Super dredge!!
On topic, if anyone cares, I towed with my old '81 Jimmy back in the day. 21 foot camper trailer, 5500 lbs. The Jimmy had a 4" lift, 14 bolt rear, 3.73's, 35's and a SM 465. By far the biggest improvement in towing stability was the weight distributing hitch. Zero sway, and the trailer and K5 behaved "as one" over the dips and bumps rather than the rear of the K5 being overwhelmed momentarily over the big bumps. I only put about 10,000 miles on that combo over a 5 year period, from Vancouver BC, down to San Diego CA and back as well as all through the mountains in B.C. several times.
also flat towed an '82 Blazer from Round Rock TX to Vancouver BC with that rig.
My biggest "want" was just more power on the big hills. That poor 350 would be screaming at 4000 rpm on long hills. Never had a lick of trouble with it though.