Looking at the Yokogawa label on the back is interesting. All the fasteners are metric so I would suspect it may be a designed and built in Japan. Delicate precise and crafted.
By Comparison the Cambridge boxes are like a Series Three Landrover. Tough Rugged and providing the wiring doesn't catch fire a good thing
Never had trouble with the wiring in the one I had but I was sure glad it didn't have the POS factory diesel or thirsty petrol under the hood when I got it.
Instead a trusty 186 CUI straight 6 Holden that never gave trouble and pulled like a fourth former.
An aftermarket overdrive and Rover 90 4.3 diff heads made it reasonably economical on the open road.
I got it cheap as someone had tried to shoehorn a ZF gearbox into it and that went for flying lessons and a handbuilt 2A box went into it. I used whatever good parts I could find to build the box including a pair of unmatched 2
nd gears that howled like a tomcat until I ditched the "special" oil brew I had in the box and let them bed in properly until they were as quiet as a pussycat.
Got the std rims cut, widened to 8" and galv'ed and ran 245's on her as there's a 50 km beach close with treacherous sands where we spent many trips fishing and never got stuck.
Coming back on day trying to beat the tide a V8 Blazer zoomed past us only for us to catch him a while later as his Blazer was swamped in the surf and written off.
Fun times.