Are specific manufacturers suspension designed to work together, like if I were to install a tci rear coil over and and a tcp front coil over (non-MII) would they not be working to their max potential. Or are they working as two separate identities? Thanks for all your help

 

The front and rear suspensions will always act seperately because they are two seperate entities. Getting them to work together is in the geometry springs/shocks and setup. Whether they are from the same manufacturer isn't going to be as important as getting them set right.

That said, if they are both from the same vendor you only have to call one place for help/parts.

 

The tci kit is a mustang 2 kit they just don't call it one.Honestly i wouldn't use either of them the rear kit the lower links look too thin and its got a pan hard bar not a watts link.