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Sonnax Smart-Tech drum modules for racing GM TH400 transmissions improve on-track performance and consistency, leading to quicker ETs, more wins, and greater reliability. The TH400 is preferred for its overall durability and multitude of available ratios, but is known to be heavier and less efficient than the popular two-speed Powerglide. Part of the TH400 inefficiency results from the fact that the direct drum counter-rotates, spinning backwards in 1st gear, brakes to a complete stop on the 1-2 shift, then goes from 0 RPM to input RPM on the 2-3 shift. Significant energy is wasted through this cycle that robs power, upsets traction on the shifts, and contributes to broken internal parts. Compared to aluminum direct drums, the Smart-Tech drum module reduces the weight of the counter-rotating components by over 3.3 lbs.! And more significantly, because the weight of the Sonnax counter-rotating parts is closer to the centerline, there's a 68 percent reduction in energy required to stop and restart during the 1-2 and 2-3 shifts. The benefits are increased wheel horsepower, better acceleration, less shock on the shifts, and improved durability. * Complete kit (34555-01K) replaces both forward and direct drums and includes everything from intermediate sprag to the pump; a selection of Sonnax input shafts is available separately. * 100 percent new content, no used core pieces * Includes larger-diameter, 36-element sprag and sprag race that works with OE intermediate clutches * Includes six-friction forward clutch pack and seven-friction direct clutch pack Contents: * Forward Piston Housing * Forward Piston * Forward Piston Return Springs (16) * Forward Spring Retainer * Forward Snap Ring * O-Ring 1.674 in. * Lip Seals (2) * Direct Housing Assembly * Direct Piston * Direct Piston Return Springs (26) * Direct Spring Retainer * Direct Snap Ring * O-Ring 2.737 in. * Sprag Shaft * Front Sprag Retainer Plate * Heavy-Duty Sprag 36 Element * Outer Sprag Race * Rear Sprag Retainer Plate * Sprag Retainer Screws (4) 6-32 x 5/16 in. * Quad Ring Seals (2) * Anti-rotation Seal Rings (2) * Drum * Pressure Plate * Outer Snap Rings (4) * Bearing Small * Forward Clutch Hub * Bearing Large * Direct Clutch Hub * Steel Clutch Plates (4) .060 in. * Steel Clutch Plates (11) .077 in. * Friction Clutch Plates (13) .080 in. * Clutch Separators (60) .103 in.
Not Yet Reviewed
$3,052.40
RideTech 1959-64 Chevy air suspension systems are designed specifically for the Chevy "B" Body cars. These kits provide an ultra-low show stance while maintaining excellent ride quality and handling. Choose the air suspension system recommended for your year/model. Some kits may vary depending on your application. RideTech 1959-64 Chevy air suspension system features and notes: * Upper StrongArms (powdercoated black and fully assembled with ball joints, bushing, and cross shafts; ready for installation) * Lower StrongArms (powdercoated black and fully assembled with ball joints, bushing, and cross shafts; ready for installation) * Front HQ Series Shockwaves utilize an impact forged aluminum body and monotube design to deliver excellent ride quality and handling (also allows fine-tuning of the ride quality and handling) * Front and rear MuscleBars help reduce body roll and create room for wider tires. PosiLink end links provide immediate engagement between the chassis and control arms. * Rear StrongArms provide added strength to help get the power to the pavement * Rear CoolRide and HQ Series shocks simply bolt in place of the stock springs. Important note: Control system is not included. To complete your air suspension system, a RideTech compressor system is recommended. * RideTech kit 11060298 upper arm and panhard bar utilize R-joint technology to provide smooth operation and reduce roll bind; must be used with stock spindles. Some cars have two rear upper control arms and will need an additional StrongArm. (1959-64 GM B-Body includes Impala, Bel Air, Biscayne, Brookwood, El Camino, Kingswood, Nomad, and Parkwood)
Not Yet Reviewed
$4,820.00
RAM Pro Street dual disc clutch kits are precision-balanced for smooth operation—and come equipped with a billet cover for optimum release length, a comfortable pedal effort, and a high diaphragm finger position for excellent high-RPM shifting capability. The sprung hub top disc absorbs shock and reduces driveline noise. Pro Street kits are available with your choice of an organic friction disc or a metallic disc. Organic disc models are capable of handling 500 to 800 hp; the metallic disc models can handle between 600 and 1,200 hp. RAM Pro Street dual disc clutch kits include a billet aluminum, SFI-certified flywheel with a steel insert that has sufficient mass to draw heat away from the clutch without distortion. Some kits are available with a steel flywheel. Order the clutch recommended for your vehicle and engine application.
