i got a tg hydro assist set up with a 1.5 ram from a buddy(didn't buy it, it was given to me after he swapped to a bigger ram). i run 37's, stock pump, have a big tranny cooler on it, and stock res. never had any issues with it. its been on for almost a year, has had two trips to rubicon on it and a lot of runs up freeway ridge. if your looking for hydro assist and don't want to spend a ton of money, piece together your own kit. if i had to pay for a kit, i would piece together my own. that way you can buy a quality u.s. made ram. some good links on the forum on how and where to go. just my