I don't have your lift and cant speak to the height. But I do have a set of rear coils from my Toytech Boss lift. I had these on for 3 months before upgraded to the HD version, to help with all the extra weight I added (RTT, Drawer system, winch etc).New these are $210 plus shipping, asking $100, plus shipping. If interested send me a PM.


Specs from Toytech Website below:
RCC2.0 - Toytec Superflex Rear Coils

These coils are custom made to our specs for a stock like ride and great flex and performance off road.

Provide approximately 2" of rear Lift
10% increase in load capacity/spring rate.
With 8 coil winds these rear coils will handle more load without sagging and still maintain a great ride.
Superflex coils will also flex better than any other coil on the market when paired with extended length shocks.
Sold as a pair