helping my buddy with his 90 c1500 350 . i was looking into his gear shift issues . the column shifter has to be pushed hard into park to take out the key , also needed the e8 bolts in the column tightened . so while i was in there we did the blinker and blinker cam . and now the intermittent no start is worse . if it does start i need to cycle the gear shift all the way down to low one and back up again to park and try and start it . i took out the neutral safety switch . cleaned it and then jumped it still there, replaced the fused link under the engine bay cover because it was corroded and the issue is still there . is this the ignition switch ?