Your Safari (Astro twin) should only have leaf springs and shocks on rear, not sure if front was coils.
First obvious question is tires - are they LT or passenger? If passenger you need the max air pressure, to increase load capacity. LT tires are better due to a stronger/stiffer sidewall. That can reduce "wallow". The soft sidewall of the passenger tires causes wallow.
Second to consider is shocks, which control the up and down as opposed to side to side. If your shocks don't rebound up and settle down quickly, then they are worn out. Shocks are only to damper the up and down and help keep tire contact with the ground. Some trailer haulers use air bags to increase capacity and stiffen up soft springs, but you can overload your axle this way.
Third is your rear leaf springs, if they are sagging they need replacement or overloads or helpers in order to take the load of a trailer (tongue weight). Leaves carry up and down weight, they really don't help with side to side transfers unless the tie down brackets/ubolts are loose, then they are allowing slippage. If you have coils in the front and they are worn, they will sag and due to metal fatigue won't carry the ft end up correctly.
Fourth is an anti-roll bar (roll bar/sway bar). This does a good job of controlling side to side but it shouldn't be slapped on if there are problems with the others above, as you are just overlooking an easier problem to fix.
First obvious question is tires - are they LT or passenger? If passenger you need the max air pressure, to increase load capacity. LT tires are better due to a stronger/stiffer sidewall. That can reduce "wallow". The soft sidewall of the passenger tires causes wallow.
Second to consider is shocks, which control the up and down as opposed to side to side. If your shocks don't rebound up and settle down quickly, then they are worn out. Shocks are only to damper the up and down and help keep tire contact with the ground. Some trailer haulers use air bags to increase capacity and stiffen up soft springs, but you can overload your axle this way.
Third is your rear leaf springs, if they are sagging they need replacement or overloads or helpers in order to take the load of a trailer (tongue weight). Leaves carry up and down weight, they really don't help with side to side transfers unless the tie down brackets/ubolts are loose, then they are allowing slippage. If you have coils in the front and they are worn, they will sag and due to metal fatigue won't carry the ft end up correctly.
Fourth is an anti-roll bar (roll bar/sway bar). This does a good job of controlling side to side but it shouldn't be slapped on if there are problems with the others above, as you are just overlooking an easier problem to fix.
"Life is short, smile while you still have teeth."
![[-]](https://vandwellerforum.com/images/collapse.png)