Performance Transmission Bands & Clutches

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    • TCI® - Heavy Duty Sprag and Drum Assembly
      (0 reviews)
      # sp119086
      Heavy Duty Sprag and Drum Assembly by TCI®. Designed utilizing the latest technology, this product by TCI features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $31.27 - $805.35
    • TCI® - Heavy-Duty Forward Drum Assembly
      (0 reviews)
      # sp98201
      Heavy-Duty Forward Drum Assembly by TCI®. Comes in a kit. Includes Sprag Assembly. TH400 Heavy Duty Forward Drum & Input Shaft. TCI® Hardened Input Shafts are constructed from hardened, aircraft quality Vaccu Melt 300 billet steel or...
      High quality at an affordable priceExpertly made from premium materials
      $410.69
    • TCI® - Iron Drum/HD Sprag Assembly
      (0 reviews)
      # sp98211
      Iron Drum/HD Sprag Assembly by TCI®. Comes in a kit. Includes Sprag Assembly. TH350 Sprag & Steel Drum Assembly. TH350 iron direct drum with HD 36-element sprag assembly. CA Prop 65 WARNING - This product contains chemicals known to...
      High quality at an affordable priceExpertly made from premium materials
      $398.60
    • TCI® - Steel Drum Kit
      (0 reviews)
      # mpn358591630
      Steel Drum Kit by TCI®. Comes in a kit. For 10-clutches (Drum, Hub, Piston, Clutches, Steels). These Powerglide drum kits are configured to use high performance frictions and steels, which significantly increase lock-up surface area and...
      High quality at an affordable priceExpertly made from premium materials
      $395.68
    • TCI® - Transmission Gear Set
      (0 reviews)
      # sp107961
      Transmission Gear Set by TCI®. Designed utilizing the latest technology, this product by TCI features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or exceed...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $99.79 - $1,165.45
    • Transmission Specialties® - Transmission Drum
      (0 reviews)
      # sp119194
      Transmission Drum by Transmission Specialties®. Designed utilizing the latest technology, this product by Transmission Spesialties features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle,...
      High-quality kit to meet all standards set by professional installersUpgrades the feel and response of your automatic transmission
      $96.24 - $1,032.41
    • J.W. Performance® - Heavy Duty Direct Steel Drum with 36 Element Sprag
      (0 reviews)
      # sp153543
      Heavy Duty Direct Steel Drum with 36 Element Sprag by J.W. Performance®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $533.59
    • ATI Performance® - Clutch Drum
      (0 reviews)
      # sp28632
      Clutch Drum by ATI Performance®. Drum Material - Aluminum. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...
      Equipped with Torrington bearingsTriples clutch life
      $588.06 - $1,113.99
    • Sun Coast® - Billet Drum
      (0 reviews)
      # sp110687
      Billet Drum by Sun Coast®. The Sun Coast Billet Direct Drum for ySun Coast 1994-2007 Dodge 5.9L Cummins Automatic Transmission is CNC machined from C1040 solid steel. This billet drum contains NO CAST IRON! It will hold 5 - 6 friction...
      Crafted with advanced technology to stay ahead of competitorsFinely tuned, forward-thinking design ensures superior longevity
      $771.15 - $872.03
    • Sun Coast® - Billet Input Drum
      (0 reviews)
      # mpn4476509049
      Billet Input Drum by Sun Coast®. "Proprietary" is a word you will get use to seeing when reading about and purchasing from Sun Coast. Sun Coast take great pride in providing you and the rest of the diesel industry with innovations that...
      Crafted with advanced technology to stay ahead of competitorsFinely tuned, forward-thinking design ensures superior longevity
      $727.50
    • Sun Coast® - M3GA Drum Assembly
      (0 reviews)
      # mpn4476509048
      M3GA Drum Assembly by Sun Coast®. Includes: Billet outer drum, Billet inter drum, Pressure plates, Clutches and steels. "Proprietary" is a word you will get use to seeing when reading about and purchasing from Sun Coast. Sun Coast take...
      Crafted with advanced technology to stay ahead of competitorsFinely tuned, forward-thinking design ensures superior longevity
      $1,801.55
    • FTI® - Direct Drum Kit
      (0 reviews)
      # mpn4560210587
      Direct Drum Kit by FTI®. 10 Clutch. FTI Offers a wide variety of performance transmission parts including high performance input drums, output shafts and planetary gears.
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $339.99
    • FTI® - Direct Drum Spring Retainer
      (0 reviews)
      # mpn4560210722
      Direct Drum Spring Retainer by FTI®. FTI Offers a wide variety of performance transmission parts including high performance input drums, output shafts and planetary gears.
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $7.49
    • TCI® - 29 Element Forward Sprag
      (0 reviews)
      # sp29106
      29 Element Forward Sprag by TCI®. Comes in a kit. All new, OEM assemblies. Replacing the forward sprag assembly and low-reverse roller clutch is a must when building a high performance 700R4/4L60E. Our forward sprags are 29-elements...
      High quality at an affordable priceExpertly made from premium materials
      $91.22
    • TCI® - 5.0 ratio Hemi Band Apply Lever
      (0 reviews)
      # sp29108
      5.0 ratio Hemi Band Apply Lever by TCI®. This is a bolt-in replacement for the wimpy lever found on most run-of-the-mill Torqueflites. Gain greater shift feel and apply force with this Hemi-style 5.0 ratio lever. CA Prop 65 WARNING -...
      High quality at an affordable priceExpertly made from premium materials
      $47.37
    • TCI® - Automatic Transmission Flex Band
      (0 reviews)
      # sp112049
