Gearbox codes

[BAM1]

Hi,just purchased a gearbox JC5 053 out of a Megan 2.0L 16v F7R will this box fit my Williams 1,i got gearbox mount with it & the only other thing i can see that's different is the speedo drive

[p4cks]

This should help... http://williamsclio.co.uk/forum/show...C5-differences

[BAM1]

Thanks any idea's on speedo drive as JC5 014 looks mechanical & JC5 053 looks electrical ( are they changeable in any way )