A completed Application for Texas Title and or Registration (Form 130-U); Applicable fees. The form consists of the significant vehicle, buyer, seller, and sale data, along with affirming signatures from both parties.Edit, sign, and share TRAILER BILL OF SALE online. No need to install software, just go to DocHub, and sign up instantly and for free. The Trailer is to be sold free and clear of any liens, encumbrances, or mortgages.