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What 5th wheel hitch are you using?

We recently ordered a 5th wheel toy hauler to tow with our 2020 AT4 HD. I have the 6'9" bed.

The hitch I'm decided on is the B&W RVK3710, which is for the 2020+ puck systems. Now you have me concerned about height of the hitch and 5er to rail clearance.

I was looking at the Andersen Ultimate Hitch but have decided against it. My understanding for it though is that Andersen has released a new version that is slightly taller to accommodate the higher bedsides.
I have the same truck (even in the same color) and I have the hitch you listed. As explained in a previous post I had to raise my 5th whl to get the bed rail clearance that I wanted, I have towed into a boonedocking spot with no clearance problems and did a 1,400 mile round trip and it tows great. I had considered going with 1.5 inch lowering shackles before I raised it, I still wouldn't rule that out as in my estimation these trucks are too high as is. Once I hooked up my truck sits pretty level and I have between 5 and 6 inches bed clearance. Wished I had taken pictures when hooked up so that I could share them.
 

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I feel your pain. I'm new to 5th wheel towing, and trying to figure this stuff out makes my brain hurt! Our 5er that we ordered is already at 13'6". No option to raise it any taller without causing all sorts of clearance issues with overpasses, etc.
Did you measure it? When you raise the trailer the front doesn't move much. I had mine set up to be level on my 04 when I got my 19 I had to go up a hole on the 5th wheel.
 

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I have the same truck (even in the same color) and I have the hitch you listed. As explained in a previous post I had to raise my 5th whl to get the bed rail clearance that I wanted, I have towed into a boonedocking spot with no clearance problems and did a 1,400 mile round trip and it tows great. I had considered going with 1.5 inch lowering shackles before I raised it, I still wouldn't rule that out as in my estimation these trucks are too high as is. Once I hooked up my truck sits pretty level and I have between 5 and 6 inches bed clearance. Wished I had taken pictures when hooked up so that I could share them.
It's good to see someone with the same good taste, haha!

Hopefully the 5er we ordered won't have such tight clearance. I'm certain the dealership will adjust the pinbox as needed to get as much out of it as we can.

Do you have any clearance issues from nose cap to truck cab? I realize that much of that depends on the trailer, but just curious. All the research I've done tells me I'll be ok with a fixed hitch as opposed to a slider. Which is nice to save on weight.

I have a set of Air Lift airbags that are going in as soon as I find time to help with any squat and overall ride comfort and to prevent any bucking.

Did you measure it? When you raise the trailer the front doesn't move much. I had mine set up to be level on my 04 when I got my 19 I had to go up a hole on the 5th wheel.
Unfortunately, no. I don't have the trailer yet since we ordered it factory direct, and I still haven't gotten the hitch yet either. I do plan to set the hitch up as high and rearwards as it will allow though.

I have a good friend who has the same truck exactly (different color) and who also ordered the same trailer. He'll get his before us, so I'll be paying attention to his experiences with all this as things unfold.
 

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It's good to see someone with the same good taste, haha!

Hopefully the 5er we ordered won't have such tight clearance. I'm certain the dealership will adjust the pinbox as needed to get as much out of it as we can.

Do you have any clearance issues from nose cap to truck cab? I realize that much of that depends on the trailer, but just curious. All the research I've done tells me I'll be ok with a fixed hitch as opposed to a slider. Which is nice to save on weight.
I don't have any clearance problems but I tow a Titanium fifth which has a unique front end - I also have more clearance with the new truck than I did with my 04, that's to be expected with the slightly longer bed. By the way I have my hitch in the forward position and can almost get a 90 degree turn with it. Good luck with the new camper, must be a big one!
 

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Thanks Tom! I've never pulled a 5er before, so I'll be spending some good quality time in an abandoned parking lot once we finally get it.

It's a Grand Designs Momentum G class. Approximate length is 39'10". We like to get out camping as much as possible and this will allow us to bring our RZR and our two golden retrievers will have a nice place to relax with A/C when we're out on the trail.

I'm anxious to use the truck for what it was made for.

Sorry to hijack your thread OP, I hope you come up with a good solution. Keep us posted please, it might be helpful down the road (no pun intended)!
 

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So is it the AT4 option that's causing all the problem? When I traded my '12 for an '18 I noticed the newer truck sits really high, and it's just a regular HC.

I have to have my truck inspected to haul new RV's and the bedside is supposed to be 59" max. Mine was closer to 60" but it passed anyway. I really could do without all this extra height, especially on a highway truck. I understand extra clearance on an offroad package but not sure why they're making some of the other options so high now.
 

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All the new 2500 & 3500 HD's are close to same height. My opinion as far as how high they are is a product of marketing, just look at all the posts regarding lifts.
 

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2021 3500HD CC SRW SB 4WD
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I have a ‘21 3500 HD. My clearance is 6” on the rails and 5 1/2“ on the tailgate. My hitch is an Andersen Ultimate. The 5th wheel is close to level.
 

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Motor vehicle Automotive tire Automotive design Transport Vehicle


2020 3500 Have B&W 20,000 hitch. No Slider, Trailer is level and no clearance issue on box of truck. Axles are not Flipped. Can almost make a 90* turn as you can see.
Hope this helps
 

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So is it the AT4 option that's causing all the problem? When I traded my '12 for an '18 I noticed the newer trucks sits really high, and it's just a regular HC.

I have to have my truck inspected to haul new RV's and the bedside is supposed to be 59" max. Mine was closer to 60" but it passed anyway. I really could do without all this extra height, especially on a highway truck. I understand extra clearance on an offroad package but not sure why they're making some of the other options so high now.
With the HD's the AT4 is the same height as the rest.

With the 1500's the AT4 has the 2" factory lift.

(even with the 2" factory lift, the 1500 is lower than the HD's...)
 
