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Sonnax input carrier kits transform OE wide-ratio automatic transmissions into a close ratio for game-changing acceleration on the track. Manufactured and engineered for outstanding durability, these kits keep your engine in the optimal power band, while allowing a longer pull in first and second gears, improving consistency and performance. The input carrier gears are precision-ground to OE standards and feature thrust washers with a highly wear-resistant, PTFE-coated material, plus a thicker captured bearing. Lube channels direct oil to the pinion pins, and the carrier can be disassembled for inspection and service. Stay in the power band with Sonnax input carrier kits.
( 3 )
$855.99
FTI Performance planetary gear sets are available in a variety of ratios, lengths, and strengths. Materials range from 4340 steel, to heavy-duty 300M, and 32-spline output billet cryo'd for those needing extreme performance. No matter the type of racing you're involved in, you can find the right planetary gear sets at FTI Performance. Order the set recommended for your transmission application.
( 1 )
$829.00
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$3,263.00
Summit Racing™ 5-pinion planetary gears are drop in upgrades that replace the standard 4-pinion planets. The extra pinion gives your transmission extra torque carrying capacity and extends the life on the geartrain when used for towing or performance.
Not Yet Reviewed
$139.99
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$149.99
ATI 2.75 low gear sets are ideal for use on motor homes, towing vehicles, street cars, and big-c.i.d., high-torque motors that are rpm-limited and are using a 4.10 rear gear. ATI 2.75 low gear sets increase your gear ratio leaving the starting line, and then go back to the original rear gear in high gear. This increase is usually equal to one numerically higher gear ratio.
Not Yet Reviewed
$487.99
On Sale
Boost the efficiency of your transmission with some help from the folks at TCI Automotive. These Ford C-6 low-drag planetary sets replace troublesome stock thrust washers with needle bearings to reduce friction and help extend transmission life. These low-drag planetary sets include: * Forward planetary assembly * Forward clutch hub * Reverse planetary assembly * Reverse ring gear * Rear sprag inner race * Roller bearing rear park gear
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$414.95
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$421.95
Pay for what you need and get the quality you want--Sonnax planetary assemblies allow you to choose your level of performance. Their extreme assemblies offer the very best for the most demanding applications with advanced process sun and pinion gears. The 3-step process--cryogenic tempering, shot-peening, and super finish--develops gears with improved grain structure and stability, so they are tougher, more wear-resistant, and better performing. Extreme assemblies are available in four ratios, two flange tooth counts, and two output shaft lengths. Performance, quality, and value--Sonnax extreme planetary assemblies deliver them all. Sonnax extreme assemblies may feature: * Gear ratios: 1.80, 1.69, 1.58, 1.65 * 9310 advanced process sun and pinion gears * 12-tooth or 24-tooth billet clutch drum flange * HY-Tuf or 300M rolled spline long OE or short output shafts * High-strength, steel-backed, PTFE thrust washers * Maximum-duty ring gear
Not Yet Reviewed
$1,309.85
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$3,773.38
Those drivers who insist on conducting three or four stall tests in the pits and conducting three or four dry burnouts prior to staging at wide-open throttle should use the heavier planetary. If you're using more than 500 hp, you're going to want to equip your performance vehicle with ATI's high-impact gear sets. These precision-balanced carriers are manufactured from 9310 material for added strength and durability and are designed to provide heavy-duty output.
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$1,127.85
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$2,067.99
Sonnax premium planetary assemblies are available in various configurations to meet different build requirements. The output shaft is available in the OEM length or short length, and the billet-machined drum flange in 12-tooth or 24-tooth. They are a big step up from standard case-hardened and tempered gears. Sonnax's top-quality racing gear material (SAE9310), combined with a freeze-tempering process (-150 degrees F), results in gears with improved grain structure and stability--tougher and more resistant to wear. Sonnax premium planetary sets are fully assembled and ready to install.
