Redcat Shredder (Newer version) Driveshaft popping out
 

Hello all, I have a redcat shredder and the front driveshaft keeps coming out, every single run. I have put a brand new one in and checked for any bends in the chassis and I can't for the life of me figure out why it seems too short. If I slide the driveshaft all the way one direction, I can almost remove it by hand. The back driveshaft seems like it's a little short too, but I can't pop it out of place. Any ideas?

P.S. have they discontinued the Shredder? It seems to be out of stock everywhere and I love this truck, I would hate to see it go.