2017 Chevrolet Silverado 3500 HD Differentials

National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

• Low swell in hydrocarbon fluids
• Design type: spring loaded; multi-lip
• Provides good low temperature capability
• Temperature range: -40°F to 225°F; -40°C to 107°C
• Delivers quality and reliable performance for every type of repair

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Unsurpassed quality you can trust
• Validated for fit, form and function
• Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes

Yukon Bearing installation kits are perfect for shops & builders who have shims on the shelf and are looking to save cost over a Master Overhaul kit. This kit uses Timken bearings and races along with all high quality small parts. kit includes carrier bearings and races, pinion bearings and races, pinion seal, crush sleeve (if applicable), oil baffles and slingers (if applicable), marking compound and brush. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your ring & pinion set..

Product Features:

• Fits 2010 and down GM and Chrysler 11.5″
• Included are carrier bearings and races, pinion bearings and races, pinion seal, crush sleeve , marking compound and brush.

The Yukon Grizzly Locker is the ultimate in locking differentials for street, off-road, & drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly locker is a mechanical locking differential. It features 8620 internals for maximum strength. It’s patented design reduces common locker failures. All units assembled in the USA! All Grizzly Lockers are backed by the best warranty in the business! Yukon covers the replacement unit and covers any collaterally damaged parts and associated labor, up to $2,000!

Product Features:

• Fits GM 10.5″ 14 bolt truck
• Installs into standard open carrier
• Patented internal design reduces common locker failures
• 8620 internals for added strength
• Assembled in the USA

National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:

• Premium bearing design matches OEM specifications
• Precision manufactured using premium-grade steel for outstanding durability and performance
• Crowned raceways and rollers to ensure even load distribution for maximum life
• Industry leading coverage
• Professional technicians know they can depend on National

Pilot bearing for 10.5″ 14 bolt truck, 2.050″ O.D.

Product Features:

• Pilot bearing
• Fits GM 10.5″ 14 bolt truck
• 2.050″ O.D.

National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:

• Premium bearing design matches OEM specifications
• Precision manufactured using premium-grade steel for outstanding durability and performance
• Crowned raceways and rollers to ensure even load distribution for maximum life
• Industry leading coverage
• Professional technicians know they can depend on National

National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:

• Premium bearing design matches OEM specifications
• Precision manufactured using premium-grade steel for outstanding durability and performance
• Crowned raceways and rollers to ensure even load distribution for maximum life
• Industry leading coverage
• Professional technicians know they can depend on National

Pennzoil? Synchromesh Fluid is designed to offer optimal protection for moderately loaded gears in manual transmissions. Containing a high detergent additive system, it helps cope with water, dust, dirt, and any other small deposits you might encounter on or off-road(1). Pennzoil? Synchromesh Fluid also offers synchronizer compatibility for performance in manual transmissions, specifically to fulfill the needs of Chrysler, GM, Honda and other transmission requirements. Pennzoil? Synchromesh Fluid meets General Motors specification 9985648 for use where GM part numbers 12345349 or 12345577 are called out for use. Chrysler manual transmission fluid specification MS-9224 is also met. This high quality manual transmission fluid is formulated for good low temperature flow to maintain shift characteristics even after a cold night(2). Corrosion protection is added to help protect your transmission. Pennzoil? Synchromesh fluid is a manual transmission fluid designed for certain manual trans axles and manual transmissions used by general motors or Chrysler. (1)The Anglamol 6091 additive system contains approximately twice the sulfonate detergent levels as current generation PCMO, 4500 ppm as magnesium of magnesium sulfonate. This engine oil type additive will emulsify water and polar contamination sufficiently to handle contamination levels above 0.5% water. Anglamol 6091 – Detergent, friction modifier, extreme pressure agent, seal swell, anti-wear, anti-oxidant. Chemical Composition – Magnesium sulphonate, alkenyl amide, alkenyl ester sulphide, alkenyl phosphite, alkylbenzene, hecterocyclic ether, zinc dithiophosphate. (2)Pour point is less than -39 Deg. C. Low temperature viscosity in a -40 Deg. C Brookfield test of 50,000 cPs maximum, less than a 75W gear oil and the cold cranking viscosity less than a typical conventional SAE 5W engine oil.

Product Features:

• Excellent yellow metal compatibility
• Meets GM specification 9985648 and Chrysler specification MS-9224
• Excellent synchronizer performance
• Exhibits excellent low-temperature performance

Product Features:

• High-performance seal conditioners maintain and preserve the elasticity of seals to help prevent leaks
• Long-life friction modifiers and premium base oils help improve smooth shifting, eliminate slippage and shudder, prevent clutch wear and improve drivability longer than conventional fluids
• Enhanced cleaning additives help reduce varnish formation and keep the transmission running properly longer
• Engineered with a unique blend of viscosity modifiers and base oils to provide better oil flow at low temperatures and greater film protection at higher temperatures

Yukon Minimum installation kits are a low cost solution for gear changes in newer vehicles where the bearings can be reused. This kit uses all high quality components to ensure a smooth set up. kit includes a pinion seal, crush sleeve (if applicable), complete shim kit, marking compound and brush.

Product Features:

• Fits GM and Chrysler 11.5″
• Included are a pinion seal, crush sleeve , complete shim kit, marking compound and brush.

USA Standard Master Overhaul kits let you finish your install with confidence. This kit uses Koyo bearings and races. Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), threading locking compound, marking compound with brush and gasket.

Product Features:

• Fits 2010 and down GM 9.25″ IFS
• Uses Koyo bearings and races
• Included are carrier bearings and races, pinion bearings and races, pinion seal, axle seals, complete shim kit, ring gear bolts, pinion nut, crush sleeve, thread locker, marking compound with brush and silicone.

