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Old 06-09-2021, 07:41 AM   #1
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Porpoising?

I have a 2011 Tahoe with the tow package. On the hitch it says I can tow up to 5000# and tongue weight of 600# with no WD hitch. With a WD hitch it jumps to 10,000# and 1000#. I hooked up 3300# (according to NADA guide) 2002 24' Palomino Stampede S235SL to my Tahoe with just the tow ball no WD hitch(don't have one). As a newbie in towing things, I thought it towed rather well except for the fact that I felt EVERYTHING, it was kind of making me nauseous. It stopped well, and I could start off from a stop no problem. Just felt like I could feel every little dip in the road or bump, like it was putting a lot of pressure of the back of the Tahoe. Is this normal and would a WD hitch help?
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Old 06-09-2021, 07:43 AM   #2
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You need a WDH
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Old 06-09-2021, 07:50 AM   #3
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You need a WDH
I thought that also, how big would I need?
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Old 06-09-2021, 09:01 AM   #4
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A WD hitch could actually make the problem worse because in effect what you are doing is adding a spring to the hitch point. If you are driving down a wavy road at just the right speed you could develop a harmonic wave that could cause violent porpoising and damage. I would be looking at how your trailer is loaded. Maybe you have too much tongue load. Also check the shock absorbers on your tow vehicle.
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Old 06-09-2021, 09:26 AM   #5
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Originally Posted by move on View Post
A WD hitch could actually make the problem worse because in effect what you are doing is adding a spring to the hitch point. If you are driving down a wavy road at just the right speed you could develop a harmonic wave that could cause violent porpoising and damage. I would be looking at how your trailer is loaded. Maybe you have too much tongue load. Also check the shock absorbers on your tow vehicle.
Never thought of that!!
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Old 06-09-2021, 10:08 AM   #6
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So the tags are faded on the camper and it says GVWR is 5000#, 2500# per axle.
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Old 06-09-2021, 10:48 AM   #7
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So some new information has come to me, I do not have the upgraded tow package. According to the owners manual, with my set up, maximum trailer weight is 5200#, GCWR is 11,000#
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Old 06-09-2021, 12:24 PM   #8
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According to an old brochure I found for it online the travel trailer is as follows
GVWR of 5,000#
Hitch dry Weight of 507#,
Dry axle weight of 3193#,
Carrying capacity of 1300#

I own a 2011 Chevy Tahoe that has a
curb weight of 5894#
GVWR of 7300#
maximum trailer weight of 5200#
GCWR of 11,000#

On the hitch it has a tag that says max tow without a WD hitch of 5000# and a tongue weight of 600#, with a WD hitch it jumps to 10,000# and 1,000#. My question is, do I need a WD hitch?
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Old 06-09-2021, 01:25 PM   #9
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No disrespect to the other member, but I would ignore that advice. I would 100% use a weight distributing hitch on that application. It will solve 85% of your problem.

A Tahoe is kind of a short wheelbase and when a TT is added it'll definitely cause porpoising. If you don't load it to the gills you should be fine. Without a tow package I'd be checking or having a competent mechanic check the cooling system, rad, cooling fan for proper capacity for the job as well as if there's a proper sized trans cooler factory mounted. You'll want that for sure.

Stay within payload and it'll be OK. Make sure you have decent rear tires. LT load range E will firm up the ride when aired to 65 psi or so on them.
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Old 06-09-2021, 01:29 PM   #10
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No disrespect to the other member, but I would ignore that advice. I would 100% use a weight distributing hitch on that application. It will solve 85% of your problem.

A Tahoe is kind of a short wheelbase and when a TT is added it'll definitely cause porpoising. If you don't load it to the gills you should be fine. Without a tow package I'd be checking or having a competent mechanic check the cooling system, rad, cooling fan for proper capacity for the job as well as if there's a proper sized trans cooler factory mounted. You'll want that for sure.

Stay within payload and it'll be OK. Make sure you have decent rear tires. LT load range E will firm up the ride when aired to 65 psi or so on them.
What size weight distribution hitch would I look for and would I need sway control?
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Old 06-09-2021, 01:31 PM   #11
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A WD will muffle some of the movement. Meaning it will smooth out to a degree.
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Old 06-09-2021, 01:43 PM   #12
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WD hitches are sized by the tongue weight of the trailer you'll be towing. I would get one with integrated sway control so you don't need a separate sway bar.
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Old 06-09-2021, 01:58 PM   #13
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What size weight distribution hitch would I look for and would I need sway control?
If your trailer says 5000 GVWR I'd be looking at 500/5000 or 600/6000 sized WDH. 1000/10 000 would likely be too stiff. i,m no expert on them, so ask a knowledgeable sales person, but 600/6000 sounds good to me. I only ever had the chain type with separate friction sway bar and it was fine. If integrated sway can be had and works good that's one less step in hitching. I would NOT use one without sway control on a short wheelbase truck like that.

Make sure the entire setup isn't tooo low to the ground, although should be fine on a Tahoe. I see a LOT of integrated sway control WDH really low to the ground and breaks bars and other stuff on steep drives and entrances. I usually see it on FWD based SUVs and AWD SUVs that are FWD based.
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Old 06-09-2021, 02:15 PM   #14
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If your trailer says 5000 GVWR I'd be looking at 500/5000 or 600/6000 sized WDH. 1000/10 000 would likely be too stiff. i,m no expert on them, so ask a knowledgeable sales person, but 600/6000 sounds good to me. I only ever had the chain type with separate friction sway bar and it was fine. If integrated sway can be had and works good that's one less step in hitching. I would NOT use one without sway control on a short wheelbase truck like that.

Make sure the entire setup isn't tooo low to the ground, although should be fine on a Tahoe. I see a LOT of integrated sway control WDH really low to the ground and breaks bars and other stuff on steep drives and entrances. I usually see it on FWD based SUVs and AWD SUVs that are FWD based.
Thank you. 600/6000 seems to be the number I need to look into.
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