
ZDS Driveshafts
USA Standard OE Replacement Driveshafts Get back on the road with a high quality Perfect Fit OE replacement driveshaft from USA Standard. USA Driveshafts: The OE Replacement Gold Standard USA Standard OE Replacement Driveshafts are perfect fit driveshafts: engineered to perfectly fit your vehicle. USA standard Driveshafts come in many application designs including yoke-style, slip-yoke, flange-style, and Rezeppa style. Designed to meet or exceed OE standards and eliminate OE design failure. Engineered with more serviceable parts than OE, USA Standard driveshafts lubricate better and reduce common breakage points, keeping your vehicle moving forward for years to come. With the industry’s best trained staff and technical support, in-house engineering, design, and quality control teams, two in-house quality assurance labs, a service shop for “real-world” application testing, and strategically positioned national distribution centers, USA Standard is your go-to driveshaft brand. USA Standard sets the bar for OE replacement drivetrain parts. USA Standard Unboxing - OE Replacement Driveshaft Shop Now A Full Range of Drivetrain Parts USA Standard Gear® combines quality engineering with affordability in a full range of drivetrain parts and components designed to get you back on the road with confidence. • Ring & Pinions • Transfer case component parts • Front & Rear Axles • Transfer case bearing and seal kits • Bearing Installation Kits • M/T transmission component Parts • Spartan Locker® • M/T transmission bearing & seal kits • OE Replacement Driveshafts • Offering over 9,000 drivetrain parts RANDYS Worldwide is the one-stop-shop for all of your Drivetrain needs. Randys offers next day shipping, quality, affordable, and performance Drivetrain parts. Shop thousands of parts available at RANDYSWorldWide.com Find the largest inventory of drivetrain parts in-stock, ready to ship Same day shipping from 7 strategically located nationwide distribution centers Industries best trained staff and technical support Call the Tech Line at 1-866-262-3514 Yukon Gear & Axle® manufactures the highest quality aftermarket differential products available. Offering the widest selection of differential parts, Yukon products are engineered and manufactured to exceed OEM specs. Yukon Gear & Axle® supplies a full line of: • Ring & Pinions • Locking Hubs • Front & Rear Axles • Differential Covers • Bearing & Installation Kits • Tools • Lockers; Mechanical & Air-Operated • Spools • Positraction • Super Joints • Spin Free Kits • Performance Driveshafts Zumbrota Drivetrain® has completely rewritten the book on remanufactured manual transmission and transfer case assemblies. Experience, pride, & expert craftsmanship go into every unit resulting in an industry-leading product line. Zumbrota Drivetrain® offers: • Transfer Case Units • Manual Transmission Units • Front & Rear Axle Assemblies • Ships Nation Wide The Diff Wizard® is the industry’s most accurate differential parts finder making your Year/Make/Model search precise and effortless. • 24 Different vehicle makes • 89 Product categories • Hundreds of vehicle models • 33 Product manufacturers • From 1948 to present day • Over 130 differential types • Over 5,500 part numbers Find your Driveshaft Yukon Performance Driveshaft for Jeep Wrangler JL OE Replacement JL Driveshafts: Yukon OE Replacement Driveshafts are made with high strength, serviceable 1310 U-Joints, unlike a stock model CV head. The system is designed to work for stock height to 2.5” lift and 33" tires. Yukon Driveshafts include replacement transfer case yokes. Heavy Duty 1310 JL Driveshafts: Upgrade the driveshaft with heavy duty 1350 Universal Joints! Added strength in the Driveshaft allows for a 4.5" suspension lift and 35" tires. Yukon Driveshafts included a transfer case Yoke, 1310 u-bolts, 1310, u-joints, 2"x.120" tubing and grade 8 hardware. Heavy Duty 1350 JL Driveshafts: Yukon's top of the line, toughest you can get, heavy duty 1350 Universal Joints get the most out of your ride. Yukon high strength 1350 Driveshafts allow for a 4.5" suspension lift and up to 37" tires. Yukon Driveshafts include a new transfer case yoke for the OE flange. Custom Super Heavy Duty 1410 Driveshafts: Yukon's custom 1410 Super Heavy Duty Driveshafts offer fully splined 1.5" stub, solid 1410 u-joints, and beefy 2.125"x.188 tubing. Each driveshaft is custom built to your vehicle specifications. Call one of our drivetrain experts to order yours today. How to Install a Yukon Driveshaft - Jeep JK Shop Now

Yukon Advantage
