* Original Tire Size: What size tires did your El Camino come with from the factory? This is the best starting point. Checking your owner's manual or the sticker on the driver's side doorjamb will tell you.
* Wheel Width: A 235/70R15 tire is relatively wide. Your El Camino's rims need to be wide enough to accommodate it properly. Too narrow a rim can cause the tire sidewalls to bulge excessively, leading to poor handling and potential damage.
* Backspacing: This is the distance between the mounting surface of the wheel and the inner edge of the wheel. Incorrect backspacing can cause the tire to rub against the suspension, body, or other components.
* Suspension Modifications: If your El Camino has any modifications to the suspension (lowering kits, lift kits, etc.), this will impact how much clearance you have for the tires.
In short: While the 235/70R15 is a common size, you should absolutely verify compatibility before purchasing and installing them. Measure your existing tire's width and the width of your rims. Consult a tire shop or an El Camino parts specialist. They can help you determine if the 235/70R15 will fit safely and correctly on your vehicle. Improperly sized tires can lead to handling problems, premature tire wear, and even damage to your vehicle.
