You measured your future dogbones (First post) from end to end or from pin to pin ?
Mine is currently 16,8 inch but I'm thinking about stretching it to 17,6 so I can add
bigger motor in the front, and use saddle packs setup at the back
I think it was pin to pin, but I'm not sure if those measurements still stand true with the changes to my chassis, so i wouldn't take those as accurate.