts holding the chassis in place. I kept the bolts, they are around here someplace.

You now know, Morzh, that two of the control shafts do indeed take one (each) of those rubber spacers.