There is no speedo connection on the MSP trans because it reads the ABS Wheel sensor. So you wont have a functioning speedo without adding it to the MSP dif.
If your P5 doesn't have abs the only thing you can do is pull the tranny again crack it opened and swap your pink speedo gear to the MSP lsd...sorry dude but youre the second person I've seen do this in the past couple days
You may want to have the msp lsd casing welded for strength since they are a common problem if any kind of power is in your future.
heh... where can i find this pink speedo gear? I am doing a p5 automatic transmission to an msp manual transmission. Can this be found on the auto tranny? If not does anyone know the part number or someone who might be selling one?