Good Sam Club Open Roads Forum: Anyone using a Andersen Ultimate on a 2020 GM truck?
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 > Anyone using a Andersen Ultimate on a 2020 GM truck?

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Njmurvin

Simi Valley

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Posted: 07/17/20 12:25pm Link  |  Quote  |  Print  |  Notify Moderator

Yup. I installed mine. My pinbox is fairly short so I didn't have any problem using the AUH in its standard positions giving me a total of 9+" of offset. With the 6'11" bed length in the 2020 GM truck, I have a mile between the trailer and cab. Short test drive confirmed no contact with bed rails, tailgate and especially cab. Plenty of clearance. I only went around the block as I haven't finished the non-towing break in of the truck. When I take it out for real I'll know if I have any chucking issues. So far, I love it. I went from the heaviest 5th wheel hitch in the business (Superglide)to the lightest.


2020 Chevy Silverado 3500HD Duramax 4x4 Crew Cab Standard box

2011 Arctic Fox 27.5L

2001400ex

Veradale, WA

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Posted: 07/19/20 08:55pm Link  |  Quote  |  Print  |  Notify Moderator

I used the Andersen in my 08 Duramax and now my 2020 Denali. I only have one trip about 50 miles away and it handled well, still a little more bucking than I prefer but not bad. My clearance is good with the funnel "backwards" meaning the pin box is closer to the cab. I haven't tried to go 90 degrees but it's made the clearance for what I need it to.


2017 Forest River Stealth SA2816
2020 GMC Denali 3500 Duramax
Anderson ultimate fifth wheel hitch

Njmurvin

Simi Valley

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Posted: 07/23/20 02:27pm Link  |  Quote  |  Print  |  Notify Moderator

2001400ex wrote:

I used the Andersen in my 08 Duramax and now my 2020 Denali. I only have one trip about 50 miles away and it handled well, still a little more bucking than I prefer but not bad. My clearance is good with the funnel "backwards" meaning the pin box is closer to the cab. I haven't tried to go 90 degrees but it's made the clearance for what I need it to.

Interesting. I finished my break in and took it out for a longer test drive (about 20 mile r/t) up and down a small grade to see how it towed. I have the hitch and adapter both in the "standard" locations for the maximum offset (moving the trailer 9" back). I have a very similar truck to yours (towing wise) and didn't notice any abnormal bucking. I have the Z71 package with the off-road shocks. Maybe those stabilize the bucking sooner? Could be a difference in trailers. Mine is 12k lbs fully loaded.

I'm taking a trip next week to the mountains for a real test. I'll update this thread if anything changes.

2001400ex

Veradale, WA

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Posted: 07/23/20 03:14pm Link  |  Quote  |  Print  |  Notify Moderator

Njmurvin wrote:

2001400ex wrote:

I used the Andersen in my 08 Duramax and now my 2020 Denali. I only have one trip about 50 miles away and it handled well, still a little more bucking than I prefer but not bad. My clearance is good with the funnel "backwards" meaning the pin box is closer to the cab. I haven't tried to go 90 degrees but it's made the clearance for what I need it to.

Interesting. I finished my break in and took it out for a longer test drive (about 20 mile r/t) up and down a small grade to see how it towed. I have the hitch and adapter both in the "standard" locations for the maximum offset (moving the trailer 9" back). I have a very similar truck to yours (towing wise) and didn't notice any abnormal bucking. I have the Z71 package with the off-road shocks. Maybe those stabilize the bucking sooner? Could be a difference in trailers. Mine is 12k lbs fully loaded.

I'm taking a trip next week to the mountains for a real test. I'll update this thread if anything changes.


Yeah the bucking wasn't bad in any way. Just more than I prefer, more just bouncing on highway joists and such. Probably completely normal. I've been debating getting the Gen Y goose pin box. More to eliminate the 5 minutes if taking i the hitch in and out.

cummins2014

Utah

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Posted: 07/23/20 06:35pm Link  |  Quote  |  Print  |  Notify Moderator

2001400ex wrote:

Njmurvin wrote:

2001400ex wrote:

I used the Andersen in my 08 Duramax and now my 2020 Denali. I only have one trip about 50 miles away and it handled well, still a little more bucking than I prefer but not bad. My clearance is good with the funnel "backwards" meaning the pin box is closer to the cab. I haven't tried to go 90 degrees but it's made the clearance for what I need it to.

