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FTI Performance TH400 direct drum HP spring kits are heavy-duty, high performance springs—a must for high-rpm applications. Servicing or rebuilding your TH400 automatic transmission can be a big job. Make it easier by choosing quality parts you can count on to fit and perform—FTI Performance direct drum spring kits.
Not Yet Reviewed
$29.99
$26.99
TCI's pressure regulator springs are a high-rate style that will permit pressures up to 250 psi, depending on boost valve selection. They're perfect for competition transmissions.
( 2 )
$20.95
RESTOPARTS® Manufactured clutch return springs are offered individually or in sets. The sets include the large clutch return spring that goes from the Z-bar to the frame bracket, and the smaller anti-rattle spring that goes from the Z-bar to the clutch fork (on some applications) to keep the components from making noise. These replacements are available in different configurations for a variety of 1960s and '70s era GM vehicles. Order the springs recommended for your application.
( 1 )
$44.99
On Sale
FTI Performance offers a wide range of replacement parts for racing transmissions—from high gear drums and servo covers, to reverse piston drums, shifter detents, and more. These Powerglide reverse instant action spring kits quicken the piston release during trans-brake use.
Not Yet Reviewed
$27.99
$25.19
These TransGo 3-4 and forward clutch spring kits are a necessity for use over 5400 RPM. They function by preventing centrifugal apply and also allow easier downshifts. Best of all, they will function with original or additional amounts of clutches.
( 3 )
$35.76
Sonnax enhanced performance accumulator springs provide firmer 1-2 shifts for enthusiasts who appreciate quick, positive shift feel in their GM units. The design of these springs provides a performance shift feel, without reducing accumulator piston travel. This allows for a firmer—but still cushioned—shift that minimizes shock to the band and shafts. These springs also may be used as a replacement for THM 350 direct accumulator piston springs. Hit the road enjoying the perfect shift feel with Sonnax enhanced performance accumulator springs.
( 2 )
$25.91
These springs from TCI are a complete set of 16 direct piston release springs to quicken the release during trans-brake use. You can count on TCI to keep your valve body and trans-brake working flawlessly.
( 2 )
$47.95
Worn or weakened OE accumulator springs may cause delayed or sluggish shifts between 1st and 2nd gears. Installing Sonnax heavy-duty 1-2 accumulator spring kits restore shift feel, even in demanding towing applications. These stronger-than-OE springs improve overall performance, reliability, and longevity of your automatic transmission. Each kit includes an inboard (green) and outboard (yellow) spring.
Not Yet Reviewed
$21.81
TransGo Performance offers direct clutch springs for a variety of automatic transmissions, including more than a dozen Mopar models. Certain Dodge, Ram, and Jeep vehicles fitted with small or big case transmissions often come in with faded overdrive direct clutch springs, as well as burnt overdrive direct clutch plates. This spring is used to apply the overdrive direct clutch. Once it fades, clamping force is reduced, directly compromising the holding ability of the overdrive direct clutch. This leads to complaints of slipping or no reverse, reduced or no coast braking in manual 2nd or 1st gear, as well as burned up overdrive direct clutch plates. The TransGo overdrive direct clutch high-temp springs are an improved design that resists spring fade. These top-quality OEM replacement springs help prevent slippage as well as direct clutch plate failure. * Corrects/Prevents/Reduces: -- Slip in reverse -- Burnt overdrive direct clutch plate -- Reduced or no coast braking in manual 2nd or 1st gear
Not Yet Reviewed
$30.86
EPI Performance secondary clutch springs are reliable and consistent performers for select UTV applications. Designed as replacements for continuously variable transmissions (CVT), the secondary spring force resists the push of your primary clutch lever and allows for more RPM.
Not Yet Reviewed
$35.99
When it comes to clutch springs, you need a reliable and consistent product. EPI Performance primary clutch springs are such a performer. EPI Performance has a large selection of clutch springs for you to choose from and they are manufactured with the highest quality materials available. With EPI Performance primary clutch springs, you can fine-tune your engagement and top rpm the way you like. It's time to upgrade to EPI Performance primary clutch springs.
Not Yet Reviewed
$35.99
High pressure needs high-rate springs, and TCI pressure regulator springs will make the psi that you need, depending on the boost valve selection. When you need replacement parts for your competition transmission, TCI will keep you in the race.
( 1 )
$23.95
Dorman U-bolt repair kits are designed to securely hold the leaf spring or leaf spring bundle to the underside of an axle of a vehicle or trailer. The components in these leaf spring axle kits are engineered from quality materials to provide reliable performance and long service life. Be sure to check the leaf spring dimensions and other relevant application details to select the correct type and size U-bolt repair kit for your application needs.
