Originally Posted by Rumline
Renegade won't do the rear locker install as part of the order on a Valencia. Maybe on a Classic / Ikon. I'd imagine some shop would be able to retrofit it, but no idea really.
There is no official/sanctioned way to get moar powah out of the ISB. 360/800 is as high as they go. You may be able to get an aftermarket tune done by one of the diesel tuner companies, but this may be illegal. But the gains from tuning would be modest unless you want to tempt fate on a blown engine. If you really want more you'll need to step up to the Verona at 350/1150.
Ok, I am still learning. Any idea why Renegade wont order the S2RV with the optional locker?
Also, I know there are alot of tunes able to be done without deleting emissions, which I assume would be reliable? On my last truck, a 2010 Duramax dually, I had 1,102 ft lbs at the rear wheels but it was super reliable. Of course, this was with a new turbo, lift pump, custom EFI Live tunes, built transmission, etc.