THE YUKON ADVANTAGE Yukon Gear & Axle is renowned for offering the highest quality aftermarket differential and drivetrain parts. Using precision engineering, high strength performance steels, and tolerances that meet or exceed OE grade, Yukon manufactures the widest selection including ring & pinions, limited slips, lockers, axles, rebuild kits, hubs, driveshafts, and more! Builders, performance shops and enthusiasts that demand quality parts for installation, racing and performance modifications use Yukon parts. QUALITY Step up to the quality of Yukon Gear & Axle. Engineered in our Everett, Washington headquarters, Yukon uses state-of-the art design, manufacturing, and testing processes, backed by 2 in-house quality labs to ensure every item meets exact specifications & quality standards. WIDE SELECTION With over 4000 part numbers, our parts span everything from diesel trucks, high performance, rock crawlers, circle track, street racing and general performance to name a few. Our parts are developed for most all domestic and select Import vehicles with a differential. HIGH FILL RATE + FAST SHIPPING Yukon Gear & Axle boasts an incredibly strong distribution network throughout the US with ties throughout the world. In addition, Yukon has seven fully stocked warehouses with 1-2 day shipping nationwide. 2 day shipping covers 95% of the USA. SERVICE Yukon Gear & Axle knows what it takes to keep our products on the streets. Great customers service, impeccable part quality and the technical knowledge to keep it all together. We far outreach the competition, supporting our customers to ensure that the parts they purchase are backed by with industry forward quality, warranties, and technical support. Spin Free Kits UNBOXING THE YUKON SPIN FREE KIT YUKON SPIN FREE KITS • Yukon’s top of the line Hub conversion kit uncouples your wheels from the front axle, letting it operate more efficiently, reducing drag for a smoother ride and boosting fuel economy • Replace your inaccessible, worn and vulnerable factory unit bearings with our complete Yukon Spin Free kit that comes with our toughest outer axles forged from 4340 Chromoly Steel, and forged hubs on most applications • Clean and sleek, this kit includes Yukon Hardcore Locking Hubs that let you engage into 4WD to play hard and easily disengage for the road back home Find Spin Free Kits Now Grizzly Lockers YUKON GRIZZLY LOCKER Providing maximum traction and strength for many performance applications, Grizzly Lockers are available for a variety of car & truck applications, with new applications being added all the time. Proudly assembled in the USA. YUKON GRIZZLY LOCKERS • Tear it up with our Grizzly Locker’s heat treated 8620 & 9310 Steel internals designed to dominate extreme torque and shock load • Large inner-clutch teeth are stronger than back-cut designs by 350%, allowing great resistance to shock load or broken axle failures • Premium alloy steel and nodular iron cases are designed for performance quality strength with minimal deflection Find Grizzly Lockers Now Front Axle Kits /p> YUKON AXLE KITS Yukon Front Axles provide next-level strength and toughness from 100% 4340 Steel that undergoes Yukon’s stringent proprietary heat treatment process and in-house torque testing. Yukon Front Axles have a tight tolerance yoke-end, which is the key to a properly fitted u-joint that won’t vibrate or loosen. Maximize bearing and seal life with Yukon Front Axle’s smooth and precise bearing journals, thanks to Yukon’s unique surface finishing treatment. Yukon Gear & Axle provides tested and true Front Axles for high performance. YUKON FRONT AXLE KITS • Next-level strength and toughness from 100% 4340 Steel that undergoes Yukon’s stringent proprietary heat treatment process and in-house torque testing • Tight tolerance yoke-end is the trick to a properly fitted u-joint that won’t vibrate or loosen • Smooth and precise bearing journals are the secret to maximizing bearing and seal life, thanks to Yukon’s unique surface finishing treatment Find Front Axle Kits Dura Grips YUKON DURA GRIP YUKON DURA GRIP • Versatile performance allows quick reaction to all traction situations • Ready to handle high torque and shock loads with the use of 4320 Steel Bevel Gears, which are up to 50% stronger than OE materials • The heavy springs used in the Dura Grip provide ideal traction under light load, while the precision bevel gears further compress the composite clutch packs under heavy loads for best lock up • Exceptionally heavy-duty nodular iron case will outperform OE iron cases by 20-30% Find Your Dura Grip Now p Zip Lockers YUKON ZIP LOCKER If you’re looking for the latest in on-demand traction, then the Zip Locker is for you. The Zip Locker is an air-operated locking differential designed with severe off-road use in mind. Its forged case & 4320 steel internals provide maximum strength against failure and give you peace of mind on the trail. Each unit comes with a variety of small parts for installation and operation, including air line & fittings, seal housing, shims (if applicable), operation switch with front & rear covers, zip ties and more. A variety of air sources can be used for operating the Zip Locker, including air compressors or onboard air systems. Yukon also offers an industry-first “competition series” Zip Locker that defaults to lock if the air pressure is interrupted for any reason. Competition series units are available for Dana 60 in 