My MH normally runs at about 195 on the flats and will get up to about 220 when climbing grades. That is pretty normal and not much to worry about. 235 is a bit high, but if it comes right back down if you slow your assent or reach the top, I don't see it as much of a problem. that is assuming that those temps are while towing your Jeep. If that is without a tow, you will have issues when you add 4000 pounds of dead weight behind you. If your trans cooler is part of the radiator, you should install a separate cooler so that the trans is not pushing heat into your engine coolant. Would be better for the trans as well. My rig has separate trans and oil coolers mounted in front of the A/C condenser.