There's a good recently revised thread at the following URL on 89-98 Trackick R & P gear ratios that's based on year, body style, engine, & tranny combo, & that also gives the following tooth count:
4.30 gears have a 10/43 tooth count
4.625 gears have an 8/37 tooth count
4.875 gears have an 8/39 tooth count
5.125 gears have an 8/41 tooth count
5.375 gears have an 8/43 tooth count
5.625 gears have an 8/45 tooth count
5.833 gears have a 6/35 tooth count (Calmini)
http://bbs.zuwharrie.com/content/topic,73437.0.html******************************************************************************************************************
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CORRECTED ON SEPTEMBER 14, 2008:
Because of "Topic Merge", the CORRECT URL should be:
http://bbs.zuwharrie.com/content/topic,15579.0.html