Your originals are correct for all sedans. there is no difference between US and cdn cars. The repro one you got is a direct replacement for a wagon or elcamino. Its probably the only one made tho, repro stuff is so inaccurate its pathetic. just cut it and use your old rubber and connector, or just build your own wire.
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Beaumontguru
MY BEAUMONT HAS 4 STUDDED TIRES AND 2 BLOCKHEATERS......AND LOTS OF OIL UNDERNEATH. The other one has a longer roof.