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Advance Adapters Saturn overdrive units make great additions to older Jeeps and International Harvester Scouts with Dana 18 transfer cases. They offer the needed gearing that those vehicles were lacking, plus the fully synchronized feature allows for shifting on the fly. Advance Adapters Saturn overdrive units can handle up to 300 lbs.-ft. of torque—well within the range of most stock engines. More product features and benefits include: * Originally designed and developed by Warn Industries, Advance Adapters purchased the tooling, engineering data, and inventory from Warn Industries in 1991 * Advance has incorporated a few upgrades, but they are all still interchangeable with the original Warn overdrives * Will install directly on the backside of the transfer case through the inspection cover * No cutting or modification of the drivetrain is necessary, with only minor modifications required to the floorboard for the shifter * No relays or electrical connections needed * Shifter linkage and handles sold separately
( 4 )
$1,232.00
Sierra Marine trim cylinder kits are designed for use in Mercruiser Alpha Gen II stern drives. These repair kits are for use with the front and rear trim cylinder. For more than 50 years, Sierra Marine 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 kit for your application needs.
Not Yet Reviewed
$1,063.99
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
$1,198.99
Sierra Marine upper gear kits replace old worn gears with renewed performance. Offering an OE fit and function, Sierra's selection includes kits with gears, gears and seals, and kits with gears, seals, gaskets, and bearings to service different applications.
Not Yet Reviewed
$1,155.99
Summit Bucks
Eaton Detroit Truetrac differentials use a patented design of parallel-axis planetary helix gears to provide a quiet, automatic splitting of torque. They perform like a limited-slip differential under normal driving conditions, automatically transferring torque to the wheel with better traction when ground conditions warrant. These replacement units are available for dozens of axle applications.
( 501 )
$1,013.99
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$1,279.99
Mopar Replacement differential assemblies offer quality, along with an original equipment fit and function to keep your favorite Chrysler, Dodge, or Jeep on the road. You can count on these units to effectively drive your wheels, and keep you moving. Restore and repair your vehicle with genuine Mopar differential assemblies.
( 18 )
$1,130.99
RAM Concept 10.5 dual-disc organic clutch kits usher in a new era of RAM clutch design. The Concept kits introduce modular dual-disc systems with effective performance improvements. Perfected design, better performance, and a competitive price ... what an idea! Designed for use on applications with horsepower rating of up to 750. RAM Concept 10.5 dual-disc organic clutch kits feature: * Higher clamp load 10.5 in. pressure plate offers smooth pedal effort and more surface area to dissipate heat * Poly-coil sprung hub top disc allows for dampening on engagement to eliminate harsh starts and transmission fatigue * Billet modular stands are precision-machined to eliminate distortion and provide a stable platform to house the clutch unit
( 5 )
$1,149.00
Centerforce II clutch kits provide up to a 60 percent increase in holding capacity over stock systems. Their clutch-and-disc sets are recommended for mildly modified vehicles used for street and strip type applications. These units are also very capable for 4WD and off-road use, heavy-duty towing, and commercial applications.
( 47 )
$1,060.95
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$1,616.95
Summit Bucks
Input shaft failure is a common problem in performance GM 4L80-E and 4L85-E automatic transmissions running with extreme horsepower. OE and aftermarket shafts simply don't hold up in these conditions, leading to spline twist and shaft breakage. Sonnax extreme-duty input shafts are manufactured from an exceptionally tough, high-strength Aermet steel alloy with proprietary heat treatment for unrivaled performance and durability. Additional features like an advanced torsional design, plus unique improvements to the spline and sealing ring areas, make these the most durable input shafts available for 4L80-E and 4L85-E units. Additional notes for model 34670-02: * Recommended for applications above 1,000 hp * Heat-treated Aermet steel outperforms all other shaft materials in strength and toughness * Hobbed O.D. carrier spline eliminates deep undercut where other shafts fail * Advanced torsional design with spline, seal ring groove and cross-hole refinements deliver additional strength
Not Yet Reviewed
$1,284.66
RAM Concept 10.5 dual-disc metallic clutch kits usher in a new era of RAM clutch design. The Concept kits introduce modular dual-disc systems with effective performance improvements. Perfected design, better performance, and a competitive price ... what an idea! Designed for use on applications with horsepower rating of up to 1,050. RAM Concept 10.5 dual-disc metallic clutch kits feature: * Higher clamp load 10.5 in. pressure plate offers smooth pedal effort and more surface area to dissipate heat * Poly-coil sprung hub top disc allows for dampening on engagement to eliminate harsh starts and transmission fatigue * Billet modular stands are precision-machined to eliminate distortion and provide a stable platform to house the clutch unit
( 1 )
$1,279.00
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$1,449.00
Factory driveshafts are made from a smaller tube (there are 2 different types) and will flex and bend during hard acceleration, causing the rubber drives to wear out prematurely. The Driveshaft Shop torque tube driveshafts are made from 3 x .125 wall 6061 T-6 aluminum and uses The Driveshaft's own custom machined ends. This ensures that the shaft will not distort or break like the factory units, and offer units rated up to 1000 hp. Choose the driveshaft designed for your vehicle.
