Sierra 3500 Duramax towing

I don't know about the disk brakes. The tow package I think is the receiver on the rear and it's plug. The under bed 5'th wheel prep will not fit your Pullrite. B&W & Curt make hitches for it, I have the B&W for mine.

TVDOC wrote:

Considering purchase of '18 3500 Duramax in a Denali pkg. The dealer cant tell me if the IBC will control my Titan EOH disk brakes on the trailer.

The IBC controls my Titan pump just fine, but you need an optional resistor or a spare electromagnet to fool the IBC self test.

I took delivery of a 2018 3500 Denali last Friday. The package you want is this:

Z6A

GOOSENECK / 5TH WHEEL PREP PACKAGE -- HITCH PLATFORM
TO ACCEPT GOOSENECK OR FIFTH WHEEL HITCH. Includes Hitch
platform with tray to accept ball and drilled box holes with caps installed,
box mounted 7-pin trailer harness (similar to (UY2) harness). (Requires
model T*35**3, (Z82) trailering equipment, (CGN) spray-on bedliner and
trailering mirrors (DF2), (DPN) or (DQS) . Not available with (UY2)
Trailering wiring provisions, (ZW9) pickup box delete, (9J4) rear bumper
delete, (VBR) rubber bed mat, LPO, (PDH) Interior Interior Protection Package,
(VBN) bed rug, LPO or any ship thru code.)

I haven't towed with it yet (I'm only up to 500 kms so still doing the non-towing break-in) but I did drop a new B&W Companion into the bed. It's a nice setup.

The ride is sweet, much nicer than the 2011 F-350 SRW. Hopefully the same holds true when towing.

I am waiting for my 2018. It will not be here until March. How far do you have to go before you tow? Keep me posted on how yours is working. Did I read yours build sheet right? You deleted the pickup box and rear bumper?

grizz272 wrote:
I am waiting for my 2018. It will not be here until March. How far do you have to go before you tow? Keep me posted on how yours is working. Did I read yours build sheet right? You deleted the pickup box and rear bumper?

This is right from the owner's manual:

. Do not tow a trailer during the first 800 km (500 mi) to prevent damage to the engine, axle, or other parts.
. Then during the first 800 km (500 mi) of trailer towing, do not drive over 80 km/h (50 mph) and do not make starts at full throttle.

I've warned DW that the first day towing is going to be looooong!

Those specs are saying that the option isn't available on those items: "Not available with..." then a list of stuff you can't get with the package. It's not worded that well, that's for sure.

Thanks for the replies. Good to hear from some others who have pulled the trigger on this truck. I've heard that an old brake-magnet or resistor is necessary. I'll have to get the details on what value and wattage resistor to use and where it connects in the circuit. Anyone have any of that info by chance? I have a P3 (from my RAM) that I can always use as a backup if I cant figure out the resistor thing.

With the price of the truck, I dont want to change hitches yet. Someday I may change to an Andersen ball hitch for my 5er but the PullRite still works for the time being. I have a delivery date of early April and a 5000 mile trip planned for the end of April. Gives me time to get the hitch and brake stuff taken care of but I guess it'll be slow going the first 2 days of the trip.

Deleted

In regards to the IBC, the new Trucks DO NOT need the interface adapter/resistor the older trucks did. The new ones can detect the resistance and adjust for either standard electric drum brakes or electric over Hydraulic Disc.
I just removed the interface unit from our 5er since we no longer need it with the new truck.

Michelle.S wrote:
In regards to the IBC, the new Trucks DO NOT need the interface adapter/resistor the older trucks did. The new ones can detect the resistance and adjust for either standard electric drum brakes or electric over Hydraulic Disc.
I just removed the interface unit from our 5er since we no longer need it with the new truck.

I can't speak for GM, but my '14 Ram 2500 has options in the trailer brake setup for Electric Over Hydraulic. All the OEM's seem to follow each other's leads so I'd find it tough to think GM would over look the need for EOH control in the IBC.

Yes, by all means get the Z6A trailering package but I doubt your Pullrite will fit directly into the factory pucks. I installed the OEM kit in my RAM and would highly recommend this option to anyone wanting to tow a 5th wheel or gooseneck. The setups are really slick and allows the bed to stay completely clean while putting the 5th wheel hitch directly on the frame rails.

You can probably get a picture frame adapter for the OEM kit that will give you generic 5th wheel rails. If your Pullrite will mate up to to generic rails this is probably your cheapest option. This Demo RV 5th wheel rail adapter seems to be the only option offered on the Etrailer.com web site.

KJ

I used my business choice money to put the GM (Curt) gooseneck ball in the bed. I use a Curt adaptor that goes down the hole where the ball goes and gives you RV rails to use your fifth wheel hitch in my case Curt Q20 hitch. If you don't need a gooseneck hitch maybe this isn't attractive, but what is nice about it is I don't have bed rails in the bed. When I am not pulling anything I can turn the ball over and it is flush with the bottom of the bed.

As to the 2018 Dmax and pulling. Pulls like a freight train, I have been running at or above max GVW and it pulls and stops very well. I am very pleased with it. It is much improved over the 2015 I traded in.