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The ideal upgrade for performance vehicles with the GM 6L80 or 6L90 transmission, Sonnax extreme-duty 4-5-6 clutch hub and intermediate shaft guarantees maximum protection against shaft breakage. The unique hub design improves oil flow and accepts Powerglide-style frictions to optimize clutch durability. In place of the 2-piece shaft/hub, Sonnax uses a much stronger, one-piece design that eliminates the OE assembly's weak, welded connection. It is custom forged from ultra-high-strength 300M billet steel, and then heat-treated and shot-peened for added durability. This combination of features guards against broken 4-5-6 hubs and the risk of rear splines shearing off.
Not Yet Reviewed
$1,015.08
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$1,157.55
Summit Bucks
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
Summit Bucks
Real Deal Steel inner fenders are excellent reproductions of the originals to restore your classic. These steel replicas have all holes deleted to fit your custom applications and are EDP coated. They are available for right and left sides. Complete your vehicle project with Real Deal Steel inner fenders.
( 3 )
$1,199.99
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$1,456.99
Summit Bucks
Failure of the intermediate stub shaft and direct drum are almost inevitable when transmissions are pushed to the limit. To maximize durability and improve clutch capacity in heavy-duty/performance vehicles, Sonnax offers Smart-Tech direct clutch drum and shaft kits, the first upgrade to eliminate every critical weakness. Most failures in these units occur where the direct drum and stub shaft connect. Even other aftermarket upgrades that rely on a heavy-duty shaft will sheer in this area under extreme conditions. Unlike two-piece assemblies, the all-in-one Smart-Tech easily handles the highest horsepower/torque levels. The unique one-piece clutch drum with integrated stub shaft is precision machined from high-strength steel to guarantee there are no splines to strip from the drum or weaken the shaft. The shaft itself is significantly thicker and 2 times stronger than the original. Due to its larger diameter, the integrated shaft must be used with the kit's custom, heavy-duty sun gear. Insufficient holding power is another area where many transmissions fall short, but installing thinner aftermarket steels and backing plates to increase clutch capacity isn't ideal. Those components increase clutch pack flex and heat build-up, making them the primary cause of repeat burn-up. To improve both performance and long-term reliability, the Smart-Tech's custom drum and piston hold an OE backing plate and seven OE frictions for 17 percent more clutch capacity than the six-friction stack-up. Sonnax Smart-Tech direct clutch drum and shaft kits feature: * One-piece design that eliminates weak point where drum splines strip and shafts break * Rugged shaft is 50 percent thicker and twice as strong as OE * Custom drum and piston deliver 17 percent more clutch capacity with optimum protection against burn-up * High-strength drum and shaft are precision-machined from hardened 8620 steel * Unique sun gear is precision-machined from 9310, heat-treated steel
( 1 )
$1,537.27
Summit Bucks
Mustang Motorcycle Products' Touring seats are custom-molded from the best controlled density foam for comfort. They are resilient enough to stand up to the long journey, mile after mile, in great style. The wide front bucket seat and wide rear seat are available plain or with studs, and the base plate is open in the middle to accept a Mustang or stock Harley® driver backrest kit (sold separately). These seats will fit with a handrail. No excuses--replace your bike's worn-out seat.
Not Yet Reviewed
$1,020.00
Summit Bucks
If you're gonna ride a Harley® in cold weather, you might as well saddle up in comfort. Mustang Motorcycle heated Super Touring seats offer you and a passenger the fullest cushion possible—with warmth! The one-piece units are available with or without a backrest. For roominess, the front buckets are 19 in. wide and sit back 1 3/4 in. further than stock seats; while the rear seats measure 14 in. wide. These heated vinyl seats include a wiring harness that that hooks to the accessory port in front of your battery. Control switches on the side of the seats allow dual high/low settings for the driver and passenger. Match your bike to the model designed for precise fitment. (Some covers feature decorative studs.)
Not Yet Reviewed
$1,130.00
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$1,390.00
Summit Bucks
Mustang Motorcycle Products Super Touring heated extended reach seats offer a one-piece comfortable touring design that provides both driver and passenger with the fullest, most comfortable seat possible. These seats sit the driver back 1.75 in. more than the stock seat with a 19 in. wide front bucket and a 14 in. wide rear seat for all-day riding comfort. The seats also have the receiver for an optional, fully adjustable, and easily removeable driver backrest built in. Mustang Motorcycle Products Super Touring heated extended reach seats are available plain or with studs.
( 1 )
$1,365.00
Summit Bucks
Cruise in comfort year-round with Mustang Motorcycle heated Touring seats. These one-piece units offer a wide 17 in. bucket for the rider and a 14 in. wide cushion for the passenger. The comfortable seats are built on a rugged, triple-layer fiberglass baseplate, and the black vinyl covers are available plain or with chrome studs. Included with each heated seat is a wiring harness that hooks up to your accessory port in front of the battery; both riders have high/low settings to control the warmth. Order the Touring seat designed for fitment on your particular model. Additional notes: * For Honda® GL1800 models, the driver seat is 18 in. wide, and the passenger bucket-shaped seat is 18.5 in. wide. * For most Harley-Davidson® models, the baseplate will accept a Mustang or stock Harley® driver backrest kit.
Not Yet Reviewed
$1,080.00
Summit Bucks
Yoshimura Signature Series RS-4 exhaust systems feature a pentagonal-shaped muffler sleeve and aluminum mounting bracket. They are a two-stage stepped baffle design with considerable weight reduction over your stock exhaust system. Every RS-4 exhaust system comes with all the necessary hardware included for an easy installation. Options include material and finish—and single or dual configuration. Order the model recommended for your bike application.
Not Yet Reviewed
$1,309.00
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