I thought that might be the case. I am going 2” but after I removed the engine from my parts truck the front driveshaft is about 1 1/2” from the cross member. Maybe it can be relocated a little further back on the frame? Seems like it might be important like keeping the frame rails from spreading overtime.

 

I’ve had em off 6+ years. You can add a spacer, but you’ll just drag that support along the trail. The TC support is only like 1.5ft back from the one in question.

 

Again that depends on if you plan to fully flex, I've never had a problem with a standard size (lucky 8) drive shaft and the cross bar in place but I don't fully flex. 2" lift..