Mancini Racing’s Got Your Official Mopar 8-3/4 Clutch Type Sure Grip Units


Nothing is more embarrassing than a one-wheel peal burnout. If you’re gonna demonstrate the power of your mighty Mopar, hazing one shoe ain’t the way to do it! That’s why it’s time to crack open that pumpkin and slam in a Sure Grip differential. Thankfully, you won’t have to walk miles of swap meet vendors or peruse eBay for somebody’s worn out, used junk either. Mancini Racing has you covered once again!

Per Mancini, “Our reproduction Mopar 8-3/4″ clutch Sure-Grip (“Powr-Lok”) is perfect for your street or mild strip car. They include upgraded one-piece 30-spline side gears and 4340 chrome moly spider gears. These units a blueprinted and ready for installation into your housing.”

These carriers (priced at $459.99) are tough as nails and will fit within your factory 8.75 housing whether you’ve got a 489 or 742 case. Mancini also has all the rebuild parts to complete your swap.

And if you’re looking to seriously step up your hot rod’s hook-up, Mancini also has a huge variety of Eaton Detroit TrueTrac and Locker differentials.

These bad boys are designed to deliver 100-percent of the torque and power to both rear wheels while automatically allowing wheel speed differentiation when rounding a corner. Gone are the days of the super noisy lockers that rattled and ratcheted while you drove; these are smooth, quiet and punch harder than Mike Tyson.

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Kevin Shaw

Editor-in-Chief – Kevin Shaw is a decade-long powersports and automotive journalist whose love for things that go too fast has led him to launching Mopar Connection Magazine. Almost always found with stained hands and dirt under his fingernails, Kevin has an eye for the technical while keeping a eye out for beautiful photography and a great story. He's also the co-author of "The Chrysler B-Body Restoration Guide."

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