CorvSport Curates: The Top 5 Corvette Parts Replaced Every Month

At CorvSport, we’ve long said that true Corvette Obsession isn’t just about horsepower numbers and glossy paint — it’s about knowing what’s happening beneath the surface. That’s the driving force behind CorvSport Curates, our ongoing series designed to spotlight the sharpest minds in the Corvette space so you don’t have to sift through the noise yourself. Now in our 17th episode, we’re blending two of our most popular lanes: a practical buying guide highlighting real-world Corvette issues, and our expanding Tips & Advice series built to help thousands of readers confidently navigate ownership. CorvSport is your one-stop source for making smarter decisions and getting the most from your Vette experience. We bring you the intel — and today, we’re cutting straight to it, with our bonus CorvSport Hot Takes designed to save you time.

Real-World Data From C&S Corvettes

With over 90,000 YouTube subscribers, a fully equipped and manned Corvette-dedicated repair facility, and new, used, and reproduction Corvette parts to keep your Vette looking and performing at its best, C&S Corvettes has established itself as one of the top voices in the Corvette business. While we have no affiliation with C&S, we recognize that they are an asset and resource for our readers.

In today’s featured video, Blake from C&S breaks down the Top 5 Corvette parts they replace every single month. This isn’t theory. It’s not speculation. It’s what repeatedly rolls into their bays — from routine maintenance items owners delay to the recurring mechanical failures that surface across C5, C6, and C7 generations. These are the patterns you want to understand before they become surprises in your own garage.

The CorvSport Dealer Perspective

Helping you navigate your Corvette journey is our in-house retired used-car dealer, who brings 17 years of experience in the car biz and ownership of 20 Corvettes to the table. After each identified issue, he’ll layer in what we call “The CorvSport Dealer Perspective” — insights shaped by years in the business and long-term Corvette ownership. This is the angle you won’t hear in most shop videos.

What This Means For Your Vette

Whether you’re buying, selling, or simply maintaining the Corvette already in your garage, understanding what gets replaced every month at a Corvette-dedicated repair facility gives you a powerful advantage. Patterns matter. Repetition tells a story. And when a shop sees the same five repairs over and over again, that’s not a coincidence — that’s ownership reality.

Now, let’s get to the Top 5 Corvette Parts Replaced Every Month by C&S Corvettes. And don’t forget, we have the full video and our complete CorvSport Curates database waiting for you below.

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The Top 5 Corvette Parts Replaced Every Month

View the full video from C&S Corvettes below!

The data from this curation is fully credited to C&S Corvettes

#1 — Moisture Is The Real Enemy, Not “Old” Fluid

♦ The CorvSport Hot Take: Blake makes a critical distinction here: synthetic fluid doesn’t simply “expire” from sitting — moisture contamination is the real threat. Systems that sit, especially in cars driven infrequently, accumulate condensation inside the differential, transmission, and brake components. Over time, additives separate, and moisture compromises performance. The takeaway? Fluid service isn’t about panic maintenance — it’s about restoring system integrity so your Corvette shifts cleaner, brakes stronger, and runs cooler.

♦ In Blake’s Own Words: “Number one is the stuff people usually put off. Fluid services, transmission fluid, differential fluid, brake fluid, coolant — all those need to be changed. Now, I know you guys are going to jump on me, but synthetic fluid does not break down over time from the car sitting. I understand that. Here’s what happens, though. The system takes on moisture. Additives can separate over time and condensation forms on the inside of the diff, transmission, and brake system, especially on cars that aren’t driven often.

Changing fluid isn’t about the oil breaking down. It’s about removing the moisture and contamination from a system that has been sitting. Fresh fluid helps these cars shift better, brake better, and run cooler. If you don’t remember the last time it was done, it’s probably worth doing.”

♦ The CorvSport Dealer Perspective: With the correct ramps and tools, this is something that is fun for the enthusiast to keep up on — it was rewarding for me to be on top of my own Corvette maintenance. Also, if you have the six-speed manual, don’t forget about the clutch fluid (located right near the firewall on the driver’s side).

All images are credited to C&S Corvettes

#2 — The C5 Lighting Wake-Up Call

♦ The CorvSport Hot Take: This one isn’t a repair — it’s a modernization. Blake points out that the factory halogens on the C5 are dim, dated, and simply outmatched by modern standards. LED upgrades transform visibility, aesthetics, and nighttime usability in one move. It’s a functional improvement that also sharpens the car’s presence — and once owners experience the difference, they rarely revert.

♦ In Blake’s Own Words: “Number two is C5 LED lighting upgrades. This isn’t a failure or a fix. It’s an upgrade that we do here constantly. The original halogens are weak, they’re yellow, and they make the car look a little dated. Our LED kits brighten the headlights, tail lights, and interior. It’s a cleaner, brighter, and actually more useful at night look. Once the C5 gets LEDs, it doesn’t go back.”

