Will a r33 gauge cluster fit in an s13?

[Solidus311]

I have an rb25 swapped s13 and want my gauges (mph or kph and tach) to read accurately. Is there any other alternative to another gauge, or those expensive analog replacements?

[Sileighty_85]

http://www.gruppe-s.com/Defi/defi_dsscflash.htm

Pure Sex

[Solidus311]

It looks like the cheapest way to get the mph correct is to buy a 300zx speed sensor from autozone ($75) and a pinion from courtesy ($15-$25). I don't know which pinion to get, however. They range from 17t to 21t (t is for the amount of teeth on the pinion). Which one do I need for the rb25 tranny?

As for the tach, Carl H. is supposed to help me for $45 plus shipping.