I Need help tackling redundancy in solidworks motion analysis

I'm currently working on an advanced car differential. I'm done modelling and assembling the product and applying materials to it. It's now time to carry out motion analysis so I can determine certain parameters for the design and also so to carry stress analysis, but I'm seriously faced with redundancy issues. The system is showing me 75 redundancies and as such the motion analysis can not be calculated. Please somebody should help me out on how to deal with the redundancy issues. Thank you.