Austin,
Sorry, guess I didn't make it clear. South Bend uses a large, @ 1. 5 or 2" O. D. ball bearing, pressed into the flywheel, instead of the small needle bearings or bushings. They are easily replaced when the flywheel is removed(you could use a hammer and socket if you wanted), but they have a much greater longetivity, load bearing capacity, and help alleviate stress on the transmission input shaft. And the standard bearing, if I looked at it right, is a somewhat common DD203 bearing used in many agricultural and industrial applications, easily available from most parts stores, bearing houses, and industrial supply warehouses. The cost is actually less than the pilot needle bearing. I really like the craftsmanship and quality used in building South Bend Clutches. So much, in fact, I became a dealer for them, and I usually sell one or two a month.
The electronics on the 6. 7 from the 5. 9 takes a great deal of time and cost. Looking at invoices, I beleive the cost from the dealer, wholesale, is just over $5,000. I don't think that's practical, but I'm just charging for labor, so... . The other came off a salvage truck, was purchased much cheaper, and while still pretty high, the fuel savings and performance will pay for the parts over the life of the vehicle. My ranch truck with the H&S system will pay for the H&S programmer and exhaust kit in less than two years in fuel savings alone, not counting how many pasture fires will be prevented.....