Question about 1999 Suzuki Vitara

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Diff.info on the 1.6 vitara.

Gearing ratio of the differential

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Hi johnnyblaze2, if you want to determine the ratio without opening up the differential, check in the manual that came with your vehicle or there should be a tag on the differential itself good luck let me know what you find

Posted on Nov 11, 2008

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The size of the crown wheel gear. Ford 9 inch is a strong diff used in V8 models. The 8.8 is slightly smaller but is still a good diff. The gear ratios will probably be different. Manual gearbox cars have different ratios to automatics. The higher the ratio, the faster takeoff you will have but lower terminal speed. At high speeds , the high ratio differential will cause high engine revs and poor fuel consumption. A low ratio will be mediocre takeoff but allows high top speeds and lower engine revs. (Good for fuel economy if you are mostly highway driving)

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When my 4x4 engaged on dry pavement the passenger side tires lock. we change the rear differential recently. now the vehicle has the problem with the wheels locking. we did everything correctly while...


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I want to replace the rear diferential gears on my 1990 jeep wrangler how do I get the ratio


There is usually a tag on the rear cover with the ratio stamped on it. If the tag has been lost you count the number of teeth on the ring gear and divide that by the number of teeth on the pinion. That number is the ratio, expressed as (your number:1) example: 3.73:1. Ive seen some ring gears that have the ratio stamped on the edge. Won't hurt to see if yours is.
Remember...the rear gear ratio needs to match what you have at the front or you will destroy the transfer case. It's also better to replace the entire differential drum to drum as setting up a gear set is a precision job that can get expensive, especially if done incorrectly.
Whatever you do, don't forget to fill it with lube when finished!!!!
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You need to get under the vehicle and check the tag which has the diff ratio printed on it. The ratios front and back will be the same but look at both tags.

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Differential ratio


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