Anyone with a 15 T4 put a Highlifter 2" kit on? Did you have to notch out the frame like the instructions say you "might" have to do? Just curious? I'm a newbie, haven't even picked it up yet, waiting on Santa.
I don't know of anyone who has ever had to notch their frame with this kit. And there are a bunch of guys on here who have ran them. You should be fine. Install it and then make sure you have plenty of clearance on your axles and boots. If so, drive it like you stole it!