I have a 59 plate galaxy ghia I have developed a very annoying squeak from the rear offside it comes and goes tends to be worse after a severe bump or if I have a heavy load in the back I think it would appear to be the shock absorber, it has a rubbery sound to it but has anyone else come across this. Had a price for new ones ranging from £19 to £31 although the £31 pound ones were also advertised at £80 elsewhere pays to shop about also anyone know how hard this job is looks like the worst bit will be the internal trim to get to the top mount