Re:2006 toypta tacoma rear suspension squeaking really bad... help
Are you sure it is not the shocks instead of the leaf springs?
If it is the leaf springs the only thing I would think would be squeaking would be the rubber bushings in the leaf spring eyes. You may want to check and see if they are worn. If they are not you could get you a needle attachment for your grease gun an try to put a few pumps of grease in them to see of that helps.