Rebuilds & Upgrades

Enhance the Performance of a Ford AOD Transmission Pan

Enhance the Performance of a Ford AOD Transmission Pan

GEARSTAR PERFORMANCE 6 minute read

The Ford AOD (Automatic Overdrive) transmission is a workhorse, powering classic Mustangs, Crown Victorias, and F-150s for decades. But if you’re pushing...

Choosing the Right Upgrade for a Turbo 350 Transmission Pan

Choosing the Right Upgrade for a Turbo 350 Transmission Pan

GEARSTAR PERFORMANCE 6 minute read

The GM TurboMatic 350 (TH350) is a legendary transmission, powering classic muscle cars, hot rods, and project vehicles for decades. But if you’re...

Upgrading Your 4L60E Valve Body for Performance

Upgrading Your 4L60E Valve Body for Performance

GEARSTAR PERFORMANCE 6 minute read

SUMMARY: Upgrade to a rebuilt valve body for firmer shifts, improved durability, enhanced control, and better performance for towing or racing...

Should You Modify Your 4L60E Valve Body? Pros and Cons

Should You Modify Your 4L60E Valve Body? Pros and Cons

GEARSTAR PERFORMANCE 7 minute read

Modifying your 4L60E transmission’s valve body can enhance shift performance and extend transmission life but comes with risks such as installation mishaps, a...

How Do I Know if My Transmission Solenoid is Bad?

How Do I Know if My Transmission Solenoid is Bad?

GEARSTAR PERFORMANCE 10 minute read

A bad transmission solenoid causes delayed or erratic shifting, slipping, harsh shifts, or a flat refusal to shift at all. Other warning signs are...

All You Need To Know About The Components Of 4L80E Level 4 Transmission

GearStarAdmin 7 minute read

Undoubtedly, the GM 4L80E Performance Transmission Level 4 is a name to be reckoned with. With a staggering horsepower capacity 800 and the ability to handle up...

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