TRANSMISSION & DRIVETRAIN 252 WARNING: For Proposition 65 information, see p. 183 Some parts are not legal for sale or use in California or other states with similar laws/regulations—see p. 183 for details. Summit Racing™ Trac-Loc Differentials Upgrade from your stock Ford 9" differential to a super-strong, all-new Summit Trac-Loc differential. Constructed of heavy-duty steel with extra support material in crucial areas, these 4-pin clutch-type limited slip differentials are burly enough to handle weekends full of burnouts and launches, while staying well-mannered around your neighborhood. NOTE: Longer ring gear bolts required. SUM-CTF9TRACL28 28-spline .........................................................each $379.99 SUM-CTF9TRACL31 31-spline .........................................................each $379.99 ARB Air Locker Differentials Get 100% traction on demand to confi dently crawl through rough, sloppy terrain. These Air Locker differentials from ARB perform like an open differential until you activate the pneumatic mechanism that locks the axles together. They’re constructed with forged gears and a one-piece nodular iron carrier, and include a solenoid valve, air line, bulkhead fi ttings, switch, and a manufacturer’s 5-year/unlimited mile warranty. 12V air compressor required (sold separately below). Find your application at SummitRacing.com, or call us. Air Locker differentials, each* .............from $1,299.95 12V Air Compressors These ARB compressors can operate two Air Lockers, plus infl ate tires up to 37". They can be mounted permanently in any orientation, and feature splash-resistant air fi lters with 4-micron washable sintered bronze elements, sound- deadening anti-vibration mounts, and ball bearing motors with linear brush preload systems for smooth, quiet operation. Wiring loom, plug-in contacts for locker solenoid, mounting hardware, and isolating switch included. The dual compressor is fan-cooled for a 100% duty cycle, and can operate air tools (up to 90 psi continuous). ARB-CKMA12 Single compressor (2.34 cfm @ 29 psi) .................each $359.95 ARB-CKMTA12 Dual compressor (4.68 cfm @ 29 psi) ....................each $659.95 *An oversize fee may apply. Details at SummitRacing.com. Summit Racing™ Mini Spools Machined on state-of-the-art CNC equipment, these mini spools are made from 1045 chromoly steel. For dirt track use only. Price Each SUM-730075 GM 10-bolt, 7.5" .............................$99.99 SUM-730085 GM 10-bolt, 8.5" ...........................$104.99 SUM-730120 GM 12-bolt, car ..............................$89.99 Strange Engineering Lightweight Pro Race Spools Strange Engineering Lightweight Pro Race spools maximize traction by permanently locking your rear axle shafts together, ensuring that your wheels always turn at the same speed. The simple design and tough forged steel construction yield greater reliability than a locker or limited slip differential, and each one is cross-drilled to reduce rotating mass. Available for most GM and Ford vehicles. Not intended for street use. Call us or visit SummitRacing.com to get yours. Made in the USA. Lightweight Pro Race Spools, each ....................................................... from $224.99 ARB-CKMTA12 GM Price Each PWT-1930-LR 7.5", 26-spline .... $643.99 PWT-1931-LR 7.625", 28-spline;$508.99 PWT-1940-LR 8.2", 28-spline .... $501.99 PWT-1920-LR 8.5", 28-spline .... $476.99 PWT-1921-LR 8.5", 30-spline .... $485.99 PWT-1955-LR 10.5", 30-spline; $461.99 PWT-1910-LR 12-bolt, 30-spline;$486.99 Ford Price Each PWT-1822-LR 8.8", 31-spline .... $438.99 PWT-1810-LR 9", 28/31-spline; $449.99 PWT-1840-LR 10.25", 35-spline; $449.99 Dana 30 PWT-2210-LR 27-spline ............ $325.99 Dana 44 PWT-2410-LR 30-spline ............ $286.99 Powertrax Lock-Right Locking Differentials Lock-Right full lockers are tough locking differentials that are easy to install without special tools or equipment. Operation is fully automatic—engine power is directed to the wheels with the most traction, even if one wheel is off the ground in some extreme maneuver. Lock-Right keeps the axles locked for straight-line travel, then allows the gears to overrun each other when the wheels need to differentiate through a turn. Available in sizes to fi t virtually any application—ideal for vehicles used primarily under severe driving conditions. Yukon Gear & Axle Grizzly Locker® Your performance engine is only as strong as your differential—so step up to a tough-as-nails Yukon Grizzly Locker! Each mechanical positive-locking differential has a rugged 8620 triple alloy steel case, hand-fi tted forged internals, and large radius teeth for greater strength over back-cut counterparts. It all adds up to fast engagement and maximum traction during demanding operating conditions. Grizzly Lockers also provide 100% power to both tires while allowing disengagement during turns. Backed by a manufacturer’s 1-year warranty. Price Each YGA-28015+ GM 14-bolt, 10.5", 30-spline ..............................................