Peterbilt vs Kenworth

Finally traded my 2006 KW W900L day cab. 210" wheel base ACERT, 18 spd 3:55 on AG400. I bought it brand new in February 06. sad to see it go but with the day cab it was time. Looked around for 6 months before finding a 2013 Peterbilt 389 glider, used. It's a 228" wheel base with a 36 inch bunk. 6NZ 18 spd 3:73 46k on air trac.
I've had the Pete a few weeks now. I like the truck over all but.... who in their right mind would buy a truck with air trac? What the heck was Pete thinking? It's a good thing it has full locking rears as it gets stuck in its own shadow. My old W9 would go places with out the power divider locked that the Pete can't go locked in. (Like the end of my driveway)! The Pete does ride better but it has a lighter front axle, it's longer, the cab air ride is softer all of that adds up. From what I've read here, all you read are complaints about the AG style suspension... I'll take it over air trac.
And I always wanted the mighty 6NZ. What a let down. I'd rather have my old ACERT. 6NZ has more top end power and probabably a higher hp number but if you dyno'ed them the ACERT would have more order the curve. The 6NZ on the interstate is good but really lacks on skinny hilly roads.
On the plus side the Pete with the longer wheel base will turn a lot sharper than the W9. And did I mention it rides better.
Its a good truck.........It'll take time and I'll get used to it.
Well that's my take anyway.

 

The ACERT was tuned but so is the 6NZ. I've had the truck for two weeks couldn't take it after the first one. Don't get me wrong it runs good and is strong just not like the ACERT.
I'm just complaining and missing my old truck. But I don't really want it back if that makes any sense. I've spent one night in the Pete. I got up in the morning and could walk.