Open diff or limited slip

I agree limited slip. Sure, you probably can get by without it.

I don't tow, but the limited slip has been useful with my TC-like small C.

One thing Ive heard about LS is towing can be hard on it ,around corners. Maybe folks just didnt have enough or had old limited slip lube in it
I had a 1969 3/4 ton power wagon with posi that when I had a load on it grabbed in corners

The other thing I heard is not to get the powr-loc that was an option in mid 90`s dana 80`s I guess they changed to trac-loc ,
Im getting a used axle , hoping not to have to do more than seals and brakes on it, I guess if I dont get a LS dif and have to re-build it I can get an after market one or a used trac-loc and re build it
Not finding any 01.5 -02 dana 80`s with disc brakes yet, just going to put 1 3/16 GM wheel cylinders on it , for improved braking , at least the drums are an inch wider than on my stock 2500 axle

A good LSD will make you realize how un-capable a truck is without one. There's no downside other than the slight cost. You might be thinking of a locker that can cause some squirrely handling on ice. A limited slip doesn't really have that problem.
I would never want a truck with an open diff. again.

Well worth the price to get LSD imo.

Before I bought my ’99 Ram 2500 4X4 I owned an ’86 Ford F350 4X4, it looked tough as hell but even with 33x12.50-16 BFG Mud T/A’s it got stuck in deep snow and mud many times. It was getting to be so often that I put a 12000 lb winch on it. Even driving in town if one rear tire was on ice at a stop light I was spinning or had to shift into 4X4.
When I ordered my Ram the rear limited slip option was only $100 or so extra, man what a difference. Now many times I would have been stuck or spinning to get going it’s not a problem. I was a little worried it would be tough controlling the rear on icy roads, but that has not been any problem.

If you have the option of a limited slip get it. Reason traction in low traction situations. You got a 4x4 for a reason. improve it.