If you’re like me, you’ve probably stared at a dented undercarriage or a shaky engine mount at 2 a.m. and thought, “Wait—can I actually do this myself?” Full disclosure: I’m the owner of an automotive brackets and mounts supplier, and I get DMs every single week from people who want to skip the overpriced mechanic visits and install these parts themselves. I’m not here to sell you a part without calling out the mistakes beginners make (I’ve made them all, trust me), or to give you some textbook guide that doesn’t account for the weird, wonky way a 2012 Civic’s bracket lines up differently than a 2019 Corolla’s. Let’s cut the crap—this is how you actually get it done, step by step, with zero fancy tools or broken parts. Automotive Brackets and Mounts

First, let’s talk about the number one mistake I see: not checking if you’ve got the right part. I’ve had people email me at 10 p.m. saying they ordered an engine mount for their 2016 Silverado, only to realize it’s for the gas model… and they have the diesel. Duh. Don’t be that person. Before you even touch a wrench, grab your VIN (it’s on your dashboard, driver’s side) and cross-reference it with our part number on the site. Also, give the old mount a once-over—look for cracks, fluid leaks (if it’s a hydraulic mount), or that terrible wobble when you turn the wheel. If it’s damaged, the new part you order should be an exact match, not a “close enough” version. Pro tip: if you’re working on a truck or SUV, double-check the year range—some 4×4 models have slightly different bracket bolt holes than 2WD ones, and trust me, you don’t want to find that out on your back under the car at dusk.
Next, gather your stuff. You don’t need a $500 socket set—most of these installs use 15mm, 18mm, or 21mm sockets, a ratchet, and a breaker bar (those are lifesavers for rusted bolts that’ve been sitting for 10 years). Also, get some penetrating oil—WD-40 works, but PB Blaster is way better for stuck bolts. A jack and jack stands are non-negotiable, by the way. Don’t even think about using just a scissor jack; that’s how people end up pinned under their own car. Grab a mechanic’s creeper if you’ve got one, or a old blanket, and a container to catch any fluid that might drip (brake fluid or coolant is common on undercarriage parts). Oh, and wear gloves—rusty bolts and sharp edges are no joke, and you don’t want to end up at urgent care over a tiny cut that could’ve been avoided.
Now, the actual install. Let’s start with safety first: put the jack under the frame (not the oil pan or exhaust—those are fragile) and lift the car enough so you can slide under easily, then set the jack stands under the designated lift points (you can find these in your owner’s manual). Give the car a little shake to make sure it’s secure before you get under there—no shame in double-checking, I do it every single time.
Step 1: Remove the old brackets and mounts. This is where the penetrating oil comes in. Spray the bolts holding the old part on, and let it sit for 15–20 minutes. If it’s really rusted, spray it and come back in an hour. Once it’s soaked, use your ratchet (or breaker bar, if it’s stuck) to loosen the bolts. Don’t crank too hard—if it snaps, you’re gonna have a way bigger problem on your hands (literally). Once the bolts are out, gently pull the old mount away. For engine mounts, you might need a friend to help support the engine or transmission while you remove the old part—never leave the engine hanging by a single mount, that can crack the block or bend things. For body brackets (like those that hold the taillight or bumper), it’s way simpler—just unscrew the bolts and pull the old bracket off. While you’re at it, take a minute to clean the area where the new mount will go—use a rag to wipe away dirt, rust, or old gasket material, so the new part sits flush.
Step 2: Prep the new part. Take your new bracket or mount out of the packaging (yes, do this before you’re under the car fumbling with boxes) and check that all the bolt holes line up with the ones on your car. If it’s a mount with rubber or hydraulic parts, make sure the rubber isn’t cracked or squished from shipping—rare, but it happens. Sometimes you’ll need to add a small amount of thread locker to the bolts (not too much, just a thin coat) to keep them from vibrating loose while you drive. I always include a tiny tube of thread locker in every order for this exact reason.
Step 3: Install the new part. Line up the new bracket or mount with the bolt holes, and hand-tighten the bolts first—this keeps everything aligned so you don’t strip the threads when you crank them down. Once all bolts are hand-tight, use your ratchet to tighten them. Don’t over-tighten! I see beginners do this all the time, and it cracks the bracket or breaks the bolt. Follow the torque specs in your owner’s manual, or if you don’t have those, tighten until the bolt is snug, then give it a quarter turn more. For engine mounts, make sure the engine or transmission is properly supported before you fully tighten all bolts—you want the mount to hold the weight, not the bolts.
Step 4: Double-check everything. Before you lower the car, go around and make sure all bolts are tight, no tools are left under the car, and the part is secure. Start the car (or test the bumper, if that’s what you replaced) and check for any weird noises or wobbles. If it feels off, turn it off and go back under—better to fix it now than drive around with a loose mount that could fall off.
Now, let’s talk about some common mistakes you’ll want to avoid. First, ignoring rusted bolts. If a bolt won’t budge after 30 minutes of penetrating oil, don’t force it—you might need to cut it off, and that means more tools and extra time. Second, buying a cheap off-brand part. I get it, everyone wants to save money, but a $10 mount from a no-name brand can split after a month, which will damage your car way more than the $20 you saved. Third, skipping safety. Jack stands are there for a reason—no matter how big or small your car is, never work under a car that’s only on a jack.
If you run into trouble at any point—if the bolt snaps, the new part doesn’t line up, or you’re not sure if you tightened it enough—hit us up. We’re not just a parts supplier; we’re here to help with questions, and we’ll make sure you get the right part the first time. We work with all makes and models, from compact cars to heavy-duty trucks, and we’ve got a huge inventory of brackets and mounts for every job. Don’t waste time or money on a mechanic when you can do this yourself with a little know-how and the right parts.

If you’re ready to get started, just reach out to our team to talk through your project, and we’ll help you find exactly what you need, with fast shipping and expert support. We’re here to make your DIY car project a success, no matter your skill level.
Auto Air Suspension Parts References:
- Automotive Maintenance and Light Repair (AMLR) Curriculum, National Institute for Automotive Service Excellence (ASE)
- Chassis Service Manual Guidelines, Automotive Service Association (ASA)
- DIY Auto Repair Safety Best Practices, Occupational Safety and Health Administration (OSHA)
Ningbo Fenghua Bolong Machinery Manufacturing Co., Ltd.
Ningbo Fenghua Bolong Machinery Manufacturing Co., Ltd. is one of the most professional automotive brackets and mounts manufacturers and suppliers in China, also supports high quality customized service. With abundant experience, we warmly welcome you to buy durable automotive brackets and mounts made in China here from our factory.
Address: No. 27 Hehai Road, Binhai New Area, Fenghua Economic Development Zone, Ningbo City, Zhejiang Province
E-mail: seven@nbbolongmachinery.com
WebSite: https://www.nbbolongmachinery.com/