I dunno dude, the distance is gonna change per truck. Why not just put it in the stock position and move your hanger according to that. My stock specs are:
From center of tube to front face of the stock crossmember is 44.25".
From center of tube to end of the frame stubs is 45.5".
![Thumbs Up :thumbs:](https://board.marlincrawler.com/Smileys/marlin/thumbs.gif)
I hope that helps!