Do you have the stock setup shock mount locations? If not, that can vary the amount of spacers needed.

I can't remember if the manual says 1 or 2 in the rear but I think its 2.
If that's the case, you are pulling the shocks apart to add the 2nd spacer.

Those shocks are made for the stadium truck and sct too so they are a little too long for the buggy without proper travel restriction.