rear end ratio

[arc40s]

please advise the available rear end ratios for 1949 thru 1953 Ford, Mercury, Lincolns.
Also # pinion teeth and ring gear teeth for each ratio.
Thanks

[rotorwrench]

The parts catalogs don't list the tooth count for the Dana 41 & 44 axles in the Mercury cars. Ford axles don't list them either. The Lincoln cars had there own heavy duty Dana axle and they are near impossible to find new parts for but they were heavy enough that most still survive intact unless water gets in there.

Ford ratios were 3.73:1 (most common), 4.10:1, 3.54:1, 3.31:1

Mercury and other Dana series
Dana Spicer 41 were 3.91:1 (most common), 4.27:1, 4.55:1
Dana Spicer 44 were 3.92:1 (most common), 3.91:1, 4.27:1, 4.55:1, 3.31:1, & 3.54:1

Lincoln cars were basically the same ratios as the Mercury car Dana 44 except there was no 3.54:1 or 4.55:1 ratios available.

[bk53]

my 53 dana 44 has 19 spline axles. ringpinion.com has a lot of detail on their site but you'd need to play around by model to get all you are asking.

bill

[donald1950]

any ides what spedo drive gear for a ford with a 3.54 ratio?

[toby]

From the Ford Shop Manual-

Tire size and Speedometer gear ratio

Tire size- 6.00 X 16= 3:54- 18
Tire size- 6.00 X 15= 3:54- 18
Tire size- 6.50 X 16= 3:54- 18
Tire size- 6.70 X 15= 3:54- 18
Tire size- 7:10 X 15= 3:54- 18

[donald1950]

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