172 non cup with jc5 130 box

[Fletchyboy93]

Hi guys needed a new box so put a jc5 130 in my 172 non cup and the speedo doesn't work any ideas what to do?

Fletch

 

[Dan@SJM]

Your old box would've had a speedo drive, so guessing it's y/51/02 plate.

So you need to find a box with a speedo drive.

 

[Fletchyboy93]

yeah 02 plate and i dont have the old box anymore which speedo drive do i need? new clocks aswell or same ones?

 

[Fletchyboy93]

and as it turns out mine is a 172 cup -.- so id need the jc5 129? any ideas how to get past this without swapping boxes?

 

[Dan@SJM]

You can't.