need help with 130 speedo

[newCSbeliever]

i just recently purchased my first toyota, an 82 celica supra, and i must say i like the car a lot. all the work i have done to it has gone rather smoothly except the new instrument cluster i installed with the 130 speedo instead of the 85. the speedometer is not calibrated i would assume. now my question is, do i need to replace an exiter ring for the VSS or what. i have looked around for information about the calibration procedure to no avail. any help would be greatly appreciated. also, my car has a lot of rust, i am looking for a good clean strait chassis in the phoenix area, dont really care about motor and tranni. any tips on that would be greatly appreciated also.

[Jeeves]

You will have to probably replace the speedo gear with one of the correct ratio.

[newCSbeliever]

right, but do you know how to go about it besides trial and error. if the gear needs to be replaced, can i just get one off of a Celica Supra the speedo came from, and will it fit without modifications? i can do the work, but i need a database for what im doing, would you recommed a site or something?

[TcmaBoy]

You can transplant the spedo gear from the car it came from provided that the tire size and rear end gearing are the same.