hi, congrats for your new (old) 74 RR!
the wheel wells of 74's RR are similarly with my 71 RR...
i mounted on my RR 8x19 on the front and 10x20 rear...both with 4.75" backspace. i want to fit my wheels without any mods on body...
with 235/35 ZR19 and 285/30 ZR20...
and this looks like this...
