2500?
To lay on 24s is not no easy task.
Mcguaphys makes a kit with spindles in the front which would be my recommendation if you were going with a static drop.. for a dodge go to
http://www.slammed1suspensions.com/ the owners name is brian and can get you the best deal there can be gotten on Mcgaughys kits for rams. plus Excelent customer service..
If you wanted to bag it to lay on 24s .. your lookin at narrowing your axle, tubbing and notching your bed. changing the whole front suspension. relocating air breather, front computer, battery , fusebox the list goes on and on...
If you want it to be a delivery truck.. get some smaller wheels .. the gas prices got to hurt you runnin 24s ? LOL..
Good luck.