1057607
The NP435, T18(A) and SM420 are NOT true 4 speeds. The granny low is useless on the road...but great for offroading.
I know on the 420 the first is 7:1, second is like 3.5:1, third like 1.7:1, and fourth of course 1:1 so it wouldn't be a very streetable transmission. For someone...