You should also have the relocation bracket for the bottom link post on the drivers side too to make the links the same length.
(Images linked from DBOR's web site and obviously for a LHD)
I have the Poly links on mine front and rear and found the rears were about 2in to long, so I bought a tap to suit and simply cut 2in off the tube and continued the thread down the tube further.
Not sure if you can do the same with the JKS ones, but they look to be a similar constuction.