I have my truck leveled and I am ready for some new tires. I am stuck between the 305 or the 315. I have read everything I can find about pros and cons of both sizes and I would just like to hear from anyone with 315's that have the manual transmission. How much did it affect your performance? I have really only heard how it affects the automatic. Most that go with the 315 get a pcm tune, but again there are not many that have the tune with the manual transmission.

Anyone with some insight would be much appreciated. My brain hurts from thinking about this so much...

 

I have 315's and a manual transmission but they are a second set for weekend wheeling. For the Monday through Friday commute, I still have 33's. I honestly haven't had the 35's on long enough to get a good assesment. I was most worried about power loss offroad and it seems negligible. On road it seemed about the same as the 33's to be honest. I just got the PCMForless tune, so I'll let you know if that makes a difference. I'll be wheeling next weekend and getting a little roadtime so I'll be better able to report back on road manners.

 

Great! Thanks!

 

Ok went with 315 75 R16 Goodyear Duratrac

Drives and looks amazing! 5 speed rules!