Unusual question ?

[stevie_a]

Bit of a strange request this one.

1. As far as i know i have a standard 5 speed gearbox in my car, and standard diff, is there tell tale ways to confirm this?

2. the speedo drive in my car is the standard cable drive, if i want to change that to electrical drive, is

it a case of just fitting a SPEEDO TRANSDUCER from a Rover sd1 to the gearbox to replace the cable drive?

If so how do i find out if it is a 22 teeth red, 23 teeth black, 20 teeth Orange etc that i need.?

[nick]

Don't know if there is a standard for the gearbox/diff combination. The diff came in a few varieties with the 5 speed box. It could be a 3.9:1 if it is pre 1980. Or it could be a 3.45:1 if it is a later car. The way to tell is jack the car and look on the bottom of the diff housing. There will be a code etched. Don't mistake the raised numbers there for the code. The code is etched and you may have to use a wire brush before you can read it. The codes are CH and CL for 3.9 and 3.45 respectively.
Someone else will have to address your other questions since I have no idea.

[RJS]

It takes longer to jack up the can than it takes to pull out the gear and look at it (as I remember). A single bolt holds on the cable. Disconnect it and then the gear should bull right out.

Rob

[busheytrader]

As per Rob the gear is easy to pull out. Make sure the area is squeaky clean before removal and don't force things as there are O rings present.

As usual the parts book diagram on the Rimmer Bros website displays it better than I can describe it.

http://www.rimmerbros.co.uk/Item--i-GRID006106

Hope this helps,

Adam

[busheytrader]

And be careful how you put it back together. I mashed up the end of the speedo cable when I didn't seat everything correctly before tightening up the bolt. The speedo was very erratic until I replaced the cable...........