Cruising RPM was transmission leak

["David Whitney" <david.whitney@xxxxxxxxxxxx>]

Your cruising RPM depends on more than the 727's gearing.  It also depends
on your rear end gears, wheel diameter and tire size, and to a lesser
degree on any modifications you may have made to the engine.   Ported heads
and dual exhaust, for example, will lower your cruising RPM perceptibly by
increasing the engine's efficiency and allowing more power to the rear
wheels at a lower engine RPM than would otherwise be the case.  All of the
variables are customizable to an extent by mixing and matching.  For
Imperial owners there are quite a few rear axle gears to choose from, all
of which fit inside the 8 3/4 " housing.  I don't know enough about Bristol
to tell you what your options are.

Regarding the TF with overdrive -- there are a number of vendors on the web
who can advise you regarding whether you can use the A518 in your car.
IIRC, the case is longer, so at the very least you'd have to shorten your
drive shaft.  Here is an excellent link to a number of tech articles about
the 727.  Perhaps you can find something there that will lead you down a
different path.  The rest of their articles are pretty good, too, though
most concern A, B and E body Mopars.  There is a lot of useful information
in the engine/transmission sections.

http://www.moparts.com/Tech/Archive/auto.html

-- David
'91 K-Imperial driver
'66 Crown Coupe project