I got a doomsday barrage on sale and did very few mods to get it up and crawling with the big boys. It shocked a couple of guys in my group. Sadly towards the end of my crawl my rear end became an open diff instead of locked as it came. I tore it apart when I got home and it turns out the metal axle rounded off the shaped hole in the axle diff and causes it to spin freely in certain situations. Luckily I have a temper on the bench and stole a diff from it but ran into the same problem not but a day later. I believe I read somewhere a redcat diff will fit but idk if it is the Everest 16 or the 10. any help will be appreciated.