I think we are going to drive with the current converter and rear gear this summer. I made some inquieries about a tighter converter, or more temptating option might be a lock up converter/trans. We really don't need much more speed, already pretty close to having to install double chutes. One problem is, that we have a Dana 60 with 4.10 pro gears, and I have no idea about longer pro gear availability for the Dana.