Project J&M Splicing RB25

[aep886]

good soon you will be in action with me?

[Jacquesopper]

Hi ,

I need some technical info please . I am busy replacing the RB20 gearbox with a RB25 fatboy box and the speedo unit on the box looks as if it will not fit as the firewall is very close to the box . Do I need to get another unit or modify it in any way ? Any help will be appreciated .

Thanks

[rat]

Ca sr rb20 box are the same inside. Speedo sensors can be swapped. Rb25 is very different. You can try get a speedo drive from a vg30 box. Use a ford hammer to get your transmission tunnel bigger.