Truck Not Level Springs Sagging?

[89formularoth]

My 2004 Sierra SLE 4.8L is sitting lower on the driver side by about 1-2 inches. It only has 80K miles on it, so I have trouble believing that the springs are sagging already. Only suspension work I've ever done on it was to replace shocks @ 40K with aftermarket shocks from Edelbrock (which were nice, but had one fail within 2,000 miles). I recently towed a 1989 Firebird Formula from Fresno, CA to Mount Vernon, WA (about 1,100 miles). A friend of mine suggested that I may have tweaked the frame by doing this. Any thoughts?

[Pete95Sierra]

a lot of people have brought this up, i think it is normal. maybe cuz of the gas tank on that side and the extra weight?

[Z71_guy]

GMs are notorious for this, dont know why but both my trucks had the GM lean

[dwill3015]

Welcome to the site!

[tbplus10]

GM isnt the only manufacturer to have this problem (take a look at the next 96-04 4x4 Toyota Tacoma you see) it's your springs more than likely. The correct remedy is to replace both front springs (the left front is sagging also, it's just not as noticeable). There's a few cheap quick fix's available, and they'll give you exactly what you pay for, a cheap quick fix that requires attention soon.