Rear suspension feels lofty and bit soft

[landarcht]

I'm looking for suggestion for best OEM heavy duty springs to replace my original 2005 LC100, I don't have lift kits, it's all stock.
Shocks were replaced about a year ago.

 

[Sandroad]

New OEM springs with Airlift airbags could fix you right up.

 

[landarcht]

I'm hoping to just replace Springs and shocks every five years or so because I heard airbags also have lifespan and would like to avoid extra replacement spending if possible. I'm basically looking for more of a long term reliable solution, whichever that will last me the longest with optimal ride.