Need help 3”-4” rear block replacement to leaf springs pack

Hey everyone I’m newbie here and I have 4.5 BDS on my 15 tundra for 2 1/2 and love it
( plan upgrade to Fox coilover or Icon next couple months when I buy new tires )
but this time I want something to replacement that 3” rear block and oem leaf spring. My oem leaf spring totally out maybe.. lol . Because I was used my truck to tow heavy trailer for the past and put a lot fire woods on Her.
This time I looking for OME Dakar leaf spring or K37 full pack but seems to be like the OME dakar and k37 only get me 1.5”-2” of lift please help what else do I need CB+1+2+3 to get = 3” rear block ? Nice to meet everyone here Thank you

 

Maybe the Deaver U748 leaf springs from MCM would work. I think it’s close to 2.5”.

 

Thank you so much @vol375
And you thinks I’m still need a shackles?

 

I believe so. I’d give Matt @MCM a call, he knows all.

 

Thank you