[DeTomaso] ZF Ratios and Specs

[Kirby Schrader]

Very much agreed. As I’ve said before, my Pantera has a .655 5th and the GT40 has a .642.

I love them both.

Screaming tire smoking 1st and 2nd. Nice lazy 5th.

Every time I see a car with a 3.77 ring and pinion, they’re always slipping the clutch to take off.
GT40 or Pantera…

Me likee tall 5th gears. After all, 4th and 5th are too close together in my opinion anyway….

FWIW,
Kirby

> On Nov 4, 2015, at 18:08, Asa Jay Laughton <asajay at asajay.com> wrote:
> 
>   For what its worth, when I visited Dennis Quella a few years ago, he
>   told me the same thing.  The biggest bang for the buck was the taller
>   5th gear; don't bother changing the ring and pinion.  But he said if I
>   really wanted a taller R&P he'd be happy to sell me one.
>   If/when I ever have my ZF serviced, I'll go with the 5th gear change.
>   Asa  Jay
>   Sent using Jedi Mind Tricks
> 
>   Mike Drew via DeTomaso <detomaso at poca.com> wrote:
>   Michael,
>   Although the spreadsheet on Panteraplace is very useful, it will take
>   any value and thus give you data for gears that don't exist. GIGO.
>   Lloyd Butfoy's program allows you to select from the available ratios.
>   Generally, the stock R&P is 4.22; some GT-5S era cars could be had with
>   an optional 4.00, and 3.77 is the widely popular 'Le Mans' gear set.
>   A new rear end set is about $2500. Some people have gone for both the
>   3.77 and super-overdrive 5th gear (.642 or .620) and the combination of
>   the two has been a failure in most cases. Fifth then becomes too tall
>   to be realistically useable below 90-100 mph or so.
>   What are you hoping to achieve?  Most people would be best served with
>   the stock 4.22 and the taller 5th, I think.
>   Mike
>   Sent from my iPhone
>   On Nov 4, 2015, at 14:35, Michael Shortt <michaelsavga at gmail.com>
>   wrote:
>>  Does anybody have and will share the specs for different ratios
>>  sppeds in each gear at X rpm, etc.
>>  4:56
>>  4:22
>>  3.750
>>  3.53
>>  are there any others?
>>  Thank you,
>>  Michael
>>  --
>>  Michael L. Shortt
>>  Savannah, Georgia
>>  [1]www.michaelshortt.com
>>  [2]michael at michaelshortt.com
>>  912-232-9390
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>> References
>> 
>>  1. http://www.michaelshortt.com/
>>  2. mailto:michael at michaelshortt.com
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