Quote Originally Posted by 40FordDeluxe View Post
I also found out that ZF6's were put behind the 8.1's as well. The ZF6 has another gear between 3 and 4 with 5th being direct and 6th being OD. That 3-4 split on NV4500's is a big one on all the ones I've driven.
So what you're saying, is that even with the Gearvendors' NV4500 the third to fourth shift is still revs too high to revs too low?
Did I get this right?