John Slade wrote,
>I have recently obtained a Rootes overdrive gearbox whose origins I
>can't identify. It is a later, full synchro box, with a casting number
>71981060 (my late Alpine boxes all have the same number without the 7).
>It has a fine spline on the input shaft, as compared to the coarse
>spline on my Alpine boxes. The adapter (part # 1981083) for the D-type
>overdrive is 3.75" long, with mounts, facing downward, cast into the
>adapter about half way back. There are horizontal ribs which would
>preclude a standard Alpine rear mount from being fitted. The gear ratios
>(shown approximately) are weird...1st 4.15; 2nd 2.3; 3rd 1.5; 4th 1;
>Reverse 3.75.
>
>I would appreciate any info about this set-up. Thanks in advance.
>
>John Slade
These ratios are hiddious, you sure they are correct?
I can see that some rootes cars might have a wider ratio than
our beloved alpines, but these ratios seem unusably wide.
Jarrid Gross
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