truck software for nuvi 760

Nuvi 760
Hello dear friends.

I have a Nuvi 250W and a nuvi760.
I wonder if I can get software to truck in some of these equipments.
If so which and maps and software that I use.
If anyone can help me I am very grateful for on the day will help me a lot.

Thank you.

Garmin nuvi devices are only for car navigation and not usefully for truck, camper or trailer. There for garmin has special (and of course more expensive) devices like nuvi 465 or dezl. There is no known possibility to use their software for other devices.
You can only use MapSource or BaseCamp to plan truck routes on PC, if you don't want to buy a special truck satnav.

Ok thank you very much dear friend I will wait for better days ...

For now is difficult.

Thank you

Embrace.