Noob question on lifting rear by 1"

Someone please school me on lifting rear suspension by 1". I already have Bilstein 5100 in front (currently at middle setting for leveled ride) and i want to put the truck up by 1 more inch. So while i can lift front by about 1", what do I do with rear? Is it enough to put longer shackles keeping factory struts? Or do i need shackles AND 1" spacers for struts?

 

You can simply add a 1” block in the rear.

 

Really? Without shackles even??

 

An extended shackle (like one from Coachbuilder) will provide you with additional height and ride improvement while a block has the tendency to induce axle wrap.

https://shop-coachbuilder.myshopify...ilder-2-shackles-provides-1-25-of-actual-lift

https://www.infobloom.com/what-is-axle-wrap.htm

 

All right. But aside from shackle, do i need a spacer then?

 

No, the shackle does the lifting - you don’t need a spacer. You’ll want a carrier bearing drop depending on how much lift you go with to maintain your driveline geometry. The kit I linked comes with it.