Mine I believe are B tbars if I read it right a few months ago, theres I believe a 1" higher height difference than before. OEM keys, yeah, tried swapping them but they were too large in diameter even though they claim to fit. But I did have to trim more off the passenger side than the driver side, so there are some odd differences. It works until I decide to just go the coilover route. Different bars will support more lift than others, can get longer torsion bolts to tighten a bit further as well, and the wear they've had affects it. I guess I just didn't get too lucky when it came to my trucks suspension. But as said, other than a little trimming, they do fit fine. Definitely suggest the trakmotive route, so nice so far honestly. Also, measure from your center hub to the top fender lip, want to say its 19" stock, so however far beyond that is how much you've lifted it.