( 3 )
$22.99
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$30.99
Nic Woods Racing Shockwave clutch springs are available in rear driven or primary styles to find just the right combination you are wanting for your clutch setup. They are also offered in different sets with a primary and a rear driven spring together. Choose the springs you prefer.
( 1 )
$21.65
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$48.10
Replace your worn-out clutch spring with JR Race Car driven clutch springs. They are available in various models and colors to fit most applications. Keep your clutch in peak performance and ready for the next race, with a new clutch springs.
( 1 )
$20.50
Don't chance not making it the next round due to a broken spring. Always carry a spare or two of JR Race Car Shockwave Overdrive clutch springs. They are primary springs designed for JR Race Car Shockwave Overdrive units. They're made from the finest materials available and come in a choice of colors.
Not Yet Reviewed
$41.38
Fishbone Offroad leaf spring shims are a vital addition for trail riders and rock crawlers, as they play a crucial role in improving your driveline angle. This enhancement not only helps preserve the health of your U-joints but also results in a smoother, more enjoyable drive on challenging terrains. Crafted from durable black powdercoated steel, these pinion angle shims ensure longevity. Installation is a breeze, making it easy for any off-road enthusiast to bolster their suspension system, prolong U-joint life, and reduce strain on driveline components. Invest in Fishbone Offroad's leaf spring shims to ensure your vehicle's peak performance and elevate your off-road experiences with confidence. Order the shims for your application.
( 7 )
$29.99
Hybrid Racing heavy-duty transmission detent springs offer an increase in the preload and stiffer spring rate over the factory parts which aids the transmission gear selector fork. Upgrading these springs will make your gear engagements a bit sharper since they replace the soft OEM ones. Factory springs also have a service limit, meaning they should be changed when they no longer meet the requirements. Whether upgrading or servicing your current worn out springs, you will feel an immediate change for the better once installed. Add new life to your gear changes with Hybrid Racing heavy-duty Honda® transmission detent springs. Select the set designed for your car. Features: * Stiffer spring rate compared to stock * Stronger springs offer direct gear engagement * Zinc Chromate plated for durability (black or yellow) * Suitable for all cars (street and race)
( 1 )
$32.29
On Sale
New EBC CSK clutch springs prevent damage from prolonged exposure to heat and wear. They are OEM upgrades and are 10 percent stiffer than stock. The lever will be slightly stiffer which can wear your hand out riding in heavy traffic, but in return the clutch engages smoother and faster with the stiffer springs making takeoff smooth and shifting faster and less effort to speed shift.
( 3 )
$29.63
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$59.28
$26.67
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$53.35
Wiseco clutch spring kits are manufactured from premium steel and then shot-peened and heat-treated. These replacement springs are stiffer to ensure a positive clutch lockup every time. Keep your clutch from slipping with Wiseco clutch spring kits.
Not Yet Reviewed
$21.99
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$35.99
ProX heavy-duty clutch spring kits feature an approximately 10 percent stiffer design than OEM springs and will reduce clutch slippage under extreme conditions for maximum control and instant drive. They help ensure a positive clutch lockup, while also providing a high-performance feel and durability. Find out for yourself why Pro-X Racing Parts clutch spring kits are a top replacement option, especially for professional drivers, when you order the kit designed to fit your application. Other features, items, and specifications include: * Made from the toughest materials available * Pre-set, shot-peened, heat-treated, and designed to exceed OEM performance and durability * Sold in complete kits for each application * Full range of spring kits for MX and ATV models available from ready stock
Not Yet Reviewed
$22.99
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$32.99
BBR Motorsports clutch springs are heavy-duty for high performance! These BBR springs are custom-wound from chrome-silicon wire and preset for longer life. They offer higher spring seat pressure to resist clutch slippage in your high performance motor. Raise the performance quotient of your bike with heavy-duty clutch springs from BBR Motorsports.
Not Yet Reviewed
$41.95
These Richmond Gear manual transmission replacement keys and springs are available to help keep your manual transmission operating properly. They are built to fit inside of your Richmond Gear manual transmission and are available for 4 or 5-speed transmissions.
Not Yet Reviewed
$21.99
Sonnax hydraulic line pressure booster kits contain stronger pressure regulator springs and large ratio boost valves designed to work together, providing progressive pressure increases as driving conditions become more demanding. Their springs are approximately 10 percent stronger than OEM and more conservative in impact than other aftermarket kit springs. Large ratio boost valves provide higher pressure incrementally and when it's needed the most. The combination of these springs and valves in the Sonnax hydraulic line pressure booster kits gives you the best of both worlds--a modest pressure increase at the low-end, with a high-end pressure that's equal to or greater than that of other aftermarket kit springs.
( 20 )
$31.34
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$43.23
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