Interesting. I finished my break in and took it out for a longer test drive (about 20 mile r/t) up and down a small grade to see how it towed. I have the hitch and adapter both in the "standard" locations for the maximum offset (moving the trailer 9" back). I have a very similar truck to yours (towing wise) and didn't notice any abnormal bucking. I have the Z71 package with the off-road shocks. Maybe those stabilize the bucking sooner? Could be a difference in trailers. Mine is 12k lbs fully loaded.

I'm taking a trip next week to the mountains for a real test. I'll update this thread if anything changes.


Yeah the bucking wasn't bad in any way. Just more than I prefer, more just bouncing on highway joists and such. Probably completely normal. I've been debating getting the Gen Y goose pin box. More to eliminate the 5 minutes if taking i the hitch in and out.


Most likely a MorRyde pin box would solve the chucking if you don’t have one .

Njmurvin

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Posted: 08/04/20 06:17pm Link  |  Quote  |  Print  |  Notify Moderator

For anyone interested, I completed the maiden voyage from Ventura County to Big Bear. This involves a bit of climb (as high as 9000ft in places) and twisty roads. The truck is a beast at towing. I never felt a need for more power and between the 10 speed trans, tow/haul mode and exhaust brake, I felt more than confident descending the mountain with 12K lbs in tow.

The Andersen hitch performed flawlessly as well. Sure, there is a bounce when it hits a large bump in the roadway but the shocks on the truck settle it down almost instantly. I have an Airborne pin box with a shock and airbag. That might contribute to the stability. I have the AUH in its standard position with the ball back and the pin box adapter cup forward giving me 9+ inches of extra cab clearance. I'm not sure I need it because it seems like there is a mile between the trailer and cab - even in the sharp turn I have to make in my culdesac to park it in my driveway. FWIW, I bought the safety chain kit even though it is probably not necessary. I just want to avoid any potential issues with overzellous CHP officers and it provides a little extra peace of mind.

Cummins12V98

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Posted: 08/04/20 06:40pm Link  |  Quote  |  Print  |  Notify Moderator

TxGearhead wrote:

I have no idea about Andersen, I have a Pull Rite single point which is essentially the same. Pull Rite says the Chevy under bed "joists" are not where they would support the Pull Rite and they require a kit to fix that. I don't know where the Andersen feet would sit in the bed, that may be something to check with Andersen.


Pull Rite understands bed deflection, Andersen does not.


2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

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sayoung

Tx

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Posted: 08/04/20 07:43pm Link  |  Quote  |  Print  |  Notify Moderator

Cummins12V98 wrote:

TxGearhead wrote:

I have no idea about Andersen, I have a Pull Rite single point which is essentially the same. Pull Rite says the Chevy under bed "joists" are not where they would support the Pull Rite and they require a kit to fix that. I don't know where the Andersen feet would sit in the bed, that may be something to check with Andersen.


Pull Rite understands bed deflection, Andersen does not.


I had no damage to my 2012 Chevy bed after bending two different series of Andersens . My truck bed is tougher than thier hitch which as I have posted before I will never ever use again.

Cummins12V98

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Posted: 08/05/20 09:27am Link  |  Quote  |  Print  |  Notify Moderator

Hitches that sat on the bed used to be fine as the beds were much stronger. My 18k B&W Companion from 2005 was great on the bed of my 98 rAM but installed on my 11 RAM I did get bed deflection. B&W has changed their bed mount Companion since and deflection is not an issue. Sad another manufacturer has not stepped up to correct this issue.

Njmurvin

Simi Valley

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Posted: 08/05/20 10:52am Link  |  Quote  |  Print  |  Notify Moderator

I checked with Andersen about the bed support requirements for GM trucks. They told me specifically that the 2020 models were redesigned and did not require any reinforcement. I used a thin rubber mat under the AUH and when I removed the hitch and mat after my first trip. There is not a trace of evidence that the hitch has ever been in the truck bed. Doesn't the truck's gooseneck ball provide the bulk of the support?

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