I am currently building a 2015 Frontier 4wd longbed and am going to swap a frontier M226 into it. Whie I am at it I am gonna install the Deaver 10 leaf pack springs. I know I wont get a lot of travel with the stock shock set up. I also don't want to cute the bed up and put in a bed cage. I have been looking into a cantilever suspension for the rear of my truck. Looks like I will have to relocate the spare tire to the bed but that's not a huge deal because it was gonna happen anyways. Does anyone have experience building or calculating cantilever suspension? I found a thread on here but it was aimed at swapping in the Titan M226. I plan on keeping the springs under the frame and hoping to get 14 -16 inches of travel. Is this a realistic number? Any think will help.