I’m 16 and just got my first truck 06 ranger 2wd and at first I was skeptical about having a ranger but it’s really growing on me I just bought 2.5 inch rear lift and a 3 inch coil lift in the front what size tire do you think I could fit on there with minor plastic trimming/anything helps

 

Welcome to the forum

32" would probably be the limit

If you look up the tallest stock tire size, which on a 2006 2WD was probably 29" and then add your Lift, 3", that would be an indicator that 32" should be fine

 

please be advised by doing this your truck will become a LOT slower and your speedometer will read too low, AKA if you aren't careful or don't get your speedo reprogrammed you are going to get pulled over a LOT for speeding. The solution is reprogramming the speedometer, or regearing the rear end (better idea)

 

You could probably put 31s on it and look pretty good. I suggest getting thunderer trac grip mt tires. $700 for a set and their EXCELLENT tires