Classic Mustangs List Archive

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Mail From: Mikael Friberg (email redacted)

Hi folks,
Two questions;
1) First how can you tell the difference between the "little rug" and
the big?

2) In my car I have a 4 speed manual, that the former owner called the
little rug. The rear axle is a 9" with ratio 2:79. Although I got the
2:79 I think the car revs way to high at the 4th gear. Could this has to
do with the gear ratios in the tranny? If so, is it possible to change
it? BTW I got the original dimenisions tires.

Regards,
Mikael

/67 /HT /4v289 /4spd man /Limegold


--


Mikael Friberg

Analytikerna Telefon: +46(0)8-729 69 74 (10)
Torsgatan 21 Fax: +46(0)8-729 69 05
Box 6434
S-113 82 Stockholm
Sweden



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This read-only message was archived from a public mail list.
Mail From: Bill Lewis (email redacted)

Mikael Friberg <(email redacted)> wrote:
>
> Hi folks,
> Two questions;
> 1) First how can you tell the difference between the "little rug" and
> the big?
>
> 2) In my car I have a 4 speed manual, that the former owner called the
> little rug. The rear axle is a 9" with ratio 2:79. Although I got the
> 2:79 I think the car revs way to high at the 4th gear. Could this has to
> do with the gear ratios in the tranny? If so, is it possible to change
> it? BTW I got the original dimenisions tires.
>
> Regards,
> Mikael
>
> /67 /HT /4v289 /4spd man /Limegold

The Toploader transmission is available with a small or large input
shaft, and a 28- or 31-spline output shaft. The big output shaft is
used on higher performance cars. The big input shaft is used with
certain higher performance big-block engines.

If you have the tag number, I can tell you what combination you have.
RUG, by the way, is part of the tag number for most Toploaders.

You can identify the big output shaft with the tranny in the car.
At the rear of the tail housing where the seal is fitted, it's bigger
on the 31-spline version. Noticably. Bigger enough that the shifter
mounting plate is beveled to clear it, if you've got the Hurst
shifter.

Have you checked your rear axle ratio yourself, or are you going by a
tag or door plate code?

Bill
Ford parts for sale @ wrljet.com/engines/forsale.html

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