reggie Posted April 4, 2020 Share Posted April 4, 2020 Hi guys as the title suggests can a P38 Auto gearbox from a 4.0 V8 fit on 3.9 V8 in a classic? I’m thinking yes as its the same box but no oil filler, what other differences are there? Or reasons it wont work out? I have one sat around & thinking I might aswell use it rather than source one for the classic. Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted April 4, 2020 Share Posted April 4, 2020 Isn't an EH, with electronic control? Quote Link to comment Share on other sites More sharing options...
Escape Posted April 4, 2020 Share Posted April 4, 2020 The P38 uses an electronically controlled version of the ZF. Without the ECU, you wont be able to control the valve block. Filip Quote Link to comment Share on other sites More sharing options...
reggie Posted April 5, 2020 Author Share Posted April 5, 2020 I do have the ecu, how much work is involved to fit the gearbox I wonder? Would it be a complete loom change? Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted April 5, 2020 Share Posted April 5, 2020 The gearbox ECU will need to talk to the engine ECU I believe, which you most certainly don't have.... (at least fitted) Quote Link to comment Share on other sites More sharing options...
DaveSIIA Posted April 5, 2020 Share Posted April 5, 2020 Could be easier to change the valve block for one from a non-EH box i.e. RRC / Disco 1. No electronics to worry about. Quote Link to comment Share on other sites More sharing options...
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