  We use molecular dynamics simulations to study a model of the gelation
transition with a dynamic bond forming procedure. After establishing evidence
for 3D percolation as the static universality class, we turn our attention to
the dynamics of clusters at the gelation point, focusing in particular on the
behavior of the diffusion constant D(s) as a function of cluster size s. We
find a very clear power law behavior D(s)\sim s^{-k} with a non-trivial
exponent k\approx 0.69.
