I have read several threads concerning this topic but couldn't find my answer. I would like to level my truck and I would prefer to go with the Bilstein shocks. My truck only has 20k miles and I don't see any reason to change out the rear shocks at this time. Is there any reason why I can't just swap out the front shocks to level the truck?

 

1 reason would be ride quality. the bilsteins are far superior to the factory shock. i would reccomend forking out the extra now for the rears. However to really answer your question, there is no problem with leaving the factory shocks in the rear.

 

There is nothing that says you MUST change all 4 shocks. But once you've changed all 4 you'll understand why it was worth doing. Rears are only another 130 or so and very easy to swap.

 

The reason you should swap out the stock shocks front and rear are that the are 100% garbage. I swapped out my shocks at 28k and they were shot, completely dead. Do all four and you wont be sorry.