6 Speed into an '86 GT

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LR - 20 Dec 2006 02:27 GMT

I'm thinking about putting a 6 speed manual into my '86 GT.

Are there any kits out there to do this? If so, who?

What all would you have to change? Bell housing? Driveshaft? Could you
use the factory hole in the trans tunnel? Speedometer gearing?

Thanks for your help.

LR

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.boB - 20 Dec 2006 03:54 GMT

> I'm thinking about putting a 6 speed manual into my '86 GT.
>
[quoted text clipped - 6 lines]
>
> LR

It's a big job. And expensive. You'll spend close to $2,500
if you do the work yourself. What you get with a T56 is
essentially the same first 4 gears as a T5, and instead of a .68
5th, you get a .8 5th and a .62 6th.

Here's an artical describing it:
http://www.stangnet.com/pbullitt/tremect56/index.html

I've seen a couple of kits. But it seemd like it was
cheaper to source the parts individually. I would contact people
like fortesparts.com and keislerauto.com

Signature

.boB
2006 FXDI hot rod
2001 Dodge Dakota QC 5.9/4x4/3.92
1966 Mustang Coupe - Daily Driver
1965 FFR Cobra - 427W EFI, Damn Fast.

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Big Al - 20 Dec 2006 18:08 GMT

> > I'm thinking about putting a 6 speed manual into my '86 GT.
> >
[quoted text clipped - 11 lines]
> essentially the same first 4 gears as a T5, and instead of a .68
> 5th, you get a .8 5th and a .62 6th.

My Z28 has a 6 speed T56. Fifth is .74 to 1, and sixth is .5 to 1

http://www.5speedtransmissions.com/t56_86_mustang.html

Al

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Michael Johnson, PE - 21 Dec 2006 14:45 GMT

> I'm thinking about putting a 6 speed manual into my '86 GT.
>
[quoted text clipped - 4 lines]
>
> Thanks for your help.

I have a T-56 installed in my '89 LX. There are kits out there to do it
but be prepared to spend around $2,500-$3,000 to do it right. You will
need to relocate a cross member and do some fairly intensive welding
along with a drive shaft swap among other things. In the end though the
T-56 is a sweet tranny and you will be happy, except for the lighter
wallet. ;)

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