Yukon 4340 cut to length shaft for GM 14T & 11.5″, 30 spline, 34.8″-38.8″. Yukon 4340 Chrome Moly alloy axles offer a strength increase over stock while retaining a low cost. Yukon 4340 Chrome Moly alloy rear axles come with a limited lifetime warranty against manufacturing defects. Please verify bolt pattern on 2011 & later models. This axle has a 3.562″ bolt pattern. Some late model applcaitons use a larger bolt pattern.

Product Features:

• Fits GM 10.5″ 14 bolt truck and GM 11.5″
• 4340 Chromoly
• 30 spline
• Cut to length design fits 34.8″-38.8″ applications

Axle Shaft

11.5″ Chrysler Helical gear Type positraction.

Product Features:

• Fits GM and Chrysler 11.5″
• 30 spline

Yukon yoke for GM 8.25″ IFS and 9.25″ IFS (mech 3R). 2.556″ snap ring span, 1.125″ cap diameter. Inside snap ring. This yoke uses inside snap rings. All Yukon yokes come with a one year warranty against manufacturing defects.

Product Features:

• Fits GM 8.25″ IFS and 9.25″ IFS
• 30 spline
• Mechanics 3R u-joint size
• Inside snap ring design
• 2.556″ snap ring span
• 1.125″ cap diameter
• Strap style

Yukon yoke for GM 10.5″ 14 bolt truck, 1350, strap style. 3.625″ snap ring span, 1.188″ cap diameter. Outside snap ring. All Yukon yokes come with a one year warranty against manufacturing defects.

Product Features:

• Fits GM 10.5″ 14 bolt truck
• 30 spline
• 1350 u-joint size
• 3.625″ snap ring span
• 1.188″ cap diameter
• Outside snap ring design
• Strap style

USA Standard ring & pinion sets are the right choice to add confidence to your install. USA Standard Gear offers a full line of ring & pinion sets for a variety of common & hard to find applications. USA standard gear offers a standard one year warranty against defects on their ring & pinion sets.

Product Features:

• Fits GM 10.5″ GM 14 bolt truck
• 10.50″ ring gear diameter
• 30 spline pinion
• 12 ring gear bolts
• 4.88 ratio
• Thick gear for 4.10 and down carrier

Yukon Ring & Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled performance & quality. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. All Yukon ring & pinion sets come standard with a one-year warranty.

Product Features:

• Fits GM 10.5″ GM 14 bolt truck
• 10.50″ ring gear diameter
• 30 spline pinion
• 12 ring gear bolts
• 3.73 ratio

The Yukon Dura Grip provides aggressive yet smooth traction to give you the confidence & performance you need. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction. The Yukon Dura Grip uses a nodular case and forged 4320 internals for added strength along with composite clutches for high performance and long life. All units are Rebuildable and many offer upgrades to increase aggressiveness for racing applications. Each unit carries a one year warranty against defects.

Product Features:

• Fits GM and Chrysler 11.5″ with 30 spline axles
• Clutch style positraction
• Smooth design
• Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
• Fully rebuildable
• Assembled in the USA

Product Features:

• Fits GM and Chrysler 11.5″
• Steel

aFe Power’s new rear differential cover brings performance engineering to the protection of your axle’s differential. This differential cover is constructed out of durable cast aluminum with reinforced ribs for maximum strength. This cover comes with all necessary hardware for easy installation. Pro Series differential covers include an oil level sight glass and magnetic deep reach fill plug. This cover is finished with black powder-coating and machined fins for a distinctive look. PRO Guard D2 Synthetic 75W-90 Gear Oil: The supplied gear oil (4 quarts) exceeds the performance requirements of API GL-5 recommended for both open and limited slip applications. Increased Oil Capacity: This cover has an increased oil capacity over stock for better performance over a longer duration. Built-in Internal/External Fins: Built-in internal and external fins transfer heat from the oil to the outside air for maximum cooling. Magnetic Plugs: This system incorporates a magnetic drain and deep reach fill plug to capture loose particles for maximum protection. Calibration Plug: Calibration plug set to the factory oil level to eliminate overfilling. Oil Level Sight Glass: A pre-installed oil level sight glass allows quick and easy oil inspection. When it comes to engineering for power, performance, protection and value, aFe Power is the only choice.

Product Features:

• Durable Cast Aluminum
• Magnetic Drain and Fill Plugs Capture Loose Particles
• Calibration Plug Set to Factory Fill Level Eliminates Overfilling
• Oil Level Sight Glass for Quick/Easy Inspection

Differential Bearing

National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:

• Premium bearing design matches OEM specifications
• Precision manufactured using premium-grade steel for outstanding durability and performance
• Crowned raceways and rollers to ensure even load distribution for maximum life
• Industry leading coverage
• Professional technicians know they can depend on National

Product Features:

• Brand may vary by location

National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:

• Premium bearing design matches OEM specifications
• Precision manufactured using premium-grade steel for outstanding durability and performance
• Crowned raceways and rollers to ensure even load distribution for maximum life
• Industry leading coverage
• Professional technicians know they can depend on National

NO RETURN NP516549 SET-UP Bearing (1 SINGLE Bearing) for Dana 80 , 11.5AAM , 4.375″ OD .

Product Features:

• Set up bearing
• Fits NP5516549 pinion bearing
• Easily slips on and off pinion journal to allow for pinion depth adjustment

National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:

• Premium bearing design matches OEM specifications
• Precision manufactured using premium-grade steel for outstanding durability and performance
• Crowned raceways and rollers to ensure even load distribution for maximum life
• Industry leading coverage
• Professional technicians know they can depend on National