45 minutes to remove the instrument cluster, fix speedo and re-install?
Hard to believe.  I took mine out and crimped the gear in question,
replaced all the light bulbs and re-installed.  No way you could do that in
45 minutes.  Plus, now my speedometer is about 8 to 10 mph off.  The
crimping lasted less than a year.
I don't know if it was worth it or not.  I have a my lights working, but
the speedo is off and the odometer still isn't reliable.
I won't tear it apart again unless I have a new gear to put back in.  Also,
I would pre-load the speedo needle spring about 8 mph.

                                                   Jay