2007 Jayco Duramax Engine/Tranny questions LLY or LBZ 5 or 6 speed
So i just bought an 2007 loaded Seneca 35gs with 40k miles for about 60k. 1 owner rig
Im a duramax guy, i have 3 of them now, i cannot for the life of me figure out online what engine RPO code this is. 8th digit is a 2. which most people claim is the late LLY which is really a LBZ with LLY tuning?? Can anyone confirm this?
also is the Allison a 5 or 6 speed? It does not have the tap shift like the regular trucks do on the shifter but i can't find any picture on google of any c5500 trucks with the tap shift. I have read if you have a 5 speed its really a 6 speed without the tuning for 6th gear?? and you can unlock it from a flash tune
causing at 60mph RPMs are right about 1750RPM. I haven't gotten it to 70 yet to check the RPMs It feels like theres a 6th gear but that could be the Torque converter locking up also, I'm not sure. But it doesn't unlock when you tap the brake pedal as most GM's do when in lock up
anyways just looking for some answers on this, mainly cause i like knowing what i have.
Thanks
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