AXLES and COMPONENTS 252 Some parts are not legal for sale or use in California or other states with similar laws/regulations—see p. 189 for details. WARNING: For Proposition 65 information, see p. 189 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 $419.99 SUM-CTF9TRACL31 31-spline.............................................................each $419.99 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 $1,091.00 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 $338.00 ARB-CKMTA12 Dual compressor (4.68 cfm @ 29 psi) .........................each $616.00 Spicer Differential Carriers Engineered and manufactured to precise OE standards, a Spicer differential carrier will keep your ring and pinion operating smoothly. Each carrier is heat treated and shot peened for strength. Carriers available as open differential-type (loaded or unloaded) or as clutch-type—fi nd your application at SummitRacing.com, or call us. Open differential carriers, unloaded, each.............from $113.99 Open differential carriers, loaded, each.................from $309.99 Clutch-type differential carriers, each ...................from $438.99 Eaton Performance Differentials Eaton differentials feature precision-forged gears for smooth, quiet performance and great traction, even under high torque loads. They’re housed in high-strength steel cases and come with a manufacturer’s 1-year limited warranty. Quality petroleum-based oil is recommended for installation. More applications available—call us or visit SummitRacing.com. Posi Performance Differentials Posi Performance limited-slip differentials have carbon disc clutch packs that smoothly increase grip as torque input increases. The result is unbeatable traction with seamless activation and chatter-free performance. Add friction modifi ers to gear oil for optimum performance. Price Each ETN-19663-010 GM 10 bolt, 7.5", 26-spline, 3.23-up ratio ......................... $635.99 ETN-19599-010 GM 10-bolt, 7.5"/7.6", 28-spline, 3.23-up ratio .................. $699.99 ETN-19686-010+ GM 10-bolt 55P, 8.2", 28-spline, 3.90-below ratio ............. $722.99 ETN-19603-010 Chevy 10-bolt, 8.2", 28 spline, 3.08-up ratio...................... $699.99 ETN-19674-010 Pontiac/Olds/Buick 10-bolt, 8.2", 28-spline, 3.36-up ratio; $799.99 ETN-19670-010 Chevy Corvette, 1963-79, 8.5", 17-spline, 3.08-3.90 ratio; $826.99 ETN-19557-010* GM 10-bolt, 8.5", 28-spline, 2.76-up ratio ......................... $699.99 ETN-19559-010* GM 10-bolt, 8.5"/8.6", 30-spline, 2.73-up ratio .................. $699.99 ETN-19554-010 GM 12-bolt, car, 8.875", 30-spline, 3.07-3.73 ratio ............ $699.99 ETN-19555-010 GM 12-bolt, car, 8.875", 30-spline, 4.10-up ratio ............... $747.99 ETN-19587-010 GM 12-bolt, truck, 8.875", 30-spline, 2.76-3.42 ratio ........ $588.99 ETN-19556-010 GM 12-bolt, truck, 8.875", 30-spline, 3.73-up ratio ........... $716.99 ETN-19689-010 GM 14-bolt, 10.5", 30-spline, 4.11-below ratio .................. $849.99 ETN-19588-010 Ford 8.8", 31-spline (excludes Super 8.8") ......................... $699.99 ELocker Differentials Switch from easy driving around town to sure-footed off-road traction at the push of a button! Eaton’s ELocker differentials engage and disengage electrically, so you get all the advantages of a fully locked diff on the trail, without any of the drawbacks when you return to the pavement. Include switch and relay. Price Each ETN-19977-010 Dana 44, 30-spline, 3.73-down ratio ............................$1,374.99 ETN-19969-010 Dana 44, 30-spline, 3.92-up ratio .................................$1,349.99 *Axles with small bearing bores (2.89" race O.D.), usually found on vehicles prior to 1999, require bearing LM102949 and race LM102911. Axles with large bearing bores (3.06" race O.D.), usually found on vehicles from 1999 to present, require bearing LM603049 and race LM603012. +Factory open differentials require housing modifi cation for installation. Nitro Gear and Axle Ring and Pinion Sets Each set is CNC-machined from 8620 forged steel, heat treated for durability, and triple- lapped for easy setup, ideal contact pattern, and low noise. Front and Rear Gear Package Sets If you’re planning on mounting big tires, towing, or heading off-road, Nitro Gear and Axle’s front and rear gear package sets are the simple solution for re-gearing your rig! Kits include top-quality pinion and carrier bearings, shims, crush sleeves, seals, gaskets, hardware, and more— everything you need for installation. They’re available in ratios from 3.42:1 to 5.29:1 for a variety of domestic and import trucks and SUVs. For application information and kit contents, visit SummitRacing.com or call. Front and rear gear package sets, kit* ........from $677.00 Ring and Pinion Gear Sets Looking for a ring and pinion set for your car, truck, or SUV? Nitro Gear has hundreds to choose from in a wide range of ratios. Ring and pinion gear sets, each..................from $191.00 *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" ......................................$97.99 SUM-730085 GM 10-bolt, 8.5" ....................................$101.99 SUM-730120 GM 12-bolt, car ........................................$86.99 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, the limited-slip differentials turn out progressive and variable traction that’s based off of 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. Call us or visit SummitRacing.com for your application. Grip PRO Traction Systems, each ...........from $589.99 NEW NEW! 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—call us or visit SummitRacing.com to get yours. Grip LS Traction Systems, each ..............................................................from $616.99 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 $197.99 ARB-CKMTA12