35 spline. YUKON ZIP LOCKERS - AIR OPERATED LOCKER • Yukon’s most impressive locker yet, forged from an entirely steel case to protect the internals with minimal deflection and maximum strength • Air operated intelligently designed locker, compact air compressor sold separately • Designed to handle extreme torque and shocks loads, heat treated 4320 & 9310 steel bevel gears and lock ring let you unleash power and stay locked until you disengage the locker • Bevel gears are optimized using our specialized design software to create a stress balanced tooth design that promotes superior strength and eliminates weak links Find Zip Lockers Now Ring & Pinion Gear Sets HOW TO IDENTIFY RING & PINION GEAR RATIO | DIFFERENTIAL TECH TIPS How to quickly identify the appropriate ring & pinion gear ratio for your truck or car. Music by Jason Shaw @ audionautix.com YUKON RING & PINIONS • Yukon Gears are held to rigorous quality and engineering standards with in-house QA Lab testing and Gleason CAGE design software • Re-gear this summer and get unmatched torque load capacity and low noise output thanks to our precisely controlled transverse contact ratio • Designed to ease installation through enhanced gear pattern length, width, and location Find Ring & Pinion Gear Sets Rear Axle Shafts HOW TO IDENTIFY YOUR DIFFERENTIAL & AXLE TYPE | DIFFERENTIAL TECH TIPS A collection of quick tips on how to identify some of the more common types of differentials, and an overview of the different styles of axles you may find underneath your vehicle. YUKON REAR AXLE SHAFTS • High-strength 1541H Steel lets us intensely heat treat our bearing journals for longer life and less wear on c-clip applications • Smooth and precise bearing journals are the secret to maximizing bearing and seal life, thanks to Yukon’s unique surface finishing treatment • Say goodbye to excessive endfloat with Yukon’s precision controlled c-clip buttons that provide proper fit every time Find Rear Axle Shafts Master Overhaul Kits YUKON MASTER OVERHAUL KITS • Most complete Master Overhaul Kits available in the industry • Premium grade fasteners and high quality Yukon Mighty Seals in most kits • Thoughtfully engineered shim stacks and super shims allow for precise adjustments • Technical expertise readily available to offer support throughout installation one call away Find Master Overhaul Kits Y.E.S. Plan Lifetime Warranty YUKON EXTENDED SERVICE (Y.E.S.) PLAN Get the Yukon Extended Service (Y.E.S.) Plan to Warranty to your Yukon products for life. The Y.E.S. plan offers low cost, no-questions-asked warranty coverage for as long as you own your vehicle on the following items: - 3rd Members - Front & Rear Axles - Zip Lockers - Performance Driveshafts - Grizzly Lockers - Dura Grips - Ring & Pinion Sets Get a YES Plan now

Things To Consider In Circle Track & Road Racing
COST The main thing to consider when building a rearend for any type of racing is strength and durability. After spending tens of thousands of dollars on the engine and transmission, why skimp on cheap rearend parts? OIL COOLERS Any rearend that transfers a lot of power will get hot. The only way to make the rearend live is to keep the oil from deteriorating and keeping it cool. The best way to keep the oil cool is to pump it through a cooler system that has adequate oil flow and air flow. This requires a pump, a system to turn the pump, oil lines, extra oil volume (and often an external sump), a good radiator, and ducting or placement for adequate air flow through the radiator. The difference in bearing and gear life with or without a good cooler system is amazing. SYNTHETIC OIL Some people do not like using synthetic oils. We have found that differentials without an oil cooler last far longer and have a much smaller chance of burning up the gear-set when synthetic oil is used. Crude oil is a lot cheaper, and works well if it does not get too hot, but synthetics work a lot better for rearends without a cooler. SAFETY WIRED BOLTS Safety wired bolts are not easy to work with. They take longer to assemble and the bolts are expensive to buy or drill. However, having a bolt back out costs a lot of time and money, especially if it costs points or a win. Ring gear bolts are the most important for safety wiring, but some insist on wiring the main cap bolts and pinion support bolts as well. LOCTITE Use red Loctite on all ring gear bolts, all pinion nuts, main cap bolts on severe duty use, and on pinion support bolts on severe duty use. Always clean the bolt and hole threads with a non-oily cleaner (brake-clean spray works well) before applying the Loctite. Put a drop or two on the end and it will work its way up the threads as the bolt is inserted. PINION BEARING PRELOAD SPACERS A crush sleeve works great for most street cars and production vehicles, but a race rearend should always use a solid spacer and shims. A spacer machined from billet steel is far superior to one cut from tubing. The best 9″ Ford spacers use two pieces cut from billet