Hey all, so I have to replace my wife’s front lower a arm. In comparing I found the RT pro 2” forward offset that is compatible with basically all 14-16 aces. I also found the Wart Hog 1-1/2” forward off set. However , the wart hog shows it as only being compatible with 14-15 325 and 570s. Why would one be compatible with all three models and the other with only two of them? The wart hog are about 1/2 the price.. Thanks for any insight in advance !