I have a 1992 240 Wagon, 5-speed - ABS and air bag. It's in pretty good shape.
Originally, this came with limited slip diff, but essential components of that broke and the rear axle was replaced with an axle from a non-ABS car. Unfortunately, this happened at a time when I was unable to pursue the repairs and have them fixed properly. I'm not sure what year or model axle is on the car now, aside from being late 80's.
Now, the car drives reasonably, but nothing that runs off the diff signal works properly. The speedo does register about 30 km/hr at 3,000 RPM in 5th gear, which is a bit low. The odometer isn't useful and the cruise and ABS don't work at all.
The local mechanics tell me that if they replace the reluctor ring (with a Volvo part they've identified), the diff output will match what the computer expects to see. Cost looks reasonable compared to the other options.
I'm of course concerned that I don't once again get involved in a repair that won't work properly. Is there a way I can be sure, prior to putting wrench to car, that this reluctor ring will actually work (i.e.fit) with the diff presently on the car?
The ideal for me would actually be to get a limited slipdiff or axle that works with this car, in case anyone just happens to know of one....
Thanks for any comments. Patrick Keenan