Are you talking about insulators for the rear springs or front springs?
The insulator for the rear spring--upper and lower end--is 10247105, which lists for $9.02, cost is $5.41, and you should be able to buy it for alot less than that. They are not very good, when compared to the Moog or other poly items available.
The front insulator (upper end of spring only) is 15597425, list $6.73, cost $4.04.
I'd find another dealer, or look in the aftermarket.
Moog has a rear spring insulator, P/N K6203-2, that costs about $3.30 each at jobber price, and is a much nicer piece than stock. Energy Suspension does have parts also--for both front & rear, I think.