I have a 95 nissan pickup 2 wheel drive, 4 cyl. 2.4 liter. It does not matter what gear you are in when you hit 35oo rpm the engine starts to jerk the truck back and forth. I have change the fuel filter and fuel pump and have given the truck a full tune up. Not sure what to do now.

Test/replace the igniter and coil. Autozone and O'Reilly Auto will test for free. Of the two components, I suspect the igniter is the culprit. Best to get both tested.