Hi Jon

I'm not too sure what exactly your squeak sounds like but my 87 300D is making a squeak too, i think from the front aswell, but I suspect some worn rubber bushings.
Does your squeak coincide with little bumps/irregularities in the road? I hear my squeak driving slowly or coasting (traffic) on good roads. I'm going to monitor mine for a while longer, the car handles and steers fine so far.

Gerard