[Hersbird]

Today driving unloaded around town starting in 2nd, then just going 4th and 6th seemed to work pretty good shifting at 2000 rpm.
My truck has a cat or something between the turbo and the muffler that looks like a cat. It is a pretty beefy looking 4" system from the turbo back.
I'll do a 60 mph run after work to check RPMS.

I'm debating if I want to change all the fluids myself or just take it in. I think I just want to add gauges for lift pump pressure and EGT and then a Smarty JR basic tune and the bigger tires.

I was looking for an early 04 or 03 HO but they were either trashed or expensive. I was almost ready to go with a 01-02 HO but am glad now for the extra cab space.

Update: the RPM at 60 mph is about 1750 so that is 3.73 for the gearing. Those other tires would reduce that to 1665 rpm at 60. Or be the same as changing to 3.56 gears.