John Rodriguez

When's too soon for bombing? Would it be ok to get the tranny built and put a tst box at 2,500 miles?

B.Law

2500 might be a tad soon. I'd at least wait till she's broken in...

tourqamata

definatly too soon, wait until your passed manufactors recomended break in period

John Rodriguez

What is the manufacturers recommended break in period? I've read diesels don't fully breakin til 90k, and that's a bit too long for me to wait.

duner

if your just hauling the trucks mass around it may never break in

John Rodriguez

Well, I had a 500mile round trip planned just to get to the 500m mark to go over 50mph, then was planning on making a 1,200mile trip, unloaded half way with a 20' trailer, then maybe 4-5k in tow back with me. But I don't see myself towing anywhere near it's max, ever.

lit up

I hope ya'll are wrong, because I've installed mine at 45 miles! Runs great so far! Is 3000 miles to soon for twins?

i-bleed-disel

i waited till 7.6 miles to chip it 26k now and m mileage is up to 16.5 at 60mph 14.8 a70+
dada has a 03 with 47k and hes getin 18.5 these engins take 60 to 70k for full breakin thats if your haulin

BDude555

Let the bombs fall where they may!

Start as soon as you are confident there are no little glitch's with the truck that'll require you to take it back to the dealer (saves the hassle of pulling the box off for a day, then putting it back on is all)