( 1 )
$2,159.00
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$2,199.00
RideTech 1958 Chevrolet air suspension systems are specifically designed for the 1958 Chevy B-body cars (including the Impala, Del Ray, Bel Air, Biscayne, Brookwood, and Nomad). They include everything needed to provide a lowered stance with dramatically improved handling and ride quality. These kits contain front upper and lower StrongArms, front and rear MuscleBars, plus front and rear HQ Series coilovers. Enjoy the benefits of buying a complete system that takes all of the guesswork out of your suspension upgrade. Features, items, and specs: * Must be used with 1959-64 stock spindles and disc brakes * Black powdercoated upper StrongArms feature corrected ball joint angles, and are fully assembled with ball joints, bushing, and cross shafts * Upper ball joints moved back to allow for additional caster setting (improves high speed stability and steering feel) * Black powdercoated lower StrongArms feature a double sheer lower mount for increased strength, and are fully assembled with ball joints, bushing, and cross shafts * HQ Series shocks allow fine-tuning and deliver excellent ride quality and handling with a 1,000,0001-mile warranty (rebound knob located on top of shock for underhood access) * CoolTide system using Firestone air springs * Front MuscleBar helps reduce body roll and creates room for wider front tires (includes PosiLink endlinks that provide immediate engagement between chassis and control arms) * Rear MuscleBar * Rear StrongArms provide added strength to help get the power to the pavement (includes a tubular upper wishbone specific to the 1958 model year)
Not Yet Reviewed
$4,680.00
ACT Mod-Twin 10.5 Extreme Street clutch kits are designed for high-powered street machines. These clutch kits unite uncompromised pedal feel, durability, engagement quality with very high-torque capacity by combining twice the organic friction surfaces with an ultra-durable sprung mono-drive hub assembly in a completely modular design. Each diaphragm spring endures an exclusive four-stage heat treating process to provide a consistent light pedal feel. Steel-backed friction plates with high-quality organic friction materials deliver stable friction coefficient, good heat capacity and long clutch life. These friction plates uniformly transfer torque to the mono-drive sprung hub assembly, which extends input shaft life and reduces driveline shock from torsional vibration. The kits include a CNC-machined and dynamically balanced flywheel, pressure plate cover, diaphragm spring, face, puck-style ceramic friction plates, sprung mono-drive hub assembly, floater, alignment tool and pilot bearing (where applicable). In addition, Mod-Twin clutches by ACT are also fully rebuildable, and replacement discs may be ordered separately. Product features: * Recommended for Street or Street/Strip use * Soft, progressive engagement, light pedal effort, smooth shifting with OE to mild transmission gear noise * Forged aluminum cover, mono-drive hub, exclusive diaphragm, and premium friction materials ensure this long-life twin performs and survives under the most demanding conditions * Delivers maximum performance and high heat tolerance by combining robust design, strategic features, choice materials, and close tolerances * 100 percent clamp load tested, balanced, and SFI certified
Not Yet Reviewed
$2,003.00
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$2,266.00
Advanced Clutch Technology (ACT) Mod-Twin 225 Maxx Extreme twin-disc race clutch kits are available in two styles—Sprung Race and Rigid Race—for a variety of applications, including many Subaru and Mitsubishi models. Here are descriptions of each: * MOD-TWIN 225 XX SPRUNG RACE CLUTCH KIT: Performs aggressive launches and smoother shifting in high-powered AWDs by combining twice the ceramic friction surfaces with an ultra-durable mono-drive sprung hub assembly in a completely modular design. Each diaphragm spring endures an exclusive 4-stage heat treating process, providing a consistent pedal feel requiring moderate