The heavier side is the drivers side with the battery, driver and gas tank being on that side......sounds like you got OEM replacement shocks instead of the ext travel ones. Ext travel only give you an inch of travel but that's about the best you can do. Every bit of lift you get comes from the down travel so youl lwant the least amount of lift pssible....the manufacture of the shock usually has them at the ideal performance setting which is usully 2" of lift. That gives 2" of downtravel or 3" if you have the ext version. You should be able to have them converted without buying new shocks.
Yeah this was my fear, I have a feeling that they are OEM replacement and not extended travel. I wonder if fox would be down with helping out and converting them as part of a rebuild perhaps.