the advantage line is one of gm's cheaper quality lines. I would go with some Bilstein 4600 or 5100 in the front. they will be about the same price or maybe a hair more but are a better shock. **edit, if the shocks you took off the back were bigger than the advantage line I would put the rears back on the oem nivvomatt's are hard to beat, they are pricey I think around $5-600 each or they used to be anyway