Ok, cool, it widens my search then. Want a 42RH over a 46RH. Lower ratio 1st gear than the 46 will work great with a mild 318 and 3.73 rear gears, plus its smaller and lighter, and can be built to be just as tough as a 46RH.
Is it more common to find a 42RH behind only a V6 truck engine? Or were they behind V8s too.