So I picked up a 1970 Duster today, got some newb questions

Hi. The sending unit should be over top of the diff before u take it out pull the power wire an ground it out ur gas gauge should move if not check ur reg under the dash it operates gas an temp gauge.if not that then pull ur sending unit check it with a ohm meter not sure what they should read check ur manual or some one eles will cime in with them.