that enclose the shims completely and keep the bearings from wearing down the fragile shims. The pinion yoke should not be re-installed after removal when a crush sleeve is used. When using a solid spacer, the pinion yoke can be removed and installed over and over without affecting the bearing preload. HIGH QUALITY TIMKEN BEARINGS There are a few manufacturers other than Timken who make good bearings, but Timken has always been the most consistent and has always been the standard that others are judged by. It is also cheap insurance to install new bearings any time the old bearings show wear or heat damage. USE THE RIGHT TOOLS Tools set man apart from the rest of the animal kingdom. Using the right tools not only makes the job easier, it also ensures the rearend is assembled correctly and completely. A good, solid tool for turning the side adjusters is absolutely necessary. It takes about 150 ft lbs of torque to tighten a 9-inch Ford adjuster correctly. Any less will allow the ring gear to flex away from the pinion and the gear-set will not live as long. An accurate and easy-to-read dial indicator is necessary for properly measuring the backlash. An accurate inch/lbs torque wrench is needed to set the pinion bearing preload correctly. VITON HIGH TEMP PINION SEAL These pinion seals are best for racing. They are made from Viton® Fluoroelastomer, well known for its excellent (400°F/200°C) heat resistance. Their exceptional mechanical stability makes them ideal for severe operating conditions. MAINTENANCE OF A RACE REAREND The main thing a race rearend needs to live is good lubrication. Hot, dirty oil will end the life of a rearend faster than just about anything else. Cleanliness when assembling the rearend is essential to long life. Dirt, dust, metal filings, and any number of other foreign debris will affect the rearend life. A good rearend mechanic keeps their bench and work area free of any dirt or contaminants that can affect the rearend. This may seem obvious, but I see the issue of cleanliness missed more often than not. Bearings are more important to gear life than most mechanics realize. When it comes to the time and money to replace bearings, most people would choose not to go through the trouble. There are many things that can damage a bearing and lead to failure, even if the bearing doesn’t LOOK bad. Heat is probably the biggest killer of bearings in a racecar rearend. Scratches during assembly can lead to premature failure. Pinion bearing preload is VERY critical and either too much or too little can lead to bearing and/or gear failure. Whenever the pinion support is removed or the rearend is disassembled, the pinion bearing preload should be measured (with an accurate inch pounds wrench) and adjusted. Popular Resources: Limited Slips: Gov-Lock vs. Yukon Dura Grip Identifying Borg Warner Transfer Cases Limited Slips vs. Differential Lockers vs. Spools

Ford 9 Inch Differential Information
The Ford 9″ axle is a semi-floating, drop-out with a GAWR up to 3600 lbs and is one of the most popular axles in automotive history. Ford began production in 1957 and stopped production in 1986 though many after market companies still produce this rear end. FEATURES The Ford 9″ has a stamped housing with axletubes welded on each end and nothing else. This makes the rearend easier to service because of its removable centersection that houses the gearset. This removable gear case houses a differential unit that the ring gear bolts onto. What sets the Ford 9″ apart from other high performance and heavy duty solid axles is that access to the differential gears is not through the rear center cover, which is welded to the axle housing, but through the center cover on the pinion side of the axle where the drive shaft connects. FORD 9″ BENEFITS The Ford 9″ has a number of benefits over its competition, here are just a few of them.In a Ford 9″ swapping gears is supremely easy as it has a removable third member. This is even more important if for dual purpose vehicles. A Ford 9″ also makes axles easy to install or remove as Ford designed the axle to slide out by yanking four bolts per axle flange for the 28- and 31-spline axles. An added plus for the Ford 9″ is an internal rear-pinion support that also supports the gear end of the pinion to limit gear deflection under high torque loads. Ford improved tooth contact in the Ford 9″ by locating its pinion gear lower on the ring gear. This strengthens the rear end assembly but results in a minor loss of power to drive the gears. A Ford 9″ can save you money if the worst should happen. At some point no matter what axle you buy, that axle will break if you are doing something rough. With a Ford 9″ if the axle breaks inside the housing, the axle retainer keeps the axle in place, where in other types the axle would slide out potentially causing massive sheet metal damage. The Ford 9″ also has the widest variety of ratios on the market, so no matter what you have chances are excellent a Ford 9″ can work with it.