3.73s In A '90 With A Slushbox... Speedo Gear?

I am looking at getting a '90 fox body.
It doesn't have a ton of mods, but has 3.73s.
With an AOD do they make a speedo gear for this gear set?
I don't know if this has already been taken care of or if there's going to be a conflict because they don't make the speedo gear for a '90 with 3.73s and a slushbox??

Thanks.

That's what my search recovered, but thought some of these AOD guys would know definitevely ...