Gears and Speedo

Oct 11, 2004 9 Replies

Anyone know of a link (or formula) to calculate the speedo gear needed ... I have swapped in a Ford 8.8 with 4.56 gears into a 99TJ (was 3.73) and running 33 inch BFG's (35's later).



Thanks



BillM


Check the chart at this link:

Here's another link with a caclulator and formulas:

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I used this chart. Just put the new gear in, my speedometer is now within 1 MPH.

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Thanks All -- got it -- 39 tooth!

Morrissey did pass the time by typing:

Do you know how long it took to find this. :)

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Don't ask why. rilly. don't.

Bil,l your time is off 12 hours....

Mike

86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's

"L.W.(ßill) Hughes III" wrote:

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