anyone know the biggest block you can put in the rear on stock suspension?

Trying to lift the back of my truck more, anyone know ?

 

None, they already have issues with axle wrap. A proper set of springs with the additional lift is what you need. Not as cheap but not that expensive.

 

I wouldn't go more than 2" on oem shocks. You'll be topping out the shocks

 

2” works but can have issues based on driveline.

1” is best and has fewest issues.

if you’re sagging consider new springs, take a look to see if they are broken or inverted

 

Toyota seems to think a 1in block is fine as they use them in their lift kit. TRD Pro's come with a 1/2in block. You really want longer shocks to go with it though and need to extend the e-brake mount. Anything more than 1in I would get new springs. The OEM 1in blocks are actually really cheap. So are the TRD Lift Kit shocks which are longer to go with it.