effort. Puck-style friction plates with high-quality ceramic friction materials deliver high friction coefficient, superior heat capacity, and long clutch life. These plates uniformly transfer torque to a mono-drive sprung hub assembly which extends input shaft life and reduces driveline shock from torsional vibration. This kit includes a CNC-machined and dynamically balanced flywheel, pressure plate cover, diaphragm spring, face, puck-style ceramic friction plates, sprung mono-drive hub assembly, floater, patented Monoloc Collar, release bearing, alignment tool and pilot bearing (if needed). -- Features and details: Predictable aggressive engagement, increased pedal effort, smooth shifting, possible start-off judder with OE to mild transmission gear noise; forged aluminum cover, mono-drive hub, exclusive diaphragm, premium friction materials, and hardened wear points ensure this long-life twin performs and survives under the most demanding conditions; delivers maximum performance and high heat tolerance by combining robust design, strategic features, choice materials, and close tolerances; Drag, Road or Rally Racing; Applying tactical engineering to the Mod-Twin, ACT presents unique solutions to common tradeoffs found on twin disc clutches, resulting in an ultra-durable, customer serviceable, long-lasting clutch with very high torque capacity. All are 100 percent clamp load tested, balanced and SFI certified. * MOD-TWIN 225 XX RIGID RACE CLUTCH KIT: Tackles aggressive launches and rapid shifting of high powered AWDs by combining twice the ceramic friction surfaces with a no-nonsense solid mono-drive hub in a completely modular design. Each diaphragm spring endures an exclusive 4-stage heat treating process, providing a consistent pedal feel requiring moderate effort. Puck-style friction plates with high-quality ceramic friction materials deliver high friction coefficient, superior heat capacity, and long clutch life. These plates uniformly transfer torque to a mono-drive chromoly steel hub which is heat treated for strength and durability, extending input shaft life with one continuous spline. The lightweight, rigid design allows for quicker shifts and trouble-free service. This kit includes a CNC-machined and dynamically balanced flywheel, pressure plate cover, diaphragm spring, face, puck-style ceramic friction plates, rigid mono-drive hub, floater, patented Monoloc Collar. -- Features and details: Predictable aggressive engagement, increased pedal effort, quick shifting, possible start-off judder with mild to moderate transmission gear noise; forged aluminum cover, mono-drive hub, exclusive diaphragm, premium friction materials, and hardened wear points ensure this long-life twin performs and survives under the most demanding conditions; delivers maximum performance and high heat tolerance by combining robust design, strategic features, choice materials, and close tolerances; Drag, Road or Rally Racing; Applying tactical engineering to the Mod-Twin, ACT presents unique solutions to common tradeoffs found on twin disc clutches, resulting in an ultra-durable, customer serviceable, long-lasting clutch with very high torque capacity. All are 100 percent clamp load tested, balanced and SFI certified.
Not Yet Reviewed
$2,004.00
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$2,108.00
Zumbrota Drivetrain remanufactured axle assembles offer reliable performance at a value price. They're available for thousands of applications—from passenger and off-road vehicles, to race cars and pulling trucks. The axle tubes are straightened to OE specifications; the housings are hydro-blasted and rinsed, then tested for surface wear and cracks; and the gear patterns and rolling torque are properly adjusted to ensure optimum tooth contact. Zumbrota replaces all seals, bearings, crush sleeves, pinion nuts, and shims on the front and/or rear axle assemblies. Order the replacement model recommended for your specific vehicle.
( 9 )
$2,088.99
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$3,574.99
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