My 1982 245 has about 245K on it now and I've got some rear end noise. I've replaced the rear wheel bearings and that helped some, but the noise continues. I believe the drive gears have just had it. I haven't been able to turn up a rear end with the ratio I need (3.54), while I have come across several acceptable-mileage cars without readable ratio tags. I know there are four different ratios available. What I'm wondering is if someone might know which models would have the ratio I need. I look first for a car like mine--245 wagon with M46 transmission--but haven't found any. Do you know if some other model would have that same ratio?