      Automatic Transmission Flex Band by TCI®. Transmission bands are thin steel bands that are anchored to a transmission’s case and enable gear selection and action. Hydraulic transmission fluid provides the necessary force to activate...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $31.76 - $290.78
    • TCI® - High Gear Piston for 5 Clutches
      (0 reviews)
      # mpn2312009838
      High Gear Piston for 5 Clutches by TCI®. Designed utilizing the latest technology, this product by Transmission Spesialties features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $43.50
    • TCI® - High Performance Frictions
      (0 reviews)
      # sp29141
      High Performance Frictions by TCI®. 5 Pieces. Designed utilizing the latest technology, this product by TCI features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to...
      High coefficient of friction & high temperature resistancePower apply applications feature grooved surface area to improve clutch apply time
      $25.83 - $197.27
    • TCI® - Intermediate Outer Race
      (0 reviews)
      # sp98210
      Intermediate Outer Race by TCI®. 1 Piece. Super outer race designed from 300m steel and directly replaces the stock. CA Prop 65 WARNING - This product contains chemicals known to the State of California to cause cancer, and/or birth...
      High quality at an affordable priceExpertly made from premium materials
      $134.37
    • TCI® - Low Reverse Roller Clutch Transmission Sprag
      (0 reviews)
      # sp29146
      Low Reverse Roller Clutch Transmission Sprag by TCI®. Replacing the forward sprag assembly and low-reverse roller clutch is a must when building a high performance 700R4/4L60E. Our forward sprags are 29-elements which makes them an...
      High quality at an affordable priceExpertly made from premium materials
      $42.59
    • TCI® - Nitrided Steel Automatic Transmission Plate
      (0 reviews)
      # sp112050
      Nitrided Steel Automatic Transmission Plate by TCI®. A clutch plate is part of a series of discs between the pressure plate and flywheel inside of a transmission. The round plate has a friction sensitive surface that allows it to grip...
      Nitrided surface treatment infuses nitrogen ions into steel to increase surface hardness for initial & long-term wearWear and fatigue resistance more than doubles
      $18.41 - $142.64
    • TCI® - Reverse Gear Piston for 5 Clutches
      (0 reviews)
      # mpn2312011542
      Reverse Gear Piston for 5 Clutches by TCI®. Designed utilizing the latest technology, this product by Transmission Spesialties features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $37.99
    • TCI® - Sprag with 34-Elements
      (0 reviews)
      # sp98279
      Sprag with 34-Elements by TCI®. Designed utilizing the latest technology, this product by TCI features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or exceed...
      High quality at an affordable priceExpertly made from premium materials
      $113.80
    • TCI® - Transmission Steel Plate
      (0 reviews)
      # sp107959
      Transmission Steel Plate by TCI®. A clutch plate is part of a series of discs between the pressure plate and flywheel inside of a transmission. The round plate has a friction sensitive surface that allows it to grip and sits next to the...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $22.69 - $203.06
    • TCI® - Xtreme Performance Transmission HD Friction
      (0 reviews)
      # sp107965
      Xtreme Performance Transmission HD Friction by TCI®. A clutch plate is part of a series of discs between the pressure plate and flywheel inside of a transmission. The round plate has a friction sensitive surface that allows it to grip...
      Provide smoother shifts and longer life in high horsepower applicationsDesigned with softer, more resilient base paper for less wear against opposing steel plates
      $22.56 - $101.09
    • Transmission Specialties® - Automatic Transmission Band
      (0 reviews)
      # sp120901
      Automatic Transmission Band by Transmission Specialties®. If you want to rebuild your transmission system so it will improve your vehicle's performance and drivability, rely on this high-quality kit from Transmission Specialties. Take...
      High-quality kit to meet all standards set by professional installersUpgrades the feel and response of your automatic transmission
      $89.06 - $274.31
    • Transmission Specialties® - Automatic Transmission Clutch Plate
      (0 reviews)
      # mpn358579223
      Automatic Transmission Clutch Plate by Transmission Specialties®. Steel. Designed tor those drivers who want only the best when it comes to their vehicle's transmission system, this state-of-the art automatic transmission assembly...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $11.32
    • Transmission Specialties® - Automatic Transmission Clutch Set
      (0 reviews)
      # sp120907
      Automatic Transmission Clutch Set by Transmission Specialties®. Reduces Friction, frees up horse power. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...
      High quality at an affordable priceExpertly made from premium materials
      $6.38 - $173.71
    • Transmission Specialties® - Servo Piston
      (0 reviews)
      # sp129101
      Servo Piston by Transmission Specialties®. If you want to rebuild your transmission system so it will improve your vehicle's performance and drivability, rely on this high-quality kit from Transmission Specialties. Take the guesswork...
      High-quality kit to meet all standards set by professional installersUpgrades the feel and response of your automatic transmission
      $66.49 - $90.49
    • Transmission Specialties® - Transmission Outer/Inner Race
      (0 reviews)
      # sp129107
      Transmission Outer/Inner Race by Transmission Specialties®. Designed utilizing the latest technology, this product by Transmission Specialties features premium quality and will perform better than advertised. Perfect for your vehicle...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $146.78 - $202.00




