6 Things You Have to Check On The Frame When Buying A Used Bronco

Before you take the plunge and invest in a used Bronco, it’s crucial to conduct a thorough inspection of the frame. As specialists in the field of Early Broncos, especially frames and chassis, we have put together a list of six key things to look for. 

Each step in this guide will provide you with insights into recognizing common problem areas in used Classic Broncos, so you can make an informed decision on your Bronco purchase and not get in over your head.

Rusty Bronco Frame on Used Bronco Where to Look for Damage

Examining the Steering Box Mounting Area for Cracks

The steering box is a critical part of your Bronco, and it’s imperative to ensure that the area where it bolts to the frame is in good condition and isn’t cracked. Cracking is one of the most common issues in this area. A detailed examination will help you spot any potential problems that could affect the vehicle’s steering performance. 


Looking Out for Rust Near the Rear Axle Bump Stops

The area from the rear axle bump stops to the rear body mounts is particularly prone to rusting. This location on the underside of the frame rail can accumulate moisture and debris, leading to rust. It’s crucial to closely inspect this region for any signs of corrosion that could weaken the structural integrity of the frame.

This is not something you want to be surprised with later!

6 Things To Check On The Frame When Buying A Used Bronco

Investigating Rust Beneath the Rear Shock Mounts

Another area susceptible to rust is underneath the rear shock mounts. Here, rust can lurk beneath the surface, undetectable at first glance. Therefore, be prepared to poke and dig at this area with a screwdriver to uncover any hidden corrosion that could spell trouble down the line.

Spending 10 minutes to thoroughly inspect the frame for rust can save you a lot of heartache later.

Checking for Signs of Frame Straightening or Repairs

When buying a used Bronco, it’s essential to check for any signs of previous frame straightening or repairs. These could indicate a past accident or damage. An irregularity in the frame’s alignment, inconsistencies in the welding, or paint overspray could be telltale signs of previous repair work.

Evaluating the Front and Rear Frame Horns for Damage

The front and rear frame horns are key structural components of the Bronco and should be thoroughly inspected for any signs of damage. This can include bending, cracks, or rust. Damage to these areas could affect the vehicle’s overall strength and safety.

Inspecting Body Mount Holes for Rust

Finally, one of the most common places to find rust is in the body mount holes, particularly under the body mount pads. A rusted body mount can lead to serious structural problems over time, so it’s imperative to inspect these areas carefully.


With this comprehensive guide from Kincer Chassis, you now have the knowledge to thoroughly inspect a used Bronco frame. Remember, your Bronco is an investment, and ensuring its structural integrity is crucial for its longevity and your safety. If you’re ever unsure or need expert advice, our team is always ready to help you make the best decision for your Early Bronco purchase. 

And if that time has come when you’ve determined it’s better to just replace the frame or you want a completely new chassis, we’re here to make sure you get the best and have all your questions answered.

It can be overwhelming and you might feel like you don’t even know where to start and that’s okay! Let us guide you through the process of building your dream Bronco so that in the end you get exactly what you want and you get to go out and live your adventure!

Reach Out to Kincer Chassis for Your Early Bronco Needs

At Kincer Chassis, we’re not just experts in Early Bronco frames and chassis—we’re passionate about them. Whether you’re buying a used Bronco or need advice on maintaining one, we’re here to help. Reach out to us for comprehensive assistance and let us guide you on your Early Bronco journey.

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