# Free Towing Hookup Check in Upland > A free trailer hookup check at our Upland U-Haul lot: coupler, ball, pin, crossed chains, lights, tongue weight and hitch rating before you tow. Source: https://route66autorepairshop.com/u-haul-rentals/free-towing-inspection Updated: 2026-09-17 Business: Route 66 Auto Repair, 1775 W Foothill Blvd, Upland, CA 91786, (909) 608-7699 Hours: Monday to Friday 8 AM–5 PM, Saturday 8 AM–2 PM, Sunday closed **TLDR:** The free check covers the **hookup only**. A look at your brakes, tires and cooling is a **paid tow-vehicle inspection** with a **written result**. The Free Towing Inspection at Route 66 Auto Repair in Upland is a no-charge hookup check for anyone leaving our lot with a U-Haul trailer or tow dolly. A technician checks the coupler, ball, pin, safety chains, lights, tongue weight and hitch rating before you pull onto Foothill Blvd. It covers the connection, not your car's mechanical condition, and this page explains the difference. ## Why check the hookup at all? A trailer that comes loose, sways or goes dark at night is a real danger on the 10 and the 210. Most of those failures start at the connection: a ball one size off, a latch that never closed, chains hung straight, a pigtail plug that looks seated but isn't. Each takes seconds to catch in the lot and is hard to fix on the shoulder. ## What does the hookup check cover? - Ball size matches the trailer coupler - Coupler closed on the ball and the pin installed - Safety chains crossed under the tongue and hooked to the hitch - Brake lights, turn signals and running lights working - Tongue weight reasonable for the load and the vehicle's stance - Hitch class and rating compared to U-Haul requirements ## How the hookup check goes 1. **Look at the hitch first:** We read the hitch and ball markings before the trailer is connected. 2. **Connect and latch:** The coupler goes on, the latch closes, and the pin goes in. 3. **Cross the chains:** Chains cross under the tongue so they cradle it if the coupler ever lets go. 4. **Test the lights:** One person works the pedal and signals while the other watches the trailer. 5. **Check stance and load:** We look at how the vehicle sits and talk about loading heavy items forward. ## What's included in the free hookup check - Coupler and ball size match - Latch and safety pin - Crossed safety chains - Full trailer light test - Tongue weight and hitch rating review ## What the free check does not cover It does not inspect your tow vehicle. Worn pads, old tires, a tired radiator or slipping transmission can all fail under trailer load, especially climbing the Cajon Pass. For that, book a paid [vehicle safety inspection](https://route66autorepairshop.com/diagnostics-and-inspections/vehicle-safety-inspection). The fee is stated at the counter before testing, and you get a written result that marks each item need-now or need-later. If brakes are the worry, see [brake services](https://route66autorepairshop.com/brake-services). If heat is, see [cooling and AC services](https://route66autorepairshop.com/cooling-heating-ac-services). Rental details are on the [U-Haul rentals hub](https://route66autorepairshop.com/u-haul-rentals). ## Frequently asked questions ### Is the towing inspection really free? Yes. The hookup check is free for U-Haul trailer and tow dolly renters at our lot. It covers the connection: ball, coupler, pin, chains, lights, tongue weight and hitch rating. ### Will you check my brakes during the free inspection? No. Brakes, tires, cooling and transmission are part of a paid tow-vehicle inspection. We explain the fee at the counter before any testing, and the result is written. ### What if my hitch fails the check? We tell you what is wrong in plain words, such as the wrong ball size or a rating that is too low. You can fix it before leaving or change the reservation on uhaul.com. --- Call (909) 608-7699 or visit https://route66autorepairshop.com/contact for a written estimate.