What can I use from my current lift?

I have a 2021 trd offroad with a 3.5inch rough country vertex lift. Vertex coilovers in front for 3.5 inches of lift and aftermarket rough country leaf springs and shocks in back. My question is I want to go to 6inches. Can I retain anything from my current lift? I want a 6inch lift. Do I need new coilovers? Or can I put spacers on the ones that I have? Also what about the rear? I know everybody's against the 6inch but work with me here pls. Much appreciated!
Included a pic of my current lift.

 

A 6 inch lift requires a drop bracket and new spindles. It also requires cutting frame crossmembers so it's not exactly reversible.

As for what's reusable, not much.

 

Fully reversible as long as you save the piece removed from the crossmember (welding is required however).

You can reuse your coilovers, BUT, in order to do so, you will need a custom-height spacer that will not allow the suspension to over-extend (it will need to be shorter than the spacers that typically will come with the 6" lift).
You need to compare the fully-extended length of your Vertex lift shocks to the length of an OEM shock (preferably hands-on, rather than by simply looking up shock specs on the 'net). The difference in shock length is how much shorter the required spacer needs to be in relation to the spacer that comes with the 6" lift.

For the rear, you can simply add in a 2" block with your RC springs. A shackle inversion could help as well (perhaps with a 1" block rather than 2"). Otherwise you're likely looking at new (possibly custom) leaf packs (there doesn't seem to be a lot of off-the-shelf leaf spring options available for more than 3" or so lift).
Regardless, you will need new (longer) rear shocks (I wouldn't suggest messing with shock spacers on the rear).

 

My question is why?

Looks?

 

Why on earth would you want a 6” lift other than looking like a tool? Lol

 

why do you need a 6 inch lift?

 

Because twice what most say is max is always better.

 

Why stop at 6 when you could do a 9 inch lift, fuck it go for a full 12!!
Don't let anybody tell you NO, you got 1 shot at this life and sittin down everytime somebody says you can't or it's impossible is setting limits on your passion and allowing others to control your life, they're trying to keep you down because they're jealous and they don't want to see you succeed where they failed.
I say GO FOR IT!!

 

guys, we all agree that 6" is too much.....but that is his choice. work with him. if you have info to add, go for it. if not....move on.

 

It would probably be best to sell everything from mirror 3 inch lift and purchase everything as a kit for the 6 inch. RC lift components aren’t the highest of quality anyway.

I found through the years if cobble things are cobbled together, they rarely turn out right. With suspension components, drivability is normally garbage & the likelihood of rattles and clunks is high