The Volvo brand front door speakers have blown and I'm struggling to find exact sized replacements.

The diaphragm measures 135mm across and the screw holes are 145 mm apart.

Any make/model numbers you could recommend?

erm pretty much the same i would suspect as the 740. though i have made my own adapter for the front doors which were 13cm and the rears also which didnt require adapters.

i would have a look on caraudiodirect.com or co.uk for some 13cm coaxial speakers, i'd recommend infinity for clarity which should be around £30/40 or if you want real quality search around for JL but be expectant to pay £100 ish for those.

pm me if you need any more help/info.

Matt

you can also try crutchfield.com. their speakers are just slightly off also, i had to fiddle around with the door openings to get them to mount on my 850. the dash ones were spot on as were the rear door and parcel shelf. just the fronts were off. good luck and keep us posted.