Andrews Gear Set with Tranny Speedo

[Penguin74]

Rebuilding a 78 4 speed and want to get a set of close ratio Andrews gears. Looking at the pictures though and it doesn't appear that my speedo drive gear is gonna be able to work. The Andrews set looks like the speedo gear is just smooth all the way around. Is there a different type of speedo gear you have to run with these sets or are they just not compatible with a speedo at all?

[JBinNC]

You must press your original speedo ring gear off your c'shaft cluster and press it on the new Andrews piece. Be careful, the speedo gear is fairly fragile. Best to check the press fit, old vs. new as well.

Jim

[Penguin74]

Ah, I see. This job just got a little more challenging...

Appreciate the quick response!