(09-22-2019 )Rawze Wrote: 3:36's is totally a turn-off for me.
You say your going to be in the hills a lot with it, and heavy half the time. Your going to hate those rears, its goign to feel like a big dog turd, and sucking fuel unnecessarily because of those terrible rears.
- if you end up with that truck, do yourself a favor right up front ... replace the rears with a set of 3.79's instead of continuing to torture that engine. Can likely be done for about $4,500 ~ish with a set of weller remans.
the ISX will last its longest and perform its best at the 1600 - 1650 rpm range, and pulling hills at high boost levels with the engine turning below 1400 is downright abusive to the liners. Spec the rears so that you can pull the steep hills between 1500 and 1800 rpm range, keep that rpm up there, and engine will last a long time. otherwise your looking at an inframe by the time it gets to about 560-580k miles with an operation like your describing and those tall engine abusing rears.
Thank you for your input and advise!!
