1970 AMC Hornet Differentials

Please Select your Vehicle to See Exact Fit Parts

Keep Your 1970 AMC Hornet in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1970 AMC Hornet looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Oil, Rear Housing Cover Gaskets, and Rear Differential Cover Gaskets. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Differentials from Trusted Brands

Looking for a reliable Differential? We’ve got you covered with options from brands you know and trust like Motive Gear, National, and Felpro. For example, Motive Gear Differentials start at just $2.99 with an average 4.0 star rating. National and Felpro offer similar pricing and quality, backed by strong customer feedback. With over 456 reviews and a solid 4.4 star average, you can shop with confidence knowing other AMC Hornet owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1970 AMC Hornet Differential at Advance Auto Parts is around $197.76, with a range that starts at $1.99 and goes up to $1,566.99. With 143 options in stock from 10 trusted brands, finding the right fit is easy. Popular picks like Yukon Gear 3 Qt – 80W90 Conventional Gear Oil with Posi Additive, 15003, National Bearing, M86649, and National Tapered Roller Bearing Cone, LM501349 start at just $11.29 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Differential, don’t forget to check out other key components like Drive Shafts and Axles and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 1970 AMC Hornet in peak condition, inside and out.

Essential 1970 AMC Hornet Differentