After reading these posts, I would have to agree the replacement pieces are flawed. My road runner's gas gauge was dead on accurate before I restored the car. When I put it back together, I used a new pickup/sender assembly with the untouched original gas gauge. It never goes past 3/4 full and has a lot of fuel left when the needle bottoms out. And all this time I thought it was something I did wrong when I put it back together.