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WRX gearbox, can I replace a TY754 with a TY752?

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Old 16 September 2011, 06:53 PM
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electronic_matt
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Default WRX gearbox, can I replace a TY754 with a TY752?

Does anyone know if its possible to replace a TY754 gearbox with a TY752 on an 03 WRX, will it go straight on?

Last edited by electronic_matt; 16 September 2011 at 06:54 PM.
Old 20 September 2011, 03:33 PM
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harvey
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It will fit but the 752 is not as good a box as the 754.
Also you must ensure you have the same diff ratio. If you have a TY754 VN you must replace with another VN gearbox. If you have a TY754 VB then it is more complicated and to check you need the full designator code for both boxes.
Putting a 752 in your car is not a good move.
Old 20 September 2011, 04:35 PM
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electronic_matt
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Originally Posted by harvey
It will fit but the 752 is not as good a box as the 754.
Also you must ensure you have the same diff ratio. If you have a TY754 VN you must replace with another VN gearbox. If you have a TY754 VB then it is more complicated and to check you need the full designator code for both boxes.
Putting a 752 in your car is not a good move.
Ok thank you for the info so will any TY754VN box be ok? what about the TY754VN1AA? as there's some on ebay at the moment
Old 21 September 2011, 06:53 AM
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Originally Posted by electronic_matt
Ok thank you for the info so will any TY754VN box be ok? what about the TY754VN1AA? as there's some on ebay at the moment
If you have a TY754 VN you must replace with another VN gearbox.
OK. You have a UK car with a TY754VN and you are replacing it with a TY754VN
Old 21 September 2011, 02:10 PM
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Originally Posted by harvey
OK. You have a UK car with a TY754VN and you are replacing it with a TY754VN
Isn't the 1AA a different ratio than a 4AA though?
Old 22 September 2011, 07:12 AM
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Your question was will it fit, not what were the ratios.
TY754 is a UK/European box. 3.9 front diff and 3.545 rear diff and 1.1:1 drop gear.
As to the actual gear ratios, look up a gearbox ratio chart.
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