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borg t5 in xa falcon. behind 351


Escorto.

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im looking to put a t5 5 speed in my xa falcon.

what i need to know is..

1. What is the best car to use the box out of. heard mustang is best?

2. Where does the shifter end up?

3. What driveshaft to use?

4. What diff ratio to match for motorway cruising?

Thanks

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What about a single rail 4 speed?

Or, be the real man. And. 4 speed close ratio bull nose top loader. Just say it. You know you want to be able to say that. Top loaders can handle good hp but are poo as for general driving/takes half an hour to chop gears.

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Had a T5 4 speed behind a 351 Windsor in a XA wagon years ago.

It was a much better box than the Top Loader! (I can hear the groans now from the Top Loader fans as I write this)

The T5 has much faster shifts and is way cheaper to service.

If you want a 5 speed think again they are weak as, they had problems with them behind the 3.3 Crosflow.

The "5.0 Turbo Mustang box" is a bigger box and a lot harder and expensive to find. (Std 5.0's used the T5)

Put a T5 single rail 4 speed and a 3.25 9" and you will be set for 150MPH at 7500RPM.

The XA wagon I owned did 13.5 sec 400 meter times with a open 3.5 ratio and put out 350+ hp at the wheels.

I did Bearings every 20,000km's and burnouts with a gearbox cooler. (A Top Loader will be the same)

All I used was a trans cooler and a low pressure fuel pump to circulate the gearbox oil.

If you really wanta 5 speed try a W58 Toyota, they are even better than the 5.0 Mustang Turbo box and 1/2 the price to buy and fix + you can get one in NZ.

If you use the T5 4 speed you can use the drive shaft, cross member and speedo cable form the auto and the gear stick WILL come up in the same place as the auto floor change as long as it is a falcon and isn't a cortina 6cyl or escort rocket box. (yes they are the same gear boxes just with different tail housings and linkages)

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The 5 speed and the 4 speed are both called T5.

The 4 speed has all the bearings in the gearbox housing.

The 5 speed has an extended lay shaft that protrudes into the bellhousing with the bearing mounted in the back of the bellhousing, this is why they are weaker.

The 4 speed is 1:1 top but there are gear sets available with 1:1 3rd and 1:115 or 1:125 available.

It is how ever easyer to just bump up your diff ratiio. they have a lowish 1st so on the V8 a 3.25 to 2.75 ratio still gives you a usable street car, as long as you havn't got a monster cam that gives no horsepower under 4000 RPM.

If you have a monster cam stick with a auto and high stall converter as even a Top Loader would be a pain.

Hollenger do a nice 5 or 6 speed sequencial shift for arround $4k to suit big HP 351's or 302's.

The T5 4speed was used from XD to XF in the 3.3, 4.1 and 5.0(302) models.

The ones in the 3.3's are the best as they have done the least work.

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