The only way to tell if it is sealed up is to fill it with water or float it in the water.
nice work, do you have to cut the carpet to lay backdown.
Do you have a regulator and just need a bottle? or do you need the whole setup?
2 front tubs in 1 year, I'll bet not many people can say that.
I believe you got 22 gaugeI can't remember. I just go to lowes and get a sheet that's about 12x24". It's pretty thin, but when it's all boxed in it gets tough.
Lets you burn through with the girliest of welders.... It's pretty thin, ....
For future reference (tranny cooler)