'61 TradeWind: What strength bars?

[PA BAMBI II]

Hello! I am a competent trailer tower. I have towed our Bambi II (factory dry weight 1950 lbs; tongue weight 250) with an Eaz Lift Elite towing system as recommended and supplied by Can-Am. For the Bambi II, I use 600 lb. weight distribution bars. Tow vehicle is a 2014 Nissan Pathfinder.

We recently purchased a 1961 TradeWind (factory dry weight 3130 lbs; tongue weight 340 lbs.).

My question: will 600 lb. bars do the job for the TradeWind as well? We towed it home with that equipment, and all seemed fine. But, would 800 lb. bars serve me better or cause too much tension and stress on the Airstream?

I need another adjustable hitch insert to get the basic height correct anyway (and I am going to utilize a single sway bar with the TradeWind; I do not use one with the Bambi II), so while I am searching used trailer hitches and equipment, I just need to know if I should be considering heavier strength bars as well.

[57Vintage]

I tow a 58 26' Overlander (single axle) with a Reese dual cam WDH and 600 lb bars and it tows fine. My frame rails are 4X2 so I don't want to overdo the WD.

[AlbertF]

If the 600 lb bars provide enough weight distribution when the trailer is loaded, you should be fine. However, tapered 800 lb bars won’t hurt either.

The tension is effectively variable,
depending on how tight you draw the chains. I suspect the taper helps a lot.

I’m using 1000 lb EazLift bars with a 22FB. Loaded tongue weight is probably 600 lbs, and the hitch is working well. However, it’s very easy to transfer too much weight forward. The first time I stopped at a scale I discovered the front axle of the tow vehicle was overloaded.