Ok, so I attempted this fix today and swapped out the capacitor. Plugged back the instrument cluster in and now the fuel guage, speedometer and oil guage does not work!!

Basically, the only thing that works are the turn signals. Not sure what to do now? I am thinking about using MBCluster.com and sending it to them for this fix.
The capacitor was only $1.29 at Radio Shack (470 UF at 35 volts) and the Soldering set was only $8.99.
Help