There are lines that 40’s won’t cut it for sure, and a couple of the ledges are only either LWB with 40”+ or winching. But 99% of the trail was fine with 35’s on a TJ. The SWB helped tremendously where the one JK on 37’s hung up, I was able to climb without touching the skids, and some lines that I didn’t even attempt.Jesus! I was told some 20 years ago that the price of entry to Indy Trail was 40s Nothing I see in those photos leads me to believe otherwise.