♦ The CorvSport Dealer Perspective: As someone who has owned several C5s, including my second ’99 FRC that I put over 100,000 miles on, I can attest to how lousy the factory headlights are. We have these LED upgrade resources in our database.

#3 — When “Shift To Park” Isn’t Just A Warning

♦ The CorvSport Hot Take: The C6 automatic shifter harness is a classic small-component, big-headache scenario. Those two micro switches determine gear position, and when they begin to fail, the car sends incorrect signals — triggering “shift to park” warnings or even locking the shifter in place. Blake’s point is clear: once inconsistency starts, it doesn’t self-correct. Replacement of the harness is the definitive fix, restoring proper communication between the shifter and the vehicle’s electronics.

♦ In Blake’s Own Words: “Number three, the C6 automatic shifter harness. That harness has two micro switches attached to it that tell the car what gear you’re in. Those switches wear out, become inconsistent, and the car stops getting the correct signal. When that happens, two things can happen. The dash flashes “shift to park,” or the shifter is stuck in park, or the car won’t come out of park because it’s not getting the correct signal. Once the micro switches start acting up, the car either will stay stuck or it’ll keep throwing those warnings until the harness is replaced.”

♦ The CorvSport Dealer Perspective: This one is really bringing back some memories, as the last C6 I flipped off my lot was intermittently experiencing this issue. I had intended to keep her for a while to scoot around town, but after this and a few other nagging issues, I let the next owner worry and care — with full disclosure and a smoking deal.

#4 — Front Engine Leaks Don’t Fix Themselves

♦ The CorvSport Hot Take: On aging C5 and C6 models, front crank seals and oil pan gaskets begin to show their years. Blake highlights a comprehensive approach: crankshaft pulley, front crank seal, belts, tensioners, pulley bolt, and crank pulley pin kit — ensuring the pulley cannot move again. This isn’t a patch job; it’s preventative reinforcement. Addressing both the front seal and oil pan gasket together keeps the engine clean, dry, and protected for the long haul.

♦ In Blake’s Own Words: “Number four, the C5 and C6 front engine kit and oil pan gaskets. We install this kit consistently. It includes the crankshaft pulley, the front crank seal, the belts, the tensioners, the pulley bolt, and the crank pulley pin kit so that the pulley cannot move ever again.

By this age, the front seals have started to go and the oil pan gasket isn’t far behind it. We replace both of those so that the engine leaves here clean, dry, and healthy for years to come.”

♦ The CorvSport Dealer Perspective: I was lucky to avoid costly repairs like this, although that C6 I flipped was a little moist underneath. Blake didn’t touch on it, but the rear main seal is the job that’s really a beast on the C5 and C6. Before you buy, make sure to lay down a towel and thoroughly inspect the Vette from front to rear, especially the rear end, which is known to drip.

#5 — Torque Tube Vibration: The Driveline Tell

♦ The CorvSport Hot Take: Blake calls this the most common issue for a reason. Across C5, C6, and C7 generations, torque tube bearings and couplers eventually wear, tear, or separate. The symptom is unmistakable — vibration running down the center of the car and into the driver’s seat. Rebuilding with new bearings, couplers, and seals restores the smooth, quiet driveline feel owners remember. If you feel that centerline vibration, history suggests the torque tube is the likely source.

♦ In Blake’s Own Words: “Number five, and actually the most common one on the list, torque tube rebuilds. C5, C6, and C7 all run a torque tube, and they all eventually have the same issues. The bearings wear out, the couplers tear or separate, and you’ll feel vibration in the driver’s seat running down the length of the car.

We rebuild multiple torque tubes every month. New bearings, couplers, and seals, and the driveline goes back to being smooth and quiet the way you remember it. If you’re experiencing a vibration down the center of the car, that’s probably the culprit.”

♦ The CorvSport Dealer Perspective: This repair brings back memories, too. One more thing to note about rebuilding your torque tube–this is a job you should do “while you’re in there” doing the clutch, as the labor savings and peace of mind will be worth it.

Featured Video

Video Preview From C&S Corvettes:

“Welcome back to another episode of Blake’s Takes here at C&S Corvettes! In today’s video, Blake walks you through the Top 5 Corvette parts we replace every single month in the shop. From routine service items to the big repairs we see over and over again, these are the real-world issues that come through our doors nonstop.”

Video Stats (as of 2/19/2026):

Views: 8,833
Likes: 836
Comments: 25
Length: 5:15

Our Full CorvSport Curates Database

We hope this episode has been helpful, and the team at CorvSport truly appreciates having you as a reader. Make 2026 our best year yet and join the CorvSport movement!