"Huffy" brand is a cheap brand, and the rims are most likely single walled. One way of finding out if you rims are single walled or not, is by taking out the valve, and if you see two walls (one cap) there twin walled or a single wall.
Just get an new rim, it's going to be better for you in the long run, just remember, you might consider getting a thicker tyre for the front tyre, because your front tyre takes all the knocks and bumps, having suspension softens the damage too.
I've got a brand new Swinn mountain bike, with front 'rock-shocks' and twin walled rims, and it makes a big difference