My 2500 has a lot more presure than that. I take it to the dealer or a shop that works on breakers and have it done right. I don't know of a tire shop that would charge it in my town. Is it not hitting hard?
if you blew it up you need to reseal it which means loosen the tie bolt which are torqued to 600 ft lbs. Unstack all the parts pop the piston out check for damage get seal kit reassemble and get a bottle of nitrogen and the proper charge kit to recharge and go to town