It probably would of been easier to remove the whole cluster but I managed to get it out under the dash,someone told me I did not need a resister and the gauge would handle 12 volts but I fried it so today I put in the NOS gauge.  It would start out cold with the gauge about 1/3 up and would peg all the way over to hot and put up with it for over 3 years,after the gauge was installed it pegged hot and I remember I picked up a new sending unit last year and now it works like it should.  I am glad I did not have the gas gauge hooked up at the time or I would of needed a new gas gauge too,the gauges are being controlled with a instrument voltage regulator from a 69 truck.

Butchering up everything I can get my hands on in Dayton Ohio