Question about 1997 Mitsubishi Diamante

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Auto box issue

Hi i have a96 diamante with a 3.5l 6g74 engine and need a replacement gearbox i need to know wot other modles have compatable gear boxes i have been told the 3.0l have the same box but with differint bell housings but mmine will fit and also will the torque converter fit aswell

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  • kiwimante96 Jul 19, 2008

    yea its a late 96 nz new its def a 3.5l its a 3rd gen diamante my trans num is f4a51-k2-d5a just need to know if the 3l an 3.5 from late 96 to 99 have the same box any info would b grate



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I have an applicator chart that says 1992-1996 Diamante only had 3.0 ltr engine available,and the chart also says that the 3.5ltr was only available from 1997-2004.So either my chart is wrong,or you have a LATE 1996 that is actually a 1997.Either way,my chart says the 3.0 ltr engines used an F4A33-1 auto trans and the 3.5ltr's used an F4A51 trans.You ust recheck your vehicle to verify all the specifications.I would rebuild the trans that's in there,but i am a transmission rebuilder.Getting a used trans is kind of iffy,as you may be getting junk or a high mileage trans.As far as interchange,contacting a junkyard is the best way to go as they have interchange manuals.I would try and stay with the same year model and same vehicle.My chart says that the F4A51 also came in 96-05 Eclipse's...will it work in your Diamante?I don't know.I do know that an 05 trans won't work in your 96 model. Best way to go is rebuild your trans,or get one from a remanufacturer like Jasper Engines and Transmissions.

Posted on Jul 19, 2008

  • David Fleming Jul 19, 2008

    No,the 3.0 ltr and 3.5 ltr do not use the same trans.Thats the reson for the two separate designations.3.0 ltr uses the F4A33-1 trans and the 3.5 ltr uses the F4A51.Two totally separate and not interchangeable transmissions.The F4A33-1 is a much smaller trans (internal parts) and the bellhousing won't bolt up.



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