1. clutch may not be fully disengaging? or synchro's not up to scratch
if internal to the gearbox - dump g/b oil and replace with thicker or better oil - might delay the need to rebuild.
2. worn bushes would also manifest themselve thru shit handling - i owuld start with checking/greasing/replacing any ball joints first - before looking at replacing bushes in the control arms/strut towers etc.
also, there's this greasy shit that goes between caliper pistons and brake pads (or anti-rattle shim) that supposed to help stop brake squeal.
when does it squeal?: hard turning, braking, let off brakes, hit bumps, lazy turning, low or high speed turns?