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Old 01-28-2010, 11:11 PM   #1 (permalink)
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Someone asks: Metro/Swift taller transmission swap... is there a 3.28 final drive?

Someone e-mailed me this question:

I went to buy what I thought was a 3.54 transaxel and when I checked the ratio by turning the input shaft in 4th gear I found that it was a 3.28 ratio. I use the 3.28 number because I searched and found a reference to this ratio on a swift for sale in England. Have you heard of this ratio?
The lowest numerical (tallest geared) final drive I've heard of is the 3.523 from the 1.3L 4-cylinder SOHC 8-valve car.

I wonder if you're seeing figures for the new Swift that's available in Europe, and which is a completely different car than the Metro/clones we had here until 2000(ish).

As for getting the 3.28 result comparing input to output revolutions, I'd want to double-check that to be sure.

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Old 01-29-2010, 04:09 AM   #2 (permalink)
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Fourth gear on these is an overdrive. 3.524 x 0.914 = 3.22. Pretty close to 3.28.
Counting the ring/crown gear teeth is more accurate. Just pull off the triangular plate and start counting. 3.52 has 74 teeth.

1989-1994 US Swift/Metro 5-speed:
1st = 3.416 (3.583 1998+ 1298cc)
2nd = 1.894
3rd = 1.280 (1.375 non-US GTi)
4th = 0.914 (1.030 non-US GTi)
5th = 0.757 (0.870 non-US GTi)

Reverse = 3.273

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