Daytona SP3 incorrect differential?

Hi guys just finished this Daytona sp3 and I always had some tension during hears and after completing and rolling it around the LT Cardinal peice snapped I went to investigate and realised that rear wheels are spinning opposite to each is this my problem or is this normal? In the video you can see I’m spinning it forward but the opposite wheel is in reverse submitted by /u/ibzz_04 [link] [comments]