All countries/stases have unified the weight limit for entire vehicles. Now, most countries/states can carry heavier loads than before, including the promods Canada.
Add some type of trailer connections “hct4”, which is very heavy.
1.61updated , South Dakota updated , road trip updated

Axle – max weight limit:
2-axle vehicle – 18t
3-axle vehicle – 27t
4-axle vehicle – 36t
5-axle vehicle – 45t
6-axle vehicle – 54t
7-axle vehicle – 62t
8-axle vehicle – 70t
9-axle vehicle – 78t
10-axle vehicle – 86t
11-axle vehicle – 93t
12-axle vehicle – 100t
13-axle vehicle – 107t
14-axle vehicle – 114t
15-axle vehicle – 121t
16-axle vehicle – 128t
17-axle vehicle – 134t
18-axle vehicle – 140t
19-axle vehicle – 146t
20-axle vehicle – 152t

Credits:
枣泥马院长

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