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I don't know about the 2020's & up. 2019 the bottom of the box was about the same as my 04 but the 19 the box is 2 inches deeper.
 

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ok got it. so anyways, its a very real problem.

I have 5 trailers too (all for work) so I need to figure this out ! Was only honestly really worried about my big 5th but I'm gonna have clearance issues on the gnecks /w decks too...

Only option I am seeing right now is putting super lame 265/65-18s on and having er look like a "train truck" (you know, those ones that run the tracks with super skinny pizza cutter tires).. that would drop er an inch or so...

shackle ??
I ran into this when I went to the Reese Goosebox on our 5th wheel toy hauler. Pull with a 2015 Chevy 3500 Dually. The trailer to bed side was a little too narrow for my comfort. The Goosebox was set as high as was possible. Bought a gooseneck ball that was 1” taller for the Curt hitch. Doesn’t seem like much, but gave about 6” clearance total. Made pulling in and out of drives a lot easier on the dips.


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I ran into this when I went to the Reese Goosebox on our 5th wheel toy hauler. Pull with a 2015 Chevy 3500 Dually. The trailer to bed side was a little too narrow for my comfort. The Goosebox was set as high as was possible. Bought a gooseneck ball that was 1” taller for the Curt hitch. Doesn’t seem like much, but gave about 6” clearance total. Made pulling in and out of drives a lot easier on the dips.


Sent from my iPad using Tapatalk Pro
I was interested in the Reese Goosebox too, but the one issue I’m sure I’d have is that I also have a Retrax tonneau. The side rails for it encroach just enough that the shape of the Goosebox would easily make contact.
 

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Hi,

I just traded in my '15 SRW long box for a '21 AT4, am sooper stoked.. BUT:

on my new truck the bed rail to 5th wheel clearance is way too tight ! it was marginal on the previous truck and I didn't think it would be that different (doh). Now I cant take my 5th out of my driveway !! Trailer already had axles flipped already has the biggest tires it can on it it can fit and pin box is lowered (which raises the front) as high as it goes... 5th is also on highest setting. And in this config the trailer is already pretty nose up..

So I thought ok, my only options are smaller tires (sacrilidge !) or ?? I fitted a set of 265/65r18 and it added an inch but now the truck looks like a "train truck" (you know, with the skinny little train wheels).. super ghey... so want to go back to bigger tires but what else can I do ? Is removing the lift block a viable option? any other ideas ? I still need to be able to drive in ice/snow/mud when 5th isn't on for work.. so yeah... thanks.

ps no I cant put a hauler body on it I need the box for work...

-Ph
From my reading various RV fora for the past 15 years, with the newer trucks, they should have spacer blocks in the suspension you can remove to lower the truck. Not sure if it's still available, but you could add a Correct Track suspension alignment to your FW to gain 2" lift. Only other =safe= alternative is to add a spacer subframe on the FW, between the spring hangars and the frame. You can then raise the FW however much you want; just remember to stay at 13'6", or less. You'd want the subframe to extend at least a foot beyond the current front and rear spring hangar attachments and you'd also want to add cross-braces from side-to-side.

Lyle

Lyle
 

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When I had the IS installed on my 5th wheel they added 5 inch sub frame to make it match up to my 04.
 

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I was interested in the Reese Goosebox too, but the one issue I’m sure I’d have is that I also have a Retrax tonneau. The side rails for it encroach just enough that the shape of the Goosebox would easily make contact.
My truck has a roll-up bed cover with side rails. So far I haven’t gotten into the bed rails. Had the same problem with the original factory 5th wheel pin box. In fact, I had to take the plastic factory trailer pin box cover off, to keep it from getting into the side rails. I don’t have any problems with having enough turn radius to park the 5th wheel. I can still go to almost a 90° angle without any clearance problems.


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I thought the AT4s came with the pro tailgate and those tailgates are shorter than the regulars thus the bed rails are shorter on these? Also why would getting smaller tires or changing suspension height help clearance between trailer and truck bed rails? If you lower the suspension or tires of the truck 2 inches you are lowering the entire truck 2 inches. AKA the receiver where the trailer connects... Sorry if I missed something but I think you need to lift the receiver in the truck bed or extend the neck on the trailer. Do you have any pictures?
 

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I thought the AT4s came with the pro tailgate and those tailgates are shorter than the regulars thus the bed rails are shorter on these? Also why would getting smaller tires or changing suspension height help clearance between trailer and truck bed rails? If you lower the suspension or tires of the truck 2 inches you are lowering the entire truck 2 inches. AKA the receiver where the trailer connects... Sorry if I missed something but I think you need to lift the receiver in the truck bed or extend the neck on the trailer. Do you have any pictures?
Bed height is the same, you lower the truck but raise the hitch head and/or lower the pin box on the 5th - this enables you to get bed to trailer more room.
 

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View attachment 1083643

2020 3500 Have B&W 20,000 hitch. No Slider, Trailer is level and no clearance issue on box of truck. Axles are not Flipped. Can almost make a 90* turn as you can see.
Hope this helps
I just bought a BW3710. Installing in my 2020 3500 Dually 8ft bed. What hight did you set yours at? Lowest, mid or highest to clear your rails Love your cedar creek that was our first choice buying a montana high country 373RD instead.
 

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I just bought a BW3710. Installing in my 2020 3500 Dually 8ft bed. What hight did you set yours at? Lowest, mid or highest to clear your rails Love your cedar creek that was our first choice buying a montana high country 373RD instead.
I realize you weren't directing your post to me, but now that we actually have both the truck and trailer, I can say that we're using the most rearward and most upward position of the B&W 3710.

I clear my tonneau rails by about 6" and sit very close to level. So far, I haven't had any issues with clearance between bed and trailer.
 
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