This product seemed VERY heavy duty but it didn't come with a ball to mount to it. So in other words you can't use it without buying extra parts. It is also kind of confusing and difficult to get installed.

If you are towing a larger trailer with considerable tongue weight, this is the only way to go. Much safer than a regular bumper hitch.

Eaz-Lift 48051 600 lbs Elite Bent Bar Weight Distributing Hitch with Adjustable Ball Mount and Shank The hitch and springs are very good quality and built to last. The problem with this particular version (600 lb tongue weight) is that the ball mount and shank are not matched to the springs. The ball mount and shank is the same heavy duty equipment that is used with springs of much higher weight rating. The shank is solid steel, and together with the ball mount, weigh 40 lbs. The total weight with springs and all hardware is 80 lbs. This is a lot of unnecessary weight to have to handle every time you want to hook up the trailer... and a lot of extra tongue weight that then has to be distributed by the springs. In comparison, the total weight of a slightly lighter duty system (500 lb tongue weight) CURT 17345 Trunnion Bar Weight Distribution Hitch - 500 lb. Tongue Weight Capacity weighs only 50 lbs, including springs and all hardware. My trailer is 3700 lbs with a TW of 400. I bought the 600 lb load distribution unit to have a margin of safety in case I had extra loads in the front of the trailer or rear of the tow vehicle. But now I wish I had gone with the 500 lb unit. I still would have had a margin of safety, but in a much more manageable size.

Towed a boat (gross 8,000 lbs) with a 7.3L Excursion. Seemed okay, just had to take it easy and get used to the handling. Then I installed this (1,000lb w/ shank), wow, what a difference. I won't tow without it again!

Getting it adjusted the first time took about an hour, but once I got it dialed in, piece of cake. Adds about 5 minutes of time to hook up the trailer, but very much worth it. Also much more affordable than some of the other models out there.

Replaced my vintage 1980 Eaz-Lift unit with this one for my boat trailer. After 'modifications', I found this one to be great.
The newer model has a different designed 'Quick Hook-Up' unit (the hinged part that attaches to trailer tongue) that has a poor adjust ment range and different footprint than my 'vintage' one. I opted to use the old one.
The 'Hook Up Wire Clip', for securing the 'Quick Hook-Up' is closed are not designed for regular use. Replaced with hitch pins from the hardware store.
The large 3/8 chain links are cumbersome and allow for little, if any, fine tuning. I replaced the chain with 5/16 galvanized high test chain.
The ball mount platform is a different design, so movement of the 'Quick Hook-Up' units on the trailer tongue is required.
Designed to accept a 1-1/4 inch shank towball, with a downgrade bushing to accept a 1 inch shank towball. 3/4 inch length is fine.