Understanding Differential Upgrades: Limited Slip Vs. Open

When it comes to putting power down to the pavement, few upgrades make a bigger difference than the right differential. Whether you’re launching from a dig, powering through corners, or hitting the track, upgrading to a limited-slip differential (LSD) can completely transform how your car handles traction and torque.

At WOT Performance Parts, we’re all about optimizing performance where it counts, and differentials are one of the most underrated places to start. Here’s what you need to know about limited slip vs. open differentials, and which one is best for your build. Contact us today for more information.

What Is A Differential?

Your differential sits between the drive wheels and allows them to rotate at different speeds—essential when turning corners.

When your car turns, the outside wheel travels farther, so it needs to spin faster than the inside wheel. The differential lets this happen.

But not all diffs are built equally, especially when it comes to performance.

What Is An Open Differential?

Most stock vehicles come with an open differential, which is designed for comfort and everyday driving.

How It Works:

An open diff sends power to the wheel with the least resistance.

That’s the problem.
 If one wheel is off the ground, on ice, or losing grip, all the power goes there. The wheel with traction gets nothing.

Open Diff Pros:

✅ Smooth, predictable in daily driving
✅ Low maintenance
✅ Inexpensive

Open Diff Cons:

 🚫 Terrible traction in low-grip conditions
 🚫 Spinning one wheel under hard throttle
 🚫 Not ideal for performance driving or spirited cornering

What Is A Limited Slip Differential (LSD)?

A limited slip differential improves traction by distributing power more effectively between both wheels, even when one wheel loses grip.

It sends torque to the wheel with more traction, helping you stay planted during:

• Launches
  
• Corner exits
  
• Wet or uneven terrain
  

There are several types of LSDs, but the goal is the same: more grip, more control, more speed.

Types Of Limited Slip Differentials

🔧 Clutch-Type LSD

• Uses clutch packs to engage both wheels
  
• Can be aggressive or subtle, depending on tuning
  
• Common in many aftermarket setups
  

Best for: Street/track cars, autocross, and drifting

🔧 Torsen (Torque-Sensing) LSD

• Uses gears instead of clutches
  
• Smooth engagement, no electronics
  
• Only works if both wheels have some traction
  

Best for: Street performance, canyon carving, mild track use

🔧 Helical LSD

• Similar to Torsen, it uses helical gears
  
• Smooth, quiet, maintenance-free
  
• Struggles with one-wheel-off-the-ground situations
  

Best for: Fast road and all-weather performance

🔧 Electronic LSD (E-LSD)

• Uses sensors and actuators to apply locking force
  
• Found in some modern vehicles (BMW M models, Ford Focus RS)
  
• Fast, responsive—but complex and expensive
  

Best for: High-end OEM applications or full street/track hybrids

🔧 Spool (Locked Diff)

• No slip at all—both wheels spin together
  
• Not street-friendly, causes tire hop/skipping in turns
  

Best for: Drag racing only

Benefits Of A Limited Slip Differential

✅ Better Launches
 No more one-wheel peels—power goes to both wheels for stronger, more stable acceleration.

✅ Improved Corner Exit Speed
 Distributes power across both wheels under load, so you can get back on throttle earlier in corners.

✅ All-Weather Grip
 Handles rain, snow, and uneven road surfaces much better than open diffs.

✅ More Fun, More Control
 Whether you’re drifting, carving canyons, or launching from a stoplight—LSDs give you the grip to drive hard and stay in control.

Is A Limited Slip Right For You?

Ask yourself:

• Do you launch hard or track your car?
  
• Do you drive aggressively in corners?
  
• Are you running wider tires, more power, or sticky rubber?
  
  

If you answered yes to any of the above, an LSD is worth it.

Open Diff Vs. LSD: Quick Comparison

WOT Tip: Upgrade Your Diff With Matching Gear Oil

Performance differentials need quality fluid. Whether it's clutch-type or helical, use high-quality diff oil that matches your LSD type—some require specific additives for optimal operation and longevity.

Power Through The Corners With WOT Performance Parts

At WOT Performance Parts, we offer a full lineup of limited slip differentials, install kits, and performance gear oils for all driving styles—from weekend canyon cruisers to dedicated track monsters.

Get the grip, control, and confidence your build deserves—because putting down power properly is where performance begins.

Shop now and take control of every turn—with the right diff at the right price.