Differential Condition, water in it...rebuild it, inspect further or leave in?

[Stuka]

Weird i towed the 6400lbs on the uhaul up the mountains in va. And back down.. I had no sway or any issue at 65mph. Besides lack if power going up the hills. But hey thats you. This is me. Apples an oranges. The uhaul trailer was very stable. Brakes were fine on the Jeep with the trailer surge brakes.. The later year ones are rated for 5klbs. A ZJ is rated for 6500lbs fyi.. And the ZJ is lighter.. and even more narrow. But maybe its because i have a 90 like you said. I also have stiff springs rated for higher than factory loads. The 97-402 for 1440lbs. Vs the 1300lbs springs.. and an add a leaf as well sooo

The frame stiffners looks like these. Ill get more pics off mine

Yeah, obviously your mileage may vary. Terrain matters a lot (I am in the steep, high altitude sierra nevadas). And neither Jeep had tack bars.

Thanks for getting the shots of the frame stiffeners. I dont think anybody has ever posted a photo of those.

[letank]

This V hitch was called the HD style.

here are my takes on the 74, a little mod needed for the rivets

Passenger's side

HitchBracketPass2x.jpg

Driver's side

HitchBracketDrvrx.jpg