    Automatic transmissions are technological marvels that will deliver many miles of dependable operation – providing they’re driven “normally” and only have to handle the power output of a stock engine. But modify that engine and put more horsepower through the transmission, and run the vehicle hard in racing or spirited street driving, and you can end up with excessive slippage, poor performance, and in extreme cases, broken parts. To get all the power your engine makes to the rear wheels reliably, and firm shifts every time, beef up your automatic with our performance transmission bands and clutches.

    When most enthusiasts think of upgrading an automatic transmission for high performance and racing use, high-stall speed torque converters and shift kits to modify the valve body are the first hop-ups that come to mind. While these are important improvements, if the capability and strength of the clutch packs and bands that hold and drive members of the transmission’s planetary gearset aren’t also upgraded, you can still end up with slippage that causes lazy shifts, doesn’t get power to the ground, and results in accelerated wear, excessive heat build-up, and eventual transmission failure.

    To get the gear multiplication necessary for acceleration and the gear reduction that allows high vehicle speeds at low engine rpms, manual transmissions use paired sets of gears that rotate on parallel shafts. In contrast, automatic transmissions use planetary gearsets for all forward gears and reverse. A planetary gearset consists of 3 members: a central sun gear, an outer ring gear, and the planetary gears in between. All gears are in constant mesh and most automatic transmissions have at least 2 planetary gearsets. To achieve the desired gear ratios, one planetary member is driven by the engine while another is held stationary, with the remaining member becoming the output. Clutches and bands, applied by hydraulic pressure, are the components used to control the planetary members.

    Clutch packs consist of multiple, alternating steel and friction material-lined plates housed in a drum or the transmission case. The friction plates are internally splined to fit into grooves on a hub, while the steel plates have external splines that engage grooves in the drum or case. A piston compresses the plates, locking the hub and drum together when hydraulic fluid pressure is applied. Return springs disengage the piston when pressure is removed. Bands are friction material-lined flexible metal rings that surround and are used to stop rotating clutch drums. One end of the band is attached to the transmission case, while the other is engaged by a hydraulic piston in a servo. The servo contains a spring to disengage the band when hydraulic pressure is removed.

    Hydraulic pressure in the transmission is developed by a pump driven by the torque converter and then routed to the valve body. Valves or electric solenoids in the valve body direct hydraulic pressure to the appropriate bands or clutch packs to shift gears. Vehicle manufacturers typically engineer a certain amount of designed-in slippage to automatic transmissions to achieve smooth, soft shifts. They accomplish this with shift timing in the valve body that extends time between gears and with the design of the friction material used in the bands and clutch packs. Unfortunately, for performance driving this can result in lazy shifts, poor acceleration, and faster clutch and band wear, which is only made worse when more power is put through the transmission.

    Retuning the transmission for faster, firmer shifts with a transmission controller, valve body, or valve body kit is a good start, but for best results and the most reliability it should be accompanied by performance bands and clutches. We offer clutch friction plates lined with high temperature resistant material that has a high coefficient of friction for maximum grip and durability, as well as heavy-duty steel plates that are nitrided to increase hardness and resist wear. We also have hubs and drums made of stronger material like billet steel so you can forget about spline stripping, including components that can hold more plates than OE for increased clamping force. Our performance bands have the same quality friction lining and are wider than OE for increased clamping power. In addition to the above, in this section you’ll also find heavy-duty billet servos that can apply more force to the bands for greater holding capacity.

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    Performance Transmission Bands & Clutches Reviews

    Average rating:    5 - 1 review
    5 of 5
    Fast Delivery
    The product is great.
    Posted by Patrik ( Skotterud, AA) / September 15, 2017
    Was this review helpful for you? Yes


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