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Old 08-07-2003, 05:46   #1 (permalink)
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AU2/3 gearbox ratios..

Hi,i cant find any info on the au2/3 t5 trans gear ratio's for xr8,xr6...
also does the ef xr6 box have the same as the au 6cyl?


cheers,phil.
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Old 08-07-2003, 05:53   #2 (permalink)
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Re: AU2/3 gearbox ratios..

Quote:
Originally Posted by philstoj
Hi,i cant find any info on the au2/3 t5 trans gear ratio's for xr8,xr6...
V8 has a 2.95 ratio first, VCT has a 3.05 ratio first, and non VCT has a 3.35 ratio first.

Quote:
also does the ef xr6 box have the same as the au 6cyl?
EB to EL XR6 has the 3.28 ratio first, therefore different. AU boxes are not dimensionally interchangeable with earlier models.
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Old 08-07-2003, 06:08   #3 (permalink)
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Re: AU2/3 gearbox ratios..

thanks for that,but do you have the rest of the gear ratio's handy?


cheers.
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Old 08-07-2003, 06:21   #4 (permalink)
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Hi Phil,

Here are the ratio's for the AUII/III T5OD box for the XR6 and XR8.

XR6 HP/VCT
1st 3.35 (3.05 VCT)
2nd 1.93
3rd 1.29
4th 1.00
5th 0.72

XR8
1st 2.95
2nd 1.94
3rd 1.34
4th 1.00
5th 0.73
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Old 08-07-2003, 06:23   #5 (permalink)
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Re: AU2/3 gearbox ratios..

V8 is 1.94 second, 1.34 third, 1.0 fourth and 0.72 fifth. Sorry, don't know the others off the top of my head, remember them for box ID purposes only.
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Old 08-07-2003, 06:24   #6 (permalink)
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Re: AU2/3 gearbox ratios..

thanks guys!
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Old 08-07-2003, 06:25   #7 (permalink)
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Re: AU2/3 gearbox ratios..

XRSG, you type way quicker than me! (and V8 is definately 0.72 fifth)
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Old 08-07-2003, 16:02   #8 (permalink)
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Re: Re: AU2/3 gearbox ratios..

Quote:
Originally Posted by WBT56
XRSG, you type way quicker than me! (and V8 is definately 0.72 fifth)
Apologies XR strider, I notice the Ford website now lists the BA XR6T T5 ( same internals as AU XR8) as 0.73 ratio O/D. This box has historically been listed as 0.72, but mathematically it works out at 0.727. I was only being pedantic as often the actual ratio number is deliberately rounded to make it different from a similar but not interchangeable product.
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