Upon further inspection my center diff is toasted. This would be the second center diff in as many weeks. Literally ripped the center diff in half last week. What am I doing wrong 7-10-5 fluid. This time the center diff rear out drive pulled the casing sleeve from the diff and of course ripped up the gears. Which replacing the diffs isn't a biggie. I have atleast 6 spares however I wont to quit tearing them up. I had been having problems with the rear being really loose. The power seemed to be split 70/30 to the rear. I had been working to get it to be more 60/40 towards the front. Now this is my backup (bash) Truggy so I can do allot of experimenting with it. My race Truggy is in mothballs waiting for spring.