Not Yet Reviewed
$669.08
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$1,084.31
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 best way to connect huge power to Sonnax Extreme planetaries for great run after run with minimum downtime. Additional details: * Choose from 1.58 or 1.65 ratio big shaft rear Sun Gear kits * Gear prepped to accept big input shaft's fine-tooth rear spline * Custom, PTFE-coated thrust washer replaces sun gear thrust bearing
Not Yet Reviewed
$439.47
TCI Powerglide bolt-together planetary gears optimize both strength and ease of use. Built with racers in mind, the straight-cut gears are precisely manufactured from heat-treated 9310 steel and feature steel-backed, bit-metal washers with a wear-resistant PTFE layer to reduce friction and heat. The sun gear and input shaft features roller thrust bearings, rather than washers, to avoid failures. Their cleverly engineered design, plus the variety of gear ratios, offers the strongest and lowest-friction gear sets available. Choose planetaries capable of withstanding any racing environment--TCI Powerglide bolt-together gears.
Not Yet Reviewed
$1,186.95
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$1,493.95
Hughes Performance HD replacement planetary sets consist of all gears housed in a stock carrier with a forged ring gear. They are recommended for use in Stock, Super Stock, and some bracket classes.
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$252.99
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$2,682.99
RevMax 6-pinion steel overdrive planetary gear sets are must-have upgrades for your 47RH or 47RE, and direct replacements on a 48RE transmission, if you need to replace your overdrive geartrain. The factory 47RH/47RE transmissions are equipped with either a 4- or 5-pinion planetary known to gall and shed gear teeth, causing either noise complaints or a complete overdrive section failure. RevMax 6-pinion setup increases load capacity and is at a 15-degree which ensures quiet operation. They are direct drop-ins and will fit any 47RH or 47RE transmission, as well as replace your 48RE overdrive geartrain. The sets come complete with planetary, ring gear, sun gear, bearing apply plate, and bearing.
Not Yet Reviewed
$399.00
Sonnax heavy-duty forward sun gears are direct replacements for all 31-tooth sun gears used in 2.84/1.55 ratio gear sets. Manufactured from 9310 heat-treated alloy steel, these gears are significantly tougher and stronger than OE or other aftermarket sun gears—and are the perfect option for demanding applications. These are the same sun gears included with Sonnax Smart-Tech direct drum and shaft kits (76656-01K) that combine high-strength direct drum with integrated intermediate stub shaft. (Can be used with stock-size shaft and drums for medium-duty or budget builds.)
Not Yet Reviewed
$137.24
Rear-engine dragsters and boat racers will appreciate these ATI Performance Shorty gear sets. They reduce the overall length of the Powerglide by 10 in. and provide you with that extra room when you need it. Each kit includes the shortened planetary set in your choice of ratios, an aluminum housing, a bolt kit, and instructions.
Not Yet Reviewed
$406.85
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$2,049.99
TCI offers these low gear replacement planetary sets for several of the more popular transmissions. With additional reduction in first and second gear, these sets work great in all types of applications requiring additional gear for better takeoff. In everything from heavy drag cars to off-road 4x4s to tow trucks, an RCI low gear planetary set can improve low-end power.
Not Yet Reviewed
$672.95
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$1,020.95
These TCI Powerglide replacement gears are 1.82 stock replacements designed for street use in small block applications. These gears include a special reinforced stock planetary. A steel girdle is welded over the housing, greatly increasing torque capacity.
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$260.95
Summit Bucks
ACDelco automatic transmission gears are your GM-recommended replacements. They offer the quality, reliability, and durability of OE, plus the perfect fit. Need original equipment automatic transmission gears? This is the place to find the parts for your application.
Not Yet Reviewed
$140.99
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$432.99
Summit Bucks
ACDelco GM Genuine Parts automatic transmission sun gears are a GM-recommended replacement component for one or more of the following vehicle systems: automatic transmission/transaxle, and/or manual drivetrain and axles. These GM original equipment gears will provide the same fit, performance, durability, and service life you expect from General Motors. They're available for thousands of applications.
Not Yet Reviewed
$238.99
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