Turns out there are 2 models of towbar from U-haul.

28033 (uhaul #) is a 1500lb, 100lb tongue weight towbar. It's not actually the one I got. Uhaul here is a little useless.

11711 (curt mfg's item#) is a 2000lb, 150 tongue towbar, and it is the one I have on my car.

__________________
1983 240D Silver/Blue "Sadie", unknown miles. 100k miles on WVO single tank, converted to 2 tank about 10k miles ago, FPHE, Injector Heaters, Aux Fuel pump. Alcohol/Water injection. Frantz oil bypass filter
1992 300D 2.5 Turbo Green/Tan "Jade" 267K miles Stock.
1992 300D 2.5 tan/tan "Rocky" on 2 tank WVO. Pressure actuated Turbo "rat's nest" surgery completed. 197k miles