1.5" in the rear without new shocks?

Hey guys.

Been cruising all the threads on here extremely helpful. Looking to add a little height to my 19 double cab TRD OR

I have decided i want 6112s up front, what I need to know is can I squeeze 1.5" out of the rear without new shocks?

Considering air bags as i tow a 7000lb trailer fairly regularly. However I would prefer the function of shackles and if 100% neccessary a new shock. Not looking for adjustability.

 

Truck currently sits like this stock with 270/70r18 KO2s



Planning for 35x12.5s with methods in a years time

 

The 5100s will give you back 1" of the available extension travel. You are that 1.5" more likely to over travel the stock shocks if you drop a wheel off in a hole.

 

Yes, you'll be fine. I'm running 3/2 lift with stock shocks in the rear. I'd go with schackles vs the blocks especially for towing