Hi, I tow a 6000lb (loaded) travel trailer with stock SCAB. I use a weight dist hitch (just switched to Anderson) and that has worked well. I did recently add a set of Timbren SES (FR150R) bump stops. These are Rubber support springs that replace the factory bump stops. With the trailer connected, I'm just on the new bumps. They seem to help prevent any additional sag, etc. I would start with a WD hitch first, then look at something like the timbren. They are pretty inexpensive, work well, easy to change out for serious off road, or can be left on all the time without affecting on road ride.