$472.00 YGA-28013 GM/Chrysler 11.5", 30-spline ...........................................$1,048.00 YGA-28009* Ford 9", 31-spline ...............................................................$899.99 YGA-28026 Ford 10.25"/10.5", 35-spline ............................................$1,148.99 YGA-28001 Dana 44, 30-spline, 3.92-up ratio .......................................$719.99 YGA-28003 Dana 60, 35-spline, 4.10-below ratio ..............................$1,090.99 YGA-28005 Dana 60, 35-spline, 4.56-up ratio .......................................$727.00 YGA-28020 Toyota 8", 30-spline, 6-cylinder ..........................................$976.99 *Approved for competition in NASCAR® National & Touring series. +Installs into standard open carrier. Yukon Gear & Axle Dura Grip Differentials Make sure your power gets planted properly with a Dura Grip positraction differential from Yukon Gear & Axle. Positraction carriers give you the performance and confi dence you need to dominate the trail, street, or strip. The nodular iron cases are stuffed with heavy-duty 4320 chromoly spider gears and a four-spring Raybestos® composite clutch for longevity and reduced chatter. They’re completely rebuildable for easy repairs, modifi cations, or upgrades without having to buy a new unit. Price Each YGA-26017 GM 10-bolt, 7.5"/7.6", 26-spline, 3.23-up ratio ...................$545.99 YGA-26018 GM 10-bolt, 7.5"/7.6", 28-spline, 3.23-up ratio ...................$601.99 YGA-26021 GM 10-bolt, 8.2", 28-spline, 3.08-up ratio ..........................$427.00 YGA-26015 GM 10-bolt, 8.5", 28-spline ................................................$358.00 YGA-26016 GM 10-bolt, 8.5"/8.6", 30-spline .........................................$394.00 YGA-26011 GM 12-bolt, car, 8.75", 30-spline, 3.08-3.90 ratio ..............$557.99 YGA-26002* Ford 8", 28-spline ...............................................................$619.99 YGA-26005+ Ford 8.8", 28-spline ............................................................$427.00 YGA-26006+ Ford 8.8", 31-spline ............................................................$427.00 YGA-26019 Chrysler 9.25", 31-spline ....................................................$411.00 YGA-26024 Pontiac/Oldsmobile/Buick 8.2", 28-spline, for 3/8" bolts ....$427.00 *Requires a carrier bearing with a 1.781" inside diameter. +Excludes Super 8.8" NEW NEW! Powertrax® Grip PRO Traction Systems Powertrax Grip PRO Traction Systems combine smooth operation with unmatched strength and durability! Featuring a forged steel case and 3 x 2 spiral gear technology, these limited-slip differentials turn out progressive and variable traction that’s based off throttle input. That means you’re always in control of just how much traction is applied, and that’s great for situations where finesse is as important as extreme traction. Price Each PWT-GT247528 GM 10-bolt, 7.5"/7.625", 28-spline, 3.23-up ratio ............ $858.99 PWT-GT201030 GM 10-bolt, 8.5"/8.6", 30-spline, 2.73-up ratio ................ $806.99 PWT-GT501536 Toyota 10.5", rear, 36-spline ............................................. $997.99 Powertrax® Grip LS Traction Systems High-performance traction and street-friendly control meet in the Grip LS Traction System from Powertrax! These spring-preloaded clutch-type limited-slip differentials feature carbon fi ber and steel friction plates for consistent, streetable traction, all housed within a super-strong forged steel case. Each unit is also fully rebuildable for years of trouble-free operation. Price Each PWT-LS201028+ GM 10-bolt, 8.5"/8.6", 28-spline, 2.73-up ratio ................ $782.99 PWT-LS241230 GM 12-bolt, car, 8.875", 30-spline, 4.10-up ratio ............. $951.99 PWT-LS108028* Ford 8", 28-spline ............................................................. $806.99 PWT-LS109031^ Ford 9", 31-spline ............................................................. $736.99 *Requires bearing TMK-LM102949 and race TMK-LM102910. ^2.89" caps require bearing TMK-LM102949 and race TMK-LM102910. 3.06" caps require bearing TMK-LM603049 and race TMK-LM603011. +Must use special large carrier bearings with 1.781" I.D. and 2.891" O.D. race.
