Emailed a local shop and this is what they came back to me with
Yes you are correct that the trx4 trucks have a different front suspension then the others. There is really only one good way to lift the front of those trucks. That is with the bilstein 5100 series height adjustable strut. Basically the factory trx4 strut is .7" taller then a stock strut so if you try to put a level kit spacer in it over extends everything and can lead to vibrations and other issues. The bilstein strut replaces the longer factory strut and gains about 2" over stock height. "
5100's as some suggested seems to be the way to go