What is the biggest tire size I can run without trimming?

[Ricky Falcon]

I have a 2014 ram 1500 that's on a 4 inch lift on 35s right now but I want to bump up my tire size. If I want to run like 37s or something should I be able to run them without trimming or should I move to a bigger lift to run them?

 

[Ricky Falcon]

This is what it's at now