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laurieJ1S
Laurence Jones
Essex - England
(3 posts)

Registered:
07/29/2012 04:23AM

Main British Car:
Daimler SP250 C spec 1964 and the SP252

New Man
Posted by: laurieJ1S
Date: July 29, 2012 04:50AM

I'm into The Daimler SP250 and have the entire records of these cars - see latest Motor Trend Classic (summer edition) article on the SP. If any reader on this forum wishes to known their cars historical factory spec - contact me.

But now I need your help in that I wish to fit a Borg Warner T5 gearbox in an SP. The 5th gear ratio in the 'box is .63 I wish to change it to a .72 . Question - has it been done and if so how easy. I wish to have a 'box set of 2.95; 1.94; 1.34;1:1 and the 5th currently is .63 and the wish is .72. ( I don't mind going to 2.43; 1.56; 1.24; 1:1 and then the .72. this is another T5 set up but the 5th is .83 and I need a higher 5th for a more relaxed cruising drive)

Laurence


HealeyRick
Rick Neville

(489 posts)

Registered:
12/19/2007 05:01PM

Main British Car:
1963 Austin-Healey 3000 Ford 5.0L

authors avatar
Re: New Man
Posted by: HealeyRick
Date: July 29, 2012 08:20PM

I'd give Modern Driveline a call. Here's some info from their website:

"Can 5th gear be geared down or up from stock overdrive?

Yes, 5th gear can be changed from .68 to .73, .80, or 90. .63 can be changed to .59, .73, or .83"

[www.moderndriveline.com]


laurieJ1S
Laurence Jones
Essex - England
(3 posts)

Registered:
07/29/2012 04:23AM

Main British Car:
Daimler SP250 C spec 1964 and the SP252

Re: New Man
Posted by: laurieJ1S
Date: July 30, 2012 04:22PM

Thank you for your help. Kind Regards Laurence
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BMC
Brian Mc Cullough
Forest Lake, Minnesota, USA
(383 posts)

Registered:
10/30/2007 02:27AM

Main British Car:
1980 MGB '95 3.4L 'L32' SFI V6, GM V6T5 & 3.42 Limi

authors avatar
Re: New Man
Posted by: BMC
Date: September 22, 2012 05:54PM

5th gear in the T5 is the only one that can be practically changed out.

-BMC.


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