Make sure you're comparing apples to apples. The US springs may be inferior Chinese items.
I just checked RockAuto for a 1990 Siverado 1500 with a 5.7, and they are around $250 depending on how many leaves you order. $100 seems awfully cheap.
-- Edited by hemi43 on Monday 7th of April 2014 06:10:03 PM
I dont think you will find them cheaper anywhere in Canada I had checked for hangers for my ranger and ATS suspension was half the price of anything I could find here including shipping . Looked online for your 90- 1500 3 leaf stock 93 bucks , 4-106.00 , 5- 131.00 you can call and ask but they shipped the hangers USPS not sure about springs .