Re: IML: 73 overdrive details

[Kenyon Wills <imperialist1960@xxxxxxxxx>]

> 2. Overdrive
> Is anyone using an overdrive unit?  If so, what is
> the reliability of it?  
> The Gear Vendors gearbox sounds almost too good to
> be true.  Can it handle a 
> 3 ton car under(brisk) acceleration?  Does it hang
> down too far?
> 


It's less about the weight of the car than it is the
stress placed on the driveline.  I didn't go revisit
their website, but I recall them saying that they were
rated to 1200 horsepower or some such stratospheric
number.  If they can handle a hotted-up camaro doing
launches, your dinosaur should not prove a problem. 
They are trying to make this thing work on as wide a
spectrum as possible.

Richard Palme has one in a car that he showed me. 
Works great, and turns your 3-speed into a 6-speed
with an under-dash auto/manual shift option.

Expect to use a mallet or sledge to pound the
transmission tunnel out.  Therefore, you'll want to be
installing it someplace other than a gravel lot, and
perhaps where you have access to a car lift?  Doing
that on jackstands could be precarious.  Get a can od
spray undercoating to seal things up after the
pounding  is done but before final fitment would be a
good idea.  

I plan to put one into a 72/73 coupe behind a HP motor
if/when I find one (please keep your eyes open for
one, folks).  Gear Vendors seems to be THE option and
they are Torque-Flight friendly.

Kenyon Wills
 
 






















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