  We prove an equidistribution result for the Satake parameters of Maass cusp
forms on $GL_3$ with respect to the $p$-adic Plancherel measure by using an
application of the Kuznetsov trace formula. The techniques developed in this
paper deal with the removal of arithmetic weight $L(1,F,Ad)^{-1}$ in the
Kuznetsov trace formula on $GL_3$.
