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No weak link! Sonnax heavy-duty one-piece input shafts are custom-forged from one solid piece of ultra-high-strength 300M steel. Much better than the weak OE 2-piece shaft/hub design, this single piece delivers a more robust build that will work hard longer. With durability and performance features which are second to none; your only choice should be Sonnax heavy-duty one-piece input shafts.
Not Yet Reviewed
$440.14
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$678.70
FTI Performance billet input shafts are specially engineered for high-horsepower engines equipped with GM 4L80E/4L85E transmissions. They're constructed from hardened, aircraft-quality 300M billet steel for added strength and lubrication holes for increased flow and strength. These ultra-durable components feature a resized diameter to provide optimum stress distribution along the entire length of the shaft, and along the extended high gear splines to the oil ring. FTI Performance billet input shafts are stronger than OE, making them a necessary component for pro-street and off-road applications. For high performance components and excellent workmanship, put your trust in FTI Performance parts.
( 3 )
$309.00
Transmission Specialties offers options for Powerglide input shafts. Their wide selection allows you to choose the strength and pricing to fit your horsepower and budget. From 300M to forged 4340 steel to CNC-machined AerMet®100 that is virtually unbreakable, Transmission Specialties delivers the level of performance you want and need with their variety of Powerglide input shafts. Select the Powerglide input shaft model for your application.
Not Yet Reviewed
$556.88
FTI Performance offers options for Powerglide input shafts. Their selection allows you to choose the strength and pricing to fit your horsepower and budget. From forged 4340 steel to forged 300M to CNC-machined ER100 that is virtually unbreakable, FTI Performance delivers the level of performance you want and need with their variety of Powerglide input shafts.
( 7 )
$149.00
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$599.00
ATI torsional input shafts work like a torsional spring bar--twisting and returning to totally eliminate breakage, while reducing shock loads to the gear train. They are manufactured from top-quality 300M or Vasco for maximum durability. Available for GM Powerglide or TH400 splines, these ATI torsional input shafts will add some reliability to your drivetrain.
( 11 )
$189.95
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$881.99
Summit Racing™ input shafts are manufactured to meet your high performance needs. These shafts are forged from either 4340 or 300M steel. and come in a variety of applications and different power ratings to fit your budget.
( 10 )
$142.99
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$497.99
Transmission Specialties' 4L80E 300M extended spline input shafts have all the latest and greatest updates that make them the strongest on the market. Feed hole changes have been made to make the shaft stronger. The splines that go into the OD planet have been lengthened and the undercut shoulder which has a very small inside diameter, has been removed. TSI also used a hobb to cut this spline—as compared to others who single point cut, which makes for a weaker spline and is considered to be the number one spot of failure for other aftermarket billet shafts. Crafted from premium-grade 300M material, the 4L80E input shafts are engineered to be more durable than traditional shafts, ensuring reliable and consistent performance, even under extreme loads. The extended design offers increased spline engagement into the OD planet, reducing the chance of shaft failure and improving overall strength. Whether you're racing, towing, or just looking to improve your vehicle's performance, make an upgrade to your transmission with high-quality TSI components.
( 2 )
$350.39
The Ford AOD transmission is a popular upgrade for older vehicles that originally ran 3-speed transmissions. When you want to get rid of lugging in third and fourth gear then you'll need TransGo input shafts. These hardened shafts work with cast iron or stamped steel drums, and allow one to run a custom high stall or stock C6 converter with the AOD giving it open converter performance. Not only will this get rid of the lugging but they will also take care of coast down chug. Your 2-3 and 3-4 shifts will be softer with the open converter setup, but you can firm them up if you so desire with TransGo's AOD-HP Reprogramming kit (TRG-AOD-HP). When you want to get the most out of your AOD transmission then go with TransGo input shafts.
( 1 )
$385.71
These TCI hardened input shafts have increased lubrication, flow, and strength, a resized diameter that provides optimum stress lubrication along the entire length of the shaft, and extended high-gear splines to the oil ring. They will require some minor machining of the stator support.
( 8 )
$195.95
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$727.95
Install one of these Hughes hardened input shafts in your transmission and you can be confident that you won't have any twisting or breakage. For high-horsepower and trans-brake applications, Hughes hardened input shafts made from 4340 billet steel will exceed the need.
( 5 )
$210.99
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$532.99
Transmission Specialties offers options for Powerglide input shafts. Their wide selection allows you to choose the strength and pricing to fit your horsepower and budget. From 300M to forged 4340 steel to CNC-machined AerMet®100 that is virtually unbreakable, Transmission Specialties delivers the level of performance you want and need with their variety of Powerglide input shafts. Select the Powerglide input shaft model for your application.
Not Yet Reviewed
$158.69
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$163.86
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
Stop worrying about input shaft failure when running the GM Powerglide in the most extreme applications. Sonnax offers the only big input shaft upgrade with custom components designed to work together for reliable performance. Whether you have an existing assembly or start from scratch in the gear ratio of your choice, it's the best way to connect huge power to Sonnax Extreme planetaries for great run after run with minimum downtime. The only way to prevent twist and breakage from massive torque is to increase the input shaft diameter, and the core of the big shaft system is big input shaft kit 353532-01K. The shaft strikes the perfect balance between strength and ease of installation with a 1 1/8 in. diameter and a unique, high-strength spline that still fits through the front sun gear. It delivers 35 percent more strength than standard 1 in. shafts, a dramatic upgrade for racers that want to take full advantage of the lightweight and efficient Powerglide automatic transmission. (Note: The Sonnax big shaft system for Powerglides requires changing to a 35-spline turbine hub.) Kit contents: * Shaft * Clutch Hub Big Shaft features: * Torsional, ringless design * Heat-treated, 300M steel with advanced processing * 35 splines (AOD-style) at converter Clutch Hub features: * 1.500 in. tall hub for use with 10-clutch setups * High-strength chromoly steel * Custom fit for the big shaft
Not Yet Reviewed
$1,480.72
Are you tired of breaking your transmission's input shaft on hard launches at the track? Cure those problems for good with one of these high-strength input shafts from TCI. Made from Vaccu Melt 300 or VASCO 300 steel for maximum durability, these input shafts reduce unwanted breakage and will keep you in the hunt for a win.
Not Yet Reviewed
$788.95
Transmission Specialties offers options for Powerglide input shafts. Their wide selection allows you to choose the strength and pricing to fit your horsepower and budget. From 300M to forged 4340 steel to CNC-machined AerMet®100 that is virtually unbreakable, Transmission Specialties delivers the level of performance you want and need with their variety of Powerglide input shafts. Select the Powerglide input shaft model for your application.
Not Yet Reviewed
$556.88
Based on an ultra-durable, one-piece forging, Sonnax Smart-Tech input shaft and piston kits have a hub with longer front clutch splines. Combining longer splines with a thinner billet aluminum direct piston allows for one extra OE thickness direct friction plate, while keeping original thickness steels, backing plate, original retaining ring and OE clutch clearances.
( 1 )
$1,322.46
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