3J's Auto Body · Signal Hill, CA · Professionally Installed

Tow More.
Worry Less.

Trailer hitches, ball mounts, wiring harnesses, brake controllers, and weight distribution — professionally installed right here in Signal Hill. CURT and B&W Hitches dealer. We sell it and install it ourselves.

Get a Free Quote Call (562) 424-6744
CURT Dealer B&W Hitches Wiring & Brake Controllers Class I – V Hitches
Brands We Carry
CURT B&W Hitches
What We Install
CURT Class III Trailer Hitch

Trailer Hitches

Class I through Class V receiver hitches for every truck, SUV, and car. Vehicle-specific — bolts on with no drilling on most applications.

CURT Ball Mount and Hitch Ball

Ball Mounts

Fixed and adjustable ball mounts, hitch balls, and pins for all tow ratings. We'll match the right drop and rise to your setup.

CURT T-One Wiring Harness

Wiring Harnesses

Plug-and-play T-One connectors and custom 4-pin and 7-pin wiring for your trailer lights — installed clean and routed right.

CURT Trailer Brake Controller

Brake Controllers

Trailer brake controllers for electric brake trailers — required by law in most states over a certain tow weight. We handle the wiring and installation.

Featured Brand

CURT Manufacturing

CURT is the #1 selling trailer hitch brand in North America — and for good reason. Every hitch is engineered for your exact year, make, and model. Powder-coated for rust resistance. Tested to SAE J684 safety standards. We stock CURT and install it ourselves.

CURT Class III Trailer Hitch
CURT · Class III
Receiver Trailer Hitch
Round-tube main body, open-back receiver, precision welded. Vehicle-specific design for a custom fit. Made in the USA.
CURT Ball Mount
CURT · Ball Mount
Trailer Ball Mount
Can be flipped to provide drop or rise. Works with all standard hitch balls. Solid steel construction with durable finish.
CURT Towing Accessory
CURT · Accessories
Towing Accessories
Hitch pins, balls, safety chains, wiring adapters, and more. Everything you need to tow — in stock and ready to install.

Heavy Duty Line

CURT Rebellion XD

CURT's toughest receiver hitch — the Rebellion XD is engineered for extreme-duty towing with a high-strength steel weld construction, XD anti-rattle technology, and a raw steel finish ready for paint or powder coat. Built for trucks that actually work.

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CURT Rebellion XD Heavy Duty Trailer Hitch

Premium Hitches

B&W Hitches.

When the job gets serious, B&W is the go-to. Built in Humboldt, Kansas and precision-engineered for heavy-duty towing applications — gooseneck, fifth wheel, and turnoverball hitches for trucks that haul every day.

B&W products are designed, tested, and manufactured in the USA. Known for their signature chrome finish, precision fit, and best-in-class tow ratings. We install them and stand behind them.

  • Gooseneck & fifth wheel hitches
  • Turnoverball designs for versatility
  • Chrome and powder-coat finishes
  • Made in the USA
  • Precision-engineered for your truck
Get a B&W Quote
B&W Hitches heavy duty trailer hitch
B&W gooseneck hitch
B&W fifth wheel hitch

Complete the Setup

Everything to Tow Right.

A hitch alone doesn't make a towing setup. We install the full package — wiring, brake control, weight distribution — all in one visit.

CURT T-One wiring harness
CURT
Trailer Wiring
Plug-and-play T-One connectors and 4-pin/7-pin custom harnesses for all major truck and SUV applications. Installed clean — no hacking into factory wiring.
CURT brake controller
CURT
Brake Controllers
Proportional and time-delayed brake controllers for trailers with electric brakes. Required in most states for trailers over 3,000 lbs. We wire it right the first time.
CURT weight distribution system
CURT
Weight Distribution
Weight distribution systems level out heavy tongue weight loads and reduce sway — essential for towing large campers, horse trailers, and heavy equipment.

Why Come to Us

Done Right.
The First Time.

Proper Torque Specs

A hitch under-torqued can shift or fail under load. We install everything to manufacturer torque specs — because when you're towing 10,000 lbs, the bolts need to be right.

Clean Wiring Every Time

We route wiring harnesses correctly, zip-tie everything clean, and make sure your trailer lights work before you leave the lot. No exposed wires. No DIY headaches down the road.

We Sell & Install

One stop. We carry CURT and B&W in stock, spec the right hitch class and accessories for your vehicle, and install it the same day in most cases.

Ready to Tow?

Get a free quote online or call us. We'll spec the right setup for your truck and what you're towing — often same-week installation.

Get a Free Quote Call (562) 424-6744

Common Questions

Got Questions?

Most trailer hitch installs take 1–2 hours at 3J's Auto Body. We can do the hitch and wiring harness in the same visit so you leave fully ready to tow.
CURT hitches are vehicle-specific and bolt on using your existing factory holes. No drilling required on most applications. We'll confirm fitment for your exact vehicle before we start.
Class I–II for lighter loads like bike racks and small trailers. Class III–V for boats, campers, and heavy equipment. Call us at (562) 424-6744 and we'll spec the right setup based on your vehicle's tow rating and what you're hauling.
Yes — we install the full towing package. Hitch, ball mount, and wiring harness in one visit. We carry plug-and-play T-One connectors for most trucks and SUVs.
CURT is ideal for standard receiver hitches, ball mounts, wiring, and everyday towing at excellent value. B&W is the premium choice for heavy-duty gooseneck, fifth wheel, and turnoverball applications. We carry both and will recommend the right one for your needs.
Yes — we install trailer brake controllers for trailers with electric brakes. Most states require a brake controller when towing trailers over a certain weight. We wire it correctly and make sure your setup is legal and safe before you leave.