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Fitting large torque converter to ZF 4hp22


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please is it possible to fit large torque converter to 4HP22? If yes, what needs to be changed?

I am planning to fit 4.6 engine into my RRC currently with 3.9 and standard auto box and was thinking of changing TC for bigger one while i am in.


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yes, I have read info on ashcroft site.

there is:

-large converter can only be used with the stage 2 as it will only fit the 4HP24 front end.

-To fit the large converter you will need the 4.6 boss and flexplate assy to match the bigger converter

the question is, what parts contain 4HP24 front end and is it possible to fit it to 4HP22?

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