DC-8 JT3D-3 Series 54s also had inflight reverse on the inboards.
I saw it on my First Officer OE and never saw it again. I didn't want to see it again, either. Each DC-8 series had a bold face memory item procedure for stowing reversers. Some DC-8 reversers were pneumatic and some were hydraulic in operation.
UPS still operates a fine looking fleet of DC-8s and pays people quite well to fly them.