The hot water shutoff valve under our bathroom sink is leaking from somewhere near the stem.

I bought a new valve but am having trouble removing the old one. I just used Liquid Wrench to get the valve body off the main input line.

Any advice on the best way of going about this? I don't want to make a bigger problem.

Thx!

On the old valve, remove the bonnet nut and take the guts out. Install the guts of the new stop.