Forum Discussion
dleslie125
Oct 20, 2012Explorer
IAMICHABOD wrote:dleslie125 wrote:IAMICHABOD wrote:kaydeejay wrote:
Just being curious - I never hear mention of the Duramax in Chevy based Class Cs any more. I know GM offers that engine in the 1-ton vans, is it not available in the RV Cutaway chassis.
That would be a great combo for drivability AND mileage.
.:B
Yes they do! As no other American Made Cutaway can offer.
As shown here. Great combo for driveability AND mileage.
Express Cutaway 4500
Or Here.
Chevy Cutaway
Interesting video also.
Seems to me that you missed the question - Duramax for Class C motorhomes. I don't see that either the 3500 or 4500 is offered with the Duramax for a Class C. Is that the case.?
.
Seems that YOU did not read all of the post where in the second clickey it says Quote, Special-equipment packages are available for ambulance, RV, shuttle bus and school bus construction.Including the 6.6L Turbo diesel Duramax.
As I recall An RV Built on a Cutaway Chassis is In most cases are called a Class C.
And being available I think would mean that they are offered for that use.
Maybe something is being missed in the translation from American English to Canadian. Ehy.
Please point us in the direction of at least ONE manufacturer who is using the 3500 or 4500 with the Duramax? Can you?
By the way, I pointed out the HP and torque offered for the Duramax and perhaps in your role as GM Evangelist you didn't consider the fact that the diesel weighs much more than the Vortec. The result is likely similar to what MH manufacturers found with the Ford E450 with Powerstock - a much higher price (the diesel is NOT cheap) and less CCC (due to the engine weight). The use of a higher HP and torque Duramax version would also require a really expansive transmission upgrade to the Allison, which we had on our Kodiak units (several thousand $$$ more). So, would buyers shell out something like $20,000 extra without getting ANY increase in the GVWR (note in the specs you linked it was still 14,500 lbs). My gasser Kodiak Jayco Greyhawk had a GVWR of 19,500 lbs (8.1 Vortec) and had great CCC. The diesel version (Seneca) was much heavier with a GVWR of 22,000 lbs but that meant I could not tow my Tahoe LTZ (GCWR remained at 26,000 lbs) - so that is why we went with the gasser which was able to tow the Tahoe reasonably well.
About Motorhome Group
38,762 PostsLatest Activity: Nov 29, 2025