Speedo no worky?

[Gary E]

I know sounds oemish, but I am wondering if there are compatibility issues with the t-case I swapped in, I have an 87 that originally had a 231 with the speedo cable. I swapped in a 92 231 that originally had the speed sensor in it, and it hasn't worked since. the gears all looked the same? any ideas?

[FatXJ]

I thougth the 91+ had an electronic speedo. I know the 87-90 is cable driven so how did that work?

[STROKER]

if one is cable drive and the other is electric then you answered your own question....

the cable drive runs up to the speedo, the electric one has a plug on it and is run via electric puleses....

[Scott Mac.]

Did you index the gear correctly, the only way to do it is trial and error. There's only 4 ways it'll go in.

[Gary E]

Hmm I don't know how to index it. Do I just keep rotating the part that goes into the T-case?

The 92 had the electric unit but the portion that sits in the t-case looks the same, between the cable and electronic units. The speedo gear looks the same etc, it all slides right in and bolts up the same.

[bradlyw]

the electronic and cable driven is irrelevant. its the same where it goes into the t-case. as to the indexing, there should be numbers on the part that hold the t-case gear. these are the tooth numbers of the speedo gear. clock the gear accordingly.

Brad