I've been working out how to get Mazda RX-7 callipers onto a Volvo strut. I've now confirmed that it's possible, but a pig of a job.
These are the brackets I had made up. They're made of steel, and threaded with a fine pitch M12 hole
How they bolt to the strut
The problem with the whole setup is that on a 340, the calliper is threaded. On the Mazda, the strut would be. SO for this adaptor to work, both sets of holes need to be threaded for it to go together.
If you bolt the adaptor to the leg, it's not possible to get the bolt through from the disc side, through the calliper to the adaptor.
It IS possible for it all to go together, but it really gave my brain a working doing it! I had to put everything loosely together, then reach inside the disc and finger tighten the bolts to the adaptor. Luckily, I have small girly hands. I don't think I'd have been able to do it otherwise!
Once the bolts had been threaded finger tight, there's JUST enough room to get a spanner on them. If you modify it.
Then, once all the strut had been bolted together, I tried it out with my 14" volvo 480 alloys. they DO fit, but clearance was literally around 1mm. I wasn't comfortable with that so decided to get some 15" alloys.
Got a set of alloys off an MR2, with fairly good tires. The offset is higher, (45 I think) which meant that after having paid for fitted all the alloys at the guys house, I realised, whilst pulling out of his drive, that they were rubbing on the rear leaf spring/shock mount. DAMN.
Swapped back to the 480 alloys on the rear for the drive home. The fronts were much better balanced though, and I no longer have steering wheel shake at 60mph+.
There's nothing that can't be fixed with an angle grinder. Taking a few mm off the rear mount means that the back alloys now fit. (Although clearance is tight!)
An interesting thing about the MR-2 wheels is that the rear tyres are wider than the front. SO i have lots of grippy rubber on the back; Yokohama Advan tyres.
Here's how she now sits. I am toying with the idea of a spacer for the wheels, but it will reduce the amount of screw thread for the nut to hold onto, so not sure.