( 3 )
$1,024.79
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$1,541.45
On Sale
Yukon Gear & Axle muscle car limited slip and re-gear kits dramatically improve traction and durability by adding a Yukon LSD and an upgraded ring and pinion set to your differential. They also provide an opportunity to generate next-level acceleration by moving to a more aggressive gear ratio. Each kit will include posi-traction unit, ring and pinion gear set, and all required bearings and installation hardware. Select the kit designed for your muscle car.
Not Yet Reviewed
$1,489.99
$1,266.49
Not all converters are what they promise or claim to be. Superior performance costs money--always has and always will. With Yank, you get what you pay for. Yank Performance SS Series torque converters are the ultimate street/strip units, working great on NOS or N/A. All SS Series models are highlighted by a 9.5 in. billet steel construction and a solid billet lock-up clutch. Select from stall speed, transmission type, and single or 3-disc options to purchase your ideal Yank SS converter for your vehicle. Features: * Rated to 650 RWHP * One-piece roller burnished hub for long seal and bushing life * New Torrington bearings * Fully furnace brazed pump and impeller * Hardened input and turbine splines * One free re-stall in first year * 3 yr. warranty
Not Yet Reviewed
$1,098.99
Trail-Gear offers Trail-Creeper 2.28 crawl boxes—ready to bolt onto the front of a top shift-style, gear driven Toyota transfer case. Transfer cases are made from two basic sections, the reduction section and the 4WD section. To build a dual transfer case, two reductions boxes are bolted back-to-back with a dual case adapter. These two are then bolted to a 4WD section. Available with 21 or 23 spline input and output gears, each unit is completely rebuilt and inspected, and has a low range gear ratio of 2.28. Whether you're looking to maintain, optimize, or upgrade, choose Trail-Gear for the quality parts and kit components that you need to give you confidence while driving through even the most difficult obstacles. Important Note: Floorboard and drive shaft modifications are required for dual transfer case installation.
( 3 )
$1,299.99
Clearance
RAM Concept 9.5 dual disc clutch/billet flywheel kits are the perfect entry level dual disc clutch systems. Each kit features an increased clamp load pressure plate, 9.5 in. premium-faced organic or metallic clutch discs, and a RAM surface-ground and balanced billet steel flywheel. The pressure plate provides a silky-smooth clutch pedal feel, while the dual disc provides additional holding capacity when compared to single disc systems. RAM Concept 9.5 units also utilize a sprung hub top disc that helps dampen and quiet the initial clutch engagement, plus a strap driven floater plate eliminates any floater plate rattle concerns. They make excellent choices for LS/LT and Coyote engine swaps, as well as Tremec transmission swaps. So, for an outstanding driving experience, choose a RAM Concept 9.5 clutch kit with flywheel designed for your vehicle's needs. Features and benefits: * A higher clamp-load 2,000 lb. static pressure plate with easy pedal effort * Precision machined billet stand segments to provide a stable mounting platform--no flimsy stamped steel mounting provisions * Precision mounting hardware properly centers the segments to the flywheel for proper balance and vibration-free driving comfort * Strap driven floater plate system assures a quiet, no rattle operation at any rpm * Sprung hub top disc, solid hub bottom disc arrangement helps dampen initial engagement and ease stress on the driveline * Nesting clutch disc hub design provides more spline engagement area on the input shaft and helps spread out the load more evenly to avoid input spline damage * Each unit is preassembled by hand in-house, ensuring the appropriate floater plate gap is achieved for trouble-free installation and performance * Available with either: -- 300 Series organic friction material for applications up to about 650 hp -- 900 Series metallic friction material for use up to about 800 hp
Not Yet Reviewed
$1,480.00
$1,150.00
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$1,580.00
McLeod Magnum Force clutch kits are the perfect choice for racers looking for lightweight, high-torque capacity units. They are specifically designed for oval track, road race, and dry lake applications. The McLeod Magnum Force clutch kits are offered in single, double, and triple-disc combinations. Available for most input shaft splines, the McLeod Magnum Force clutch kits feature optional pin or strap floaters to rattle and have bolt-on counterweights for balanced engines.
Not Yet Reviewed
$1,295.00
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$1,695.00
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.
