[tkeduk8r]

i have some good news.. i just did a swap very similar in my 74.... i used a cluster out of a 79 with all gauges cept tach and put it in my 74 that had the ididots... actually this swap is easier (i think) than going to a original 73-76 cluster cuz all you have to do is switch pin placement on the plug that snaps into the back of the cluster... and you get a voltmeter instead of a ampmeter which i prefer too... THE key in doing it is to trace and label all the wire routing in the circuit sheet on the back of the clusters... I do have it written dwon exactly which pins i switched, but i have to dig it out.. i was gonna post it but forgot till now... ill see what i can do... it is very easy.. all you will need after removing the cluster is a straight blade jewelers screwwdriver and a 1/4" or 7mm socket/ratchet, and thats just if you want to use the 75 speedoand fuel gauge... I swapped my 74 speedo and fuel gauge to the 79 cluster... ill try to post more later... OH and you will need the ELECTRICAL sending units for the oil pressure and temp gauge, and they DO have them available at parts stores, I would go somewhere where they have access to ACDelco stuff and they can find them for you... they did for me... good luck,
--mike