Classic Mustangs List Archive

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Mail From: mastros (MICHAEL MASTROIANNI)

My car (originally a 3-speed manual) has a 2.79 rear axle and I'm running 225/60/15 tires. Is there a "simple" way to figure out what tooth count I need on my speedo cable with a T-5 tranny?

Thanks in advance,
Mike
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Mail From: dschmi (Dave)

Michael,

See my web page:
pweb.netcom.com/~dschmi/mustang.html
There is a page devoted to speedometer gears and transmission swaps.

Hope this helps,
Dave

MICHAEL MASTROIANNI wrote:

> My car (originally a 3-speed manual) has a 2.79 rear axle and I'm
> running 225/60/15 tires. Is there a "simple" way to figure out what
> tooth count I need on my speedo cable with a T-5 tranny?
>
> Thanks in advance,
> Mike
>
>------------------------------------------------------------------------
>
>_______________________________________________
>Classic-mustangs mailing list
>Classic-mustangs at lists.twistedpair.ca
>lists.twistedpair.ca/mailman/listinfo.cgi/classic-mustangs
>
>Visit the Classic Mustang Wiki! sauce.donair.org/~cm/
>
>
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Mail From: RRobaldo (Lance Robaldo)

Just finished that exact same swap just a couple weeks ago!!

You're combination is the same as mine, so I've already done all the
calculations you need. (Actually Bruce @ ModernDriveline.com did all the
calculating.)



For your particular combination, you need a T5 drive gear with 8 teeth and a
driven gear with 18 teeth. That'll get you about as close as you can get for
those tires and rear-end.



Good luck!



Lance.





_____

From: classic-mustangs-bounces at lists.twistedpair.ca
[mailto:classic-mustangs-bounces at lists.twistedpair.ca] On Behalf Of MICHAEL
MASTROIANNI
Sent: Sunday, October 01, 2006 7:24 AM
To: RRobaldo at wltsoftware.com
Subject: [CM] T-5 swap speedometer gear question



My car (originally a 3-speed manual) has a 2.79 rear axle and I'm running
225/60/15 tires. Is there a "simple" way to figure out what tooth count I need
on my speedo cable with a T-5 tranny?



Thanks in advance,

Mike

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Mail From: RRobaldo (Lance Robaldo)

Found this great website that lets you key in the tire & rear-end specs and it
tells you what speedo gears to use. It came up with the same thing I said
earlier.



hanlonmotorsports.com/t5speedo.asp



Lance.





_____

From: classic-mustangs-bounces at lists.twistedpair.ca
[mailto:classic-mustangs-bounces at lists.twistedpair.ca] On Behalf Of MICHAEL
MASTROIANNI
Sent: Sunday, October 01, 2006 7:24 AM
To: RRobaldo at wltsoftware.com
Subject: [CM] T-5 swap speedometer gear question



My car (originally a 3-speed manual) has a 2.79 rear axle and I'm running
225/60/15 tires. Is there a "simple" way to figure out what tooth count I need
on my speedo cable with a T-5 tranny?



Thanks in advance,

Mike

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Mail From: mastros (MICHAEL MASTROIANNI)

Lance,

Thanks a lot for the great info!

Mike
----- Original Message -----
From: Lance Robaldo
To: Mike M.
Sent: Monday, October 02, 2006 10:28 AM
Subject: Re: [CM] T-5 swap speedometer gear question


Just finished that exact same swap just a couple weeks ago!!

You're combination is the same as mine, so I've already done all the calculations you need. (Actually Bruce @ ModernDriveline.com did all the calculating.)



For your particular combination, you need a T5 drive gear with 8 teeth and a driven gear with 18 teeth. That'll get you about as close as you can get for those tires and rear-end.



Good luck!



Lance.






------------------------------------------------------------------------------

From: classic-mustangs-bounces at lists.twistedpair.ca [mailto:classic-mustangs-bounces at lists.twistedpair.ca] On Behalf Of MICHAEL MASTROIANNI
Sent: Sunday, October 01, 2006 7:24 AM
To: RRobaldo at wltsoftware.com
Subject: [CM] T-5 swap speedometer gear question



My car (originally a 3-speed manual) has a 2.79 rear axle and I'm running 225/60/15 tires. Is there a "simple" way to figure out what tooth count I need on my speedo cable with a T-5 tranny?



