(guitar riffs)
- Hi, I'm Nick with duramaxtuner.com.
You know, I kind of get tired of hearing
'06 and newer Duramax owners
rag on the older trucks for a host of issues,
most of them can be fixed,
but for also being 5-speed trucks.
It's one of the things they always thumb their nose
at the older owners about;
they don't have six gears.
At duramaxtuner.com, we went through the trouble
and set a valve body and TCM up
to give those '01-'05 guys 6th gear.
Yes, it's already in the transmission.
The gear ratios are there, the clutches are there,
the planets are there.
All the hard parts are there for it.
GM just didn't opt for it.
So, here we go.
TCM valve body upgrade from duramaxtuner.com
is gonna get you that sixth gear.
It's gonna get you that overdrive from 0.71 in 5th
to 0.61 in 6th gear,
15 or 14 percent drop in rpm.
Yes, nice for mileage,
but also nice for noise, vibration,
harshness in the cab on the highway,
especially you guys with modified trucks.
As we know, when you modify these trucks,
usually they don't get quieter; they get louder.
You put a big exhaust on it, larger turbocharger,
air intake, that sort of thing,
the trucks get louder.
So what's nice is we can cut 350-400 rpm off
during cruise.
Just keep the truck in its sweet spot.
Keep it in that 1750-1850 range
instead of humming over 2000 rpm on the highway.
To show you what I mean, let's take a ride.
(rock music)
So we're just jumping on the toll way here.
We're in a 2005 LLY.
It's got 300,000 miles on it.
Just did one of our 5- to 6-speed conversions,
and I have the truck tune set up
so it'll hold 5th gear in tow/haul.
And that's how I'm able to show you the sound
in 5th gear as we get up to speed.
And so, this is the sound you may be used to.
This is just cruising along at 80 miles an hour,
let's say 77.
RPMs are 2230,
2250 rpm at 80 miles an hour.
And this truck has a muffled exhaust sound.
It's got a 4-inch muffled kit on it.
It's not a loud truck.
It's got a stock turbo on it.
Just a standard 500-horse truck.
And all day, right?
2200-2250 rpm.
I go to 6th gear.
I get 1930 rpm.
And that's 80 miles an hour.
So I'm still under 2000 rpm at 80.
And the truck just feels like
it's in its happier place.
I don't have to push the throttle as hard.
It's a smoother ride.
Soundwise, it's less.
Any time you can cut rpm off a truck at cruise,
your mileage is gonna go up.
A mile and a half to the gallon on the highway
is not uncommon, especially if you're traveling
at high speed.
Now any rpm change we quote,
that's different based on rpm,
so rpm changes 14 percent.
So, the faster you go,
the more rpm you're gonna cut off your run.
Essentially, the faster you drive,
the more you need this.
The other 6-speed conversions allow the Edge CTS
to correctly read what gear you're in.
With our conversion, CTS reports the proper gear
and torque converter clutch lockup.
If you're interested in a 5- to 6-speed conversion
that correctly displays the gear on the CTS,
that allows us to adjust your shift schedule
based on turbocharger size
to get the most out of your truck,
that runs and shifts and drives great,
and will cut rpm and noise out of your ride,
give us a call at duramaxtuner.com.
(815) 568-7920.
(hard rock music)