What year Ramcharger?
Dodge increased the bolt pattern from 5x4.5” to 5x5.5” in early ‘80’s – so you can either find an older pickup (or car) 9¼” axle or get a custom axle(s) made. If your cutting one down, might be best bet to get aftermarket axles begin with.
The 9¼” axle has very little issues with it. Someone said it cheap and trouble free – but for FMJ’s, it takes a bit of $ to “make it fit”.
Something to consider, if your Ramcharger is a 2*4, the 727 should work fine for you. It if is a 4*4, you will need to find the correct tail housing and output shaft, so it will work correctly.
That said, Gear Venders makes an overdrive that will bolt onto the rear of a 727 once you un-bolt the transfer case from it – which might be something to think about (other than making the Gear Venders OD to fit with the stock floor pan).
BudW