Speedmaster Drive Shaft Transmission Slip Yoke

Speedmaster Transmission Slip Yokes: Forged for Performance

When a transmission swap or high-horsepower build is on the table, every link in the driveline matters — and the transmission slip yoke is no exception. Speedmaster has built a dedicated line of drive shaft transmission slip yokes engineered to outlast and outperform the tired OEM cast iron pieces that so many builders overlook. These aren't stopgap replacements; they're purpose-built upgrades for enthusiasts who take their drivetrain seriously.

Billet CNC, Forged Steel & More — Built to Handle Big Power

Speedmaster's slip yoke lineup falls under their well-regarded PCE216 product series, covering a wide range of domestic transmission applications. The materials tell the story: billet CNC-machined aluminum and steel as well as forged steel construction, depending on the application. Speedmaster billet steel transmission slip yokes allow you to use larger-than-stock universal joints for high-horsepower applications, and each precision slip yoke is forged and CNC-machined from durable materials, designed for strength that surpasses OE-style yokes. That focus on material quality and machining precision is exactly what separates these yokes from the stock hardware still clinging to so many project cars and trucks.

Broad Application Coverage: GM, Ford & Chrysler

One of Speedmaster's strengths in this category is the breadth of fitment across the most popular American transmission platforms. Their PCE216 lineup includes yokes for:

• GM applications — including the Turbo 350, Powerglide, Muncie, Super T10, and the modern 6L80E (32-spline, forged steel, 1350 series)
• Ford applications — covering the C4, C6, AOD, and T5 transmissions in both heavy-duty steel (1330 series) and billet CNC (1350 series) variants
• Chrysler/Mopar applications — including the legendary 727 Torqueflite, available in billet CNC with 1350-series U-joint compatibility

Speedmaster yokes allow the use of larger-than-stock U-joints for higher horsepower applications , making them a natural choice for anyone running a stroker engine, forced induction, or a high-stall converter setup where stock driveline components simply aren't up to the task.

The 1350 Series Advantage

Many of Speedmaster's slip yokes are designed around the robust 1350-series U-joint (also known as the Spicer 331 series), a significantly stronger joint than the 1310 typically found on factory driveshafts. A forged yoke can mean the difference between winning and losing — understanding that, Speedmaster TDS created a full line of super-strong forged and billet yokes that offer maximum strength for high-horsepower cars as well as a sleek look for a show finish.

For GM 6L80E owners specifically, the design is simple — swap and go, no adapters required, using the proven 1350 U-joint — and pairing this transmission yoke with a CV differential yoke results in the best combination, allowing a plunging CV at the rear and a fixed 1350 at the front.

A Warranty You Can Count On

Speedmaster yokes come backed by a 12-Month Limited Worldwide Warranty , giving builders confidence whether the vehicle is destined for the dragstrip, the cruise night, or weekend canyon carving. Each yoke is sold individually, allowing you to source exactly the fitment you need without paying for parts you don't.

Whether you're refreshing a classic muscle car's transmission tunnel or upgrading a modern swap build, explore the full Speedmaster brand catalog or browse all drive shaft transmission slip yokes to find the right PCE216-series yoke for your application.