I have had normal hitches from autozone/home depot, weigh-safe, and bullet proof hitches. Both my weigh-safe and bullet proof hitches use the 3" shaft. That is one of my favorite parts. I like having too much and not being concerned tow ratings.
I really like the weigh-safe drop hitch. However, it does not support it being in the raised position. I needed this for my M1102 trailer that is tall even with my truck. I switched over to a 3" Bullet proof hitch with 6" drop. I probably could have gone with the 8" but I wanted more ground clearance. I also have the pintle attachment since my M1102 needs that style.
I also have a 2.5" shaft Bulletproof 8" drop/raised hitch for towing my M1102 with my camper. I had to go with 2.5 for it to fit in my hitch extension that took my 3" hitch to a 2.5".
Overall both hitches feel amazing. I love the weight reading on my weigh-safe hitch, but I prefer the strength and versatility with my Bulletproof hitch. I will admit that both can be quite overkill if you are not towing anything that big.
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