I see the reference in the assembly manual but I have worked on many of them and have never seen one with that configuration.
All the 3200 and 3600 models I have seen are positioned like the 3100 diagram. I can't say the diagram is incorrect but it looks like a lot of monkey motion and does not accomplish anything. Even if you were intending to go to a 1000 point show, I doubt anyone would know the difference. I would run the system down the left side over the axle and be done with it.
Fred


1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine