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Sierra Marine drive unit caps are made to outperform the original equipment part(s) they are replace. Each Sierra product is engineered to withstand the harsh marine environment while meeting today's high horsepower engine specifications. Order the drive unit component designed for your application.
Not Yet Reviewed
$253.99
Sierra Marine shafts meet or exceed the original equipment part it replaces. These marine drive unit components are available for use in Mercruiser Alpha, Gen II, Bravo I/II/III and Vazer engine applications. Includes one upper swivel gimbal ring shaft. Order the model for your application needs.
Not Yet Reviewed
$320.99
Sierra Marine offers prop shafts developed for use with OMC and Johnson/Evinrude engines. They have a lot of great features, including exceptional performance quality, durability, and high reliability. Sierra's propeller shafts are made with the industry's best-grade materials and are finished with a minimal quality of leftover tensions, and they are corrosion-resistant. All Sierra products are equal to or better than the original equipment parts that they are meant to replace. For more than 50 years, Sierra has been unmatched in quality and backed by rigorous engineering, testing, and manufacturing standards to produce the best parts in the marine industry. Sierra Marine's commitment to excellence ensures the highest degree of confidence where it counts the most: out on the water. Order the prop shaft designed for your application needs.
Not Yet Reviewed
$359.99
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$379.99
Sierra Marine offers kits to help you rebuild your gear box. Each kit contains the gears you need to get your boat back on the water. Order the model recommended for your watercraft engine application.
Not Yet Reviewed
$288.99
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$480.99
Sierra Marine offers a wide range of OEM-equivalent parts to maintain and/or repair your watercraft, including gearcase overhaul kits. These overhaul kits are designed to replace outdated or damaged components to restore performance and functionality and have been engineered to meet today's high horsepower engine demands while withstanding the harsh marine environment. For over 50 years, Sierra Marine has supplied the best aftermarket parts in the marine industry—so boaters can enjoy the best of times on the water. Upgrade your boat with Sierra's gearcase overhaul kits.
Not Yet Reviewed
$386.99
Sierra Marine forward gear sets replace old worn gears with renewed performance. Offering an OE fit and function, they include forward and pinion gears. Service your boat with Sierra forward gear sets.
Not Yet Reviewed
$353.99
Sierra Marine offers gearcase seal kits for the purpose of sealing a connection between two parts or flanges with flat surfaces with accuracy for trouble-free installation, functioning, and safety. Wherever a union or flange is necessary, gaskets stop leaks, and replacement is recommended each time the equipment is taken apart and reassembled with the new gasket. For decades, Sierra has proudly been offering high-quality engine and drive parts and accessory kits as a trusted name in today's marine industry. Order the Sierra Marine gearcase seal kit designed for your application needs.
Not Yet Reviewed
$296.99
Sierra is a leading supplier of marine engine and drive parts, offering 1,000's of parts including driveshafts. These quality components are designed to meet or exceed the OE part(s) they replace. For 50 years, Sierra Marine has proudly offered high-quality engine and drive parts as a trusted name in the marine industry. All Sierra Marine products are engineered to meet today's high horsepower engine demands, while withstanding the harsh marine environment. Choose the driveshaft designed for your application needs.
Not Yet Reviewed
$489.99
On Sale
Yukon Gear & Axle Dura Grip positraction carriers offer great traction and strength, and yet are not overly aggressive for the streets. These nodular iron or steel replacements are 4-spring, Raybestos composite, clutch-style, limited-slip carriers—with internal gears machined from forged 4320 steel with stronger teeth. Assembled in the USA, the Yukon differential carriers are rebuildable, allowing for repairs or modifications without buying a new unit. They're available for fitment with nearly two dozen axle models. What are you using to transfer power? Choose smooth operation with strong lockup abilities to transfer torque—benchmarks of the Yukon Gear & Axle Dura Grip positraction carriers.
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$358.00
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$609.99
$322.20
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$518.49
Ford Performance Parts Traction-Lok differentials optimize your vehicle's traction by transferring the power to both rear wheels. These limited slip differential units use heavy plate-style clutches to ensure your engine's full power potential makes it to the ground. Perfect for the street or strip, these differentials will accommodate the anti-lock brake exciter ring found on most late model vehicles.
( 37 )
$352.99
Summit Racing™ Ford 9 in. Trac-Loc differentials replace your OE units with strength and value. Our 4-pin limited slip units are new, not remanufactured, with more strength than your stock piece. Summit Racing™ Trac-Loc's are ready for your heavy-duty application at a lighter price making them a popular racing must have. These differentials are built with a steel case and extra support material in crucial areas, so you can do burnouts at the track on the weekend and drive it to the grocery store on Monday without worries. Aim your engine power at your wheels with Summit Racing™ Ford 9 in. Trac-Loc differentials.
( 34 )
$379.99
On Sale
Yukon Gear & Axle offers differential carriers for a wide range of applications. Yukon uses top-quality materials and the latest manufacturing technologies to produce strong, durable carriers that you can depend on for proper traction. These aftermarket units are available in a variety of styles—such as limited-slip, open, Traction-Lok, and locker—for fitment on dozens of axle models and vehicle apps.
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$422.99
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$609.99
$368.89
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$518.49
Strange C-Clip axles are designed for those wanting to upgrade their axles to stronger, more reliable units. These axles are manufactured from the same high-strength steel as the rest of the S-Series performance axles that have proven themselves in race and road cars all over. Their hardened surface protects the axles and bearings, giving them a longer service life and their deeper case hardening offers superior torsional strength when compared to OEM axles. Each axle features fully ground bearing surfaces, is designed to work with OEM bearings, and is drilled for screw-in and OEM press-in studs. Upgrade your axes to help reign in and plant all of the horsepower your hot rod or race car can muster with these Strange C-Clip axles.
( 21 )
$389.99
On Sale
Increase the traction capability of Dana 30 front differentials with Spartan Helical LSDs by USA Standard Gear. Compared to other types of limited-slip differentials (LSDs) or Positraction units, these mechanisms provide smoother engagement, quieter operation, and deliver no-worry, maintenance-free performance. Get better linear traction when you order the USA Standard Gear Spartan limited-slip differentials designed for your Dana 30 applications!
Not Yet Reviewed
$383.99
$345.59
Locking hubs are popular accessories for preparing to engage or disengage your front wheels in a 4WD vehicle. Through years of use and abuse, your locking hubs may become damaged or well worn. Dorman stocks a line of direct fit replacements to ensure proper 4WD operation. Whether automatic or manual units, they're manufactured using high quality materials for long lasting durability. The hubs are available for specific differential types, so match up your specs with the correct Dorman parts.
( 4 )
$252.99
Is your positraction unit giving you a headache? Replace it with Allstar Performance spools. These steel full spools cost less and are much lighter in weight than conventional carriers, while delivering equal power to both rear wheels for guaranteed traction at all times. Plus, no moving parts means more strength! Do you want even less weight for your Ford 9 in.? Choose these 7075-T6 aluminum full spools from Allstar.
Not Yet Reviewed
$289.99
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$299.99
Replace your old gear carrier with a Moser Engineering full spool to save weight, improve performance, and increase the life of your rear-end components. The steel spools are heat-treated and precision-machined; while lighter aluminum spools are available for Ford 9 in. and GM 12-bolt units. The aluminum models feature a thicker ring-gear flange and a large-diameter midsection for increased strength; they weigh approximately 4 lbs. less than steel spools. Order the full spool recommended for your axle make/model.
( 10 )
$280.00
Trans-Dapt Performance offers a complete line of aluminum differential covers to protect your automotive gears from dirt, water, snow, and other elements. Axle components keep your wheels moving, so quality housing covers are a wise investment. These shell-type units feature stout, aluminum finned construction for lightweight, heat-dissipating gear protection. The covers are available in a variety of finishes: sandblasted with polished highlights, fully polished, natural aluminum, or black powdercoated. The polished covers typically include a gasket and mounting bolts; some applications may also include filler or drain plugs. Many sizes and bolt configurations are available; just match your vehicle specs to the correct Trans-Dapt replacement cover.
( 5 )
$251.99
SVL Drivetrain differential carriers are the assembly cases you need to start your rebuild. These unloaded steel units are available for open and limited-slip differentials, and SVL offers coverage for all makes of vehicles. Backed by Dana, you can rest assured that your choice of SVL differential cases will be the foundation to drive your wheels with value and performance.
Not Yet Reviewed
$317.99
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$484.99
On Sale
Yukon Gear & Axle ring and pinion sets are strong but quiet performers. Designed to handle some of the harshest conditions, these sets utilize the latest design and manufacturing technologies to afford you a smooth running gear that's durable and easy to set up. Yukon ring and pinions are available in hundreds of size, ratio, and axle model options. Whether you're on the street, off-road, or at the track, you'll experience unrivaled power and gear performance. Order the model recommended for your application.
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$286.99
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$831.99
$254.14
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$546.54
On Sale
Clearance
Yukon Gear & Axle master overhaul kits are what you need for a successful differential rebuilding. All of the high-quality parts that you need are provided to do your job right. Yukon master kits go through extensive research to ensure a perfect fit and hassle-free install utilizing the best components, including Timken bearings and races! Choose from their huge selection of kits to meet your replacement application. Yukon Gear & Axle master overhaul kits may include: * Pinion bearings * Carrier bearings * Pinion seal * Crush sleeve or preload shims * Pinion depth shims * Carrier shims (varies by application) * Gear marking compound and brush * Pinion nut * Baffles and slingers (varies by application) * Gasket and/or silicone * Ring gear bolts (for application) * 20-page instruction manual
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$282.99
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$641.99
$254.69
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$545.69
On Sale
Clearance
Yukon Gear & Axle 1541H alloy axles are part of their extensive line of general replacement and high performance axles for passenger car, truck, and SUV applications. They feature high-quality alloys and the latest in heat-treating technologies to provide strong axles for off-road, street, and track use. Direct-fit replacements are available for dozens of axle models associated with countless cars and trucks. Additional rear axle features include: * One-piece forged 1541H axles are 25 percent stronger than OE 1040/1050 axles * Full-floating axles available for select applications * Rolled splines provide 30 percent strength increase over cut splines * Larger spline upgrades available * 2-piece tapered axles available * Offered in many lengths * Wide variety of bolt patterns
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$627.99
$250.74
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$533.79
On Sale
Yukon Gear & Axle Grizzly lockers offer fierce power! These robust lockers are the ultimate mechanical locking differentials, replacing your entire carrier assembly. Yukon Grizzly lockers feature forged cases with 8620 internals and a patent-pending internal locking mechanism for maximum strength. Assembled in the USA, these lockers will provide 100 percent power to both your tires, while still allowing for disengagement while negotiating turns. Whether your application is for the street, off-road, or drag racing, Yukon Gear & Axle Grizzly lockers will have your rig roaring with performance.
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$472.00
$424.80
On Sale
Yukon Gear & Axle Trac-Loc carrier cases are for Ford 8 in. and 9 in. housings and are available in street or race versions. These robust cases are the ultimate mechanical locking differentials, replacing your entire carrier assembly. Yukon Trac-Loc carrier cases feature a left case half of 1541H billet steel for increased strength, eliminating the weak point where most failures are found. The top half is made from forged steel. Whether your application is for the street or drag racing, Yukon Gear & Axle Trac-Loc carrier cases will have your rig roaring with performance.
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$332.99
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$580.99
$283.04
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$493.84
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