OK... so I have a problem

[bigboi146]

Ok so after taking everything apart again I think it could be the bearings on the rear diff they didn't look to healthy. But to make sure I wanted to run it again with new motor screws.... Well I made a rookie mistake and put the rear diff in backwards. :( lol. So tonight after class I'll be taking it apart again to flip the diff and to test to see if it was just the motor slipping away from the spur gear.

Thanks everyone for all of the input I greatly appreciate it!