I have a W56-B tranny in my 85 22re truck (daily driver) that I am going to have to rebuild soon. I have been thinking about getting the turbo tranny (R151F). Does this tranny do well on the road too? The lower gears and stronger splines sound great for crawling, just wondering if this is a practical set up. Any opinions on w56 vs r151f? Durability? Price? availability?