Dash cluster
 

New to this forum, and im sure this has probably been discussed (went back 2 yrs in threads and didnt see it). Typical silverado dash issue... lights, turn signals, oil pressure guage and voltage guage work. Tach, speedometer, fuel and temp guages dont. Ive replaced the cluster and same guages are still not working. Checked all fuses, and fixed that ground wire attached to the rear of the block.
can anyone offer other options that might be the issue?
thanks