Doesn't sound like sponsorship if you have to pay for parts. A sticker on the back window doesn't count as a sponsorship.
Most sponsorships are not full ride, common types are 50 to 75% off wholesale.
Sponsored by Taylor Wires!
Sponsored by PowerMaster!!
Sponsored by FROZEN BOOST!
Sponsored by US Speedo!
Ahh ok, so what makes your truck worthy of sponsorship? I'm missing something here.