GMC Sonoma Pickup 1984 - 2004

I have a 2003 Chevy s10. It works for a few months. Kept my truck leveled and at good ride height with less than 500lbs. Now I have a consistent 300lbs in the back and the rear sagges. No roll over but it is starting to sag. Also customer support has ensured me the springs cannot be upgraded to HD heavy duty springs cause “the design is different”. I can confirm these are great for stability and to prevent roll over. Not great to maintain any type of load for long periods. Definitely would not recommend if needing to move heavy loads consistently. I would go with Timbren.