( 137 )
$1,219.99
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$1,719.99
$1,036.99
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$1,461.99
Not all converters are what they promise or claim to be. Superior performance costs money--always has and always will. With Yank, you get what you pay for. Yank Performance Pro Yank Series torque converters are top-of-the-line 10.5 in. billet units with a solid billet lock-up clutch. They are designed for large shots of NOS and boosted applications. Select from stall speed and single or 3-disc options to purchase the ideal Pro Yank converter for your vehicle. Features: * Rated to 1,200 RWHP * One-piece roller burnished hub for long seal and bushing life * New Torrington bearings * Fully furnace brazed pump and impeller * Hardened input and turbine splines * One free re-stall in first year * 3 yr. warranty
Not Yet Reviewed
$1,098.99
Spidertrax Off-Road's all-new 1480 40 spline front axle stubs are a reinvention of their already proven 35 spline stub shafts. Manufactured from billet 300M aerospace material with an integrated positive locking design—all while achieving 50 degrees of steering—they're the next best thing in stub shaft technology… and the last stub shafts you'll ever need. These 1480 40 spline stub shafts are designed to work with 60 style U-joints and Spidertrax 40 spline Ultimate Unit Bearings. * Aerospace Quality: Spidertrax follows the strictest AMS Aerospace standards for their heat treatment, complete with double tempering, snap tempering, and cryogenic treatment procedures. Parts are sampled to ensure proper grain structure is achieved up to 0.0003 in. from the surface; that's a depth 1/10 the thickness of a human hair! In summary, you're getting the best material and the best heat treatment on the market. * Locked: Turning 40 degrees is impressive, but Spidertrax axle shafts can turn 50 degrees. Engineers achieved this by positively locking the shaft to the Ultimate Unit Bearing with a billet aluminum cap and cap screw. Keeping that stub shaft tightly secured not only helps with driveline vibration, but helps with overall strength of shaft and U-joint. * 40 Splined: Each stub shaft is 40 splined—a size that makes perfect sense, especially when running properly paired inner axle shafts. When sized with the same shaft diameter as inner shafts, stub shafts end up taking the full punishment in your front-end. The stub shaft should be "stronger" than an inner axle because unlike an inner axle, stub shafts have little room to twist, making them more prone to failure. An added bonus: with many drivers running 40 splined rear Ultimate Unit Bearings, having the same unit bearing up front makes for better serviceability and part simplicity.
Not Yet Reviewed
$1,299.00
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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$1,193.99
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$1,362.99
$1,014.89
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$1,158.54
Replacing older OE converters can be a challenge, often compelling customers to settle for makeshift solutions. You can remedy such an issue by choosing a LuK Clutch TorCon torque converter to restore smooth shifting to your automatic transmission. LuK's selection of converters provide the correct fit and function, covering a wide range of vehicles, assuring you will be able to find the proper unit for your vehicle.
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$1,116.99
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$1,245.99
If your diesel pickup truck has major power, or you consistently tow heavy loads, FTI Performance Diesel BA-3 Series torque converters are for you. With three disks, CNC-ported stators, and 4340 turbine splines, strength and performance are built in. Their billet front covers, furnace-brazed and TIG-welded fins, and heavy-duty sprag modifications combine for impressive units. FTI has tested these converters under extreme conditions, ensuring they'll stand up to your towing, driving, and performance racing needs. BA Series converters provide more torque multiplication, lower transmission temperatures, improved acceleration—and, when you can keep your right foot under control, better fuel mileage! Whether you drive a Cummins, Powerstroke, or Duramax, FTI Performance Diesel BA-3 Series torque converters put the power to the ground.
Not Yet Reviewed
$1,249.00
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$1,499.00
Tilton's 6-leg 5.5 Ultra clutch assemblies are a direct replacement or upgrade for the QM Optimum clutch—and they're Tilton's lightest weight 5.5 in. metallic racing clutch. The Ultras are designed and manufactured using proprietary materials and processes that increase service life of the clutch internals. They feature a rigid clutch cover that resists deflection, plus hardened steel thrust buttons installed into the legs—thus providing the most durability and highest performing clutch for the money, bar none. These clutches are rated for 500 lbs.-ft. of torque for two plate assemblies, and up to 750 lbs-ft. for three clutch units.
Not Yet Reviewed
$1,164.50
SPEC Stage 3 clutch kits are designed for street, drag race, pulling, and autocross use. They feature a carbon semi-metallic 6-puck sprung hub disc that has been the leading puck clutch in drivability, life, and torque capacity. These units are intended for street and race cars that require an aggressive but streetable engagement and high torque capacity. Their hubs are double-sprung with spring cover reliefs for flexibility and heat-treated components for strength and durability. Additional features of SPEC Stage 3 clutch kits: * Also available in 3-puck configuration * High-clamp pressure plate * Carbon-graphite friction material * High-torque sprung hub and disc assembly * Bearing and tool kit included * Also great for road racing, rally, and drifting
( 18 )
$1,092.60
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