Bob: Here is a table of three ratios with performance description provided.
To your question, a taller rear-end is a higher gear ratio which is a smaller
ratio number; i.e. 3.545 is a taller rear-end than a 3.909.
Crown / Ratio Performance
Performance
Pinion _____ Improvement
Description
41 / 10 4.100 100.0 % 4.9 %
quick starting
43 / 11 3.909 - 4.7 % 100.0 % all
around
39 / 11 3.545 - 13.5 % - 9.3 %
cruising & good gas mileage.
--Scott Morris; Simcoe, Ontario, Canada; '60 MkI BN7 & '62 MkII BT7
Bob Spidell <bspidell@comcast.net> wrote: << Question for the general car gurus
out there: Is a taller rear-end a higher gear ratio, or lower. That is, is a
3.54:1 rear-end "taller" or "shorter" than a 3.9:1? I've heard both ways, just
wondering which is the correct lingo. >>
J. Scott Morris - Keep Smiling, Murphy Lives
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