Gas Tank

[sixt9x33rs]

I had to put a new tank in my 69 Z the old one had a hole in it.

I know that the tanks are suppose to be 18.5 gallons but I think mine may be a little smaller? It seems to fit like the original, but I recently put in only 12.5 gallons of gas in the tank while the needle was reading 1/8 of a tank? I would have expected to put in more like 15 gallons. I guess the sending gauge could be off or the needle off but was wandering if anyone else has experienced this.

Also my low fuel light use to come on at 1/8 of a tank and now it will not lite up at that level. I have not run the car with much less fuel than that so it still may lite up? It also use to lite up when I went around a turn with low fuel and nothing now. I did take my gauges out of the car when I did the work maybe something came unplugged? Any ideas on this would be helpful too.

Thanks,

[Mark]

Probably bent the float arm that the sensor works off of either taking it out and putting it back into the tank so now its off by a little bit.