What Hitch for 2020 Chevy GMC 2500HD

**PJOB** · 04-03-2020, 05:21 AM

Newbie here. We have a 2020 Reflection 303 RLS and were all set to install the Andersen 3220 - Aluminum Ultimate 5th Wheel Connection 2 - Gooseneck on our new 2020 GMC 2500 HD, only to discover it does not fit. More specifically , "due to the build of 2020 Chevy & GMC Trucks, the Ultimate Connection will not provide enough clearance". (Tail gate and side rail clearance)

Recommendations? We wanted the Andersen because it was light weight, easy in and out. We were prepared to forego the 90 degree turn that a slider might give. Looking for the advice, wisdom and experience of my new colleagues here on the Forum.

Thanks in advance!

**The Bone** · 04-03-2020, 07:46 AM

I love my B&W. Its not the lightest hitch and I am not sure how many times you remove yours from the truck. I am 67 and I take mine out by myself. If you have the gooseneck on your RV they do make a extension or a different pin box so you can just put the ball in the bed. If your RV is under warranty, you need to call GD to make sure you don't void your warranty.

**SGT ROC** · 04-03-2020, 10:24 AM

I have the Curt Slider A16 (16000 lbs) Works great. Can be removed in two pieces easily by one healthy person. I use a chain hoist to take mine out in one piece and put it on a mount I made which allows me to move it wherever I want in the garage. Only take it out in late Fall. May not put it back in till mid summer the way things look

**Canyonlight** · 04-03-2020, 10:50 AM

Originally Posted by PJOB

Newbie here. We have a 2020 Reflection 303 RLS and were all set to install the Andersen 3220 - Aluminum Ultimate 5th Wheel Connection 2 - Gooseneck on our new 2020 GMC 2500 HD, only to discover it does not fit. More specifically , "due to the build of 2020 Chevy & GMC Trucks, the Ultimate Connection will not provide enough clearance". (Tail gate and side rail clearance)

Recommendations? We wanted the Andersen because it was light weight, easy in and out. We were prepared to forego the 90 degree turn that a slider might give. Looking for the advice, wisdom and experience of my new colleagues here on the Forum.

Thanks in advance!

Your post is of interest to those of us looking at the new generation GM HDs. There have been a few here with the 2020s sharing that the new fiver/goose platform dimensions are different and thus prior hitches (most if not all brands) will not fit. The good news is that they are working on redesigning the hitchs to fit and/or introduce brackets to make prior hitch models fit the new 2020 GMs..

I am curious about your feedback on not enough clearance for the tail gate and side rails. Where did you learn this (only for the Andersen ?) and do you know what the specific differences are ?

Thanks, Dan

**m&mjones** · 04-03-2020, 12:13 PM

There's a thread here: https://www.mygrandrv.com/forum/show...788#post282788 that has some more info that I replied to as well. It may help.

With my non-slider hitch, I have no problems with interference, that is to the sides and tailgate. I haven't tried to make a 90 degree turn, but close, also with no problems.

**jasonl78** · 04-03-2020, 12:21 PM

Pardon my ignorance but can someone explain what the GM folks did to the back end of the truck to cause these issues?

I run a Ram 3500 Megacab with 6'4" bed AND I have Ramboxes. So not only do I have the shortest bed of the big 3 but I also have a narrower bed. I have an Andersen 3200 and works great. Is that why? Difference between rail mount and gooseneck versions?

And so it's clear I'm not saying its perfect for every truck or every situation. But it solves clearance issues for my truck and the situations I put myself in. Mostly curious what changed in the GMs that don't make it a viable solution.

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**PJOB** · 04-04-2020, 07:11 AM

Originally Posted by The Bone

I love my B&W. Its not the lightest hitch and I am not sure how many times you remove yours from the truck. I am 67 and I take mine out by myself. If you have the gooseneck on your RV they do make a extension or a different pin box so you can just put the ball in the bed. If your RV is under warranty, you need to call GD to make sure you don't void your warranty.

thanks - what is the year and make of your truck?

**PJOB** · 04-04-2020, 07:19 AM

Originally Posted by Canyonlight

Your post is of interest to those of us looking at the new generation GM HDs. There have been a few here with the 2020s sharing that the new fiver/goose platform dimensions are different and thus prior hitches (most if not all brands) will not fit. The good news is that they are working on redesigning the hitchs to fit and/or introduce brackets to make prior hitch models fit the new 2020 GMs..

I am curious about your feedback on not enough clearance for the tail gate and side rails. Where did you learn this (only for the Andersen ?) and do you know what the specific differences are ?

Thanks, Dan

So far I have only 'discovered' this with respect to the Anderson Ultimate Connection 2. There was some small print on the bottom of the hitch configuration chart that was inside the box that the hitch came in (yes - i have already purchased online and received the hitch - arrgh). I spoke to customer service at Andersen and they, in a round about way, confirmed that with the 2020 Chevy GMC's, clearance is a problem. They advised that i should take a series of measurements - as described in their manual - to determine whether it will clear. it seems that GM has increased the height of the side rails of the box?? Not sure about this as this is the first truck I have bought.

**Canyonlight** · 04-04-2020, 10:16 AM

Originally Posted by PJOB

So far I have only 'discovered' this with respect to the Anderson Ultimate Connection 2. There was some small print on the bottom of the hitch configuration chart that was inside the box that the hitch came in (yes - i have already purchased online and received the hitch - arrgh). I spoke to customer service at Andersen and they, in a round about way, confirmed that with the 2020 Chevy GMC's, clearance is a problem. They advised that i should take a series of measurements - as described in their manual - to determine whether it will clear. it seems that GM has increased the height of the side rails of the box?? Not sure about this as this is the first truck I have bought.

Ok, thank you ! Now I am more curious. I will have to go measure the GM 2020HD box and fiver/goose hitch placement dimensions and compare with my current truck.

Dan

**PJOB** · 04-05-2020, 08:37 AM

Originally Posted by Canyonlight

Ok, thank you ! Now I am more curious. I will have to go measure the GM 2020HD box and fiver/goose hitch placement dimensions and compare with my current truck.

Dan

I stand corrected - it seems that the height of the side rails and tailgate are the same from the previous model (<2019) to the new model (2020). I had the sales guy from the dealer go out and measure both models and they are the same. What has changed is the length of the box on the standard bed. I believe it was 6'5" (or 6'6") and for 2020 has been increased to 6'10". This has changed the location of factory installed fiver/goose hitch placement. Apparently this is what has the hitch manufacturers scrambling???

Sorry for the previous misinformation.