Thanks in advance,

Mike



------------------------------------------------------------------------------


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Classic-mustangs mailing list
Classic-mustangs at lists.twistedpair.ca
lists.twistedpair.ca/mailman/listinfo.cgi/classic-mustangs

Visit the Classic Mustang Wiki! sauce.donair.org/~cm/
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Mail From: mastros (MICHAEL MASTROIANNI)

Lance,

I just checked the driven gear on the end of my 3 speed manual speedo cable and, to my surprise, counted 18 teeth. So, I figured I would give it a try (manually) and it seems to turn just fine when I spin the shaft of the tranny. So, I guess I'm good-to-go.

Thanks Again for the info,
Mike
----- Original Message -----
From: Lance Robaldo
To: Mike M.
Sent: Monday, October 02, 2006 10:28 AM
Subject: Re: [CM] T-5 swap speedometer gear question


Just finished that exact same swap just a couple weeks ago!!

You're combination is the same as mine, so I've already done all the calculations you need. (Actually Bruce @ ModernDriveline.com did all the calculating.)



For your particular combination, you need a T5 drive gear with 8 teeth and a driven gear with 18 teeth. That'll get you about as close as you can get for those tires and rear-end.



Good luck!



Lance.






------------------------------------------------------------------------------

From: classic-mustangs-bounces at lists.twistedpair.ca [mailto:classic-mustangs-bounces at lists.twistedpair.ca] On Behalf Of MICHAEL MASTROIANNI
Sent: Sunday, October 01, 2006 7:24 AM
To: RRobaldo at wltsoftware.com
Subject: [CM] T-5 swap speedometer gear question



My car (originally a 3-speed manual) has a 2.79 rear axle and I'm running 225/60/15 tires. Is there a "simple" way to figure out what tooth count I need on my speedo cable with a T-5 tranny?



Thanks in advance,

Mike



------------------------------------------------------------------------------


_______________________________________________
Classic-mustangs mailing list
Classic-mustangs at lists.twistedpair.ca
lists.twistedpair.ca/mailman/listinfo.cgi/classic-mustangs

Visit the Classic Mustang Wiki! sauce.donair.org/~cm/
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Mail From: Lance (Lance Robaldo)

As long as you have an 8 tooth drive gear in the transmission, you're good
to go.

I don't know what color the drive gear is for that application.



Lance.





_____

From: classic-mustangs-bounces at lists.twistedpair.ca
[mailto:classic-mustangs-bounces at lists.twistedpair.ca] On Behalf Of MICHAEL
MASTROIANNI
Sent: Wednesday, October 04, 2006 8:10 PM
To: Lance at robaldo.com
Subject: Re: [CM] T-5 swap speedometer gear question



Lance,



I just checked the driven gear on the end of my 3 speed manual speedo cable
and, to my surprise, counted 18 teeth. So, I figured I would give it a try
(manually) and it seems to turn just fine when I spin the shaft of the
tranny. So, I guess I'm good-to-go.



Thanks Again for the info,

Mike

----- Original Message -----

From: Lance <mailto:RRobaldo at wltsoftware.com> Robaldo

To: Mike M. <mailto:mastros at verizon.net>

Sent: Monday, October 02, 2006 10:28 AM

Subject: Re: [CM] T-5 swap speedometer gear question



Just finished that exact same swap just a couple weeks ago!!

You're combination is the same as mine, so I've already done all the
calculations you need. (Actually Bruce @ ModernDriveline.com did all the
calculating.)



For your particular combination, you need a T5 drive gear with 8 teeth and a
driven gear with 18 teeth. That'll get you about as close as you can get
for those tires and rear-end.



Good luck!



Lance.






_____


From: classic-mustangs-bounces at lists.twistedpair.ca
[mailto:classic-mustangs-bounces at lists.twistedpair.ca] On Behalf Of MICHAEL
MASTROIANNI
Sent: Sunday, October 01, 2006 7:24 AM
To: RRobaldo at wltsoftware.com
Subject: [CM] T-5 swap speedometer gear question



My car (originally a 3-speed manual) has a 2.79 rear axle and I'm running
225/60/15 tires. Is there a "simple" way to figure out what tooth count I
need on my speedo cable with a T-5 tranny?



Thanks in advance,

Mike


_____


_______________________________________________
Classic-mustangs mailing list
Classic-mustangs at lists.twistedpair.ca
lists.twistedpair.ca/mailman/listinfo.cgi/classic-mustangs

Visit the Classic Mustang Wiki! sauce.donair.org/~cm/

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