does garden lime come in different pH levels?
No. There is regular garden lime (calcium carbonate) and there is dolomite lime (calcium magnesium carbonate). The are really no free hydrogen ions in either one of them. so they don't really HAVE a pH until you put them into solution with water. The way lime works is that when it sits in acid soil (with water) it changes some of the hydrogen ions in the soil (which make it acid) into more water and CO2.
