Are the gauge clusters all compatible from 88-91 if it is a manual cluster going into a manual crx?

 

There are differences between 88-89 and 90-91. >>>>> http://crxcommunity.com/viewtopic.php?p=65118

 

all would work with a little re-wiring

 

that is correct!

 

-And you can use an auto cluster in your five speed car. There just wont be a plug on the harness for the 'gear selection' row of lights on the cluster. Along with a few different wiring pins, 88-89 clusters are a different shape than the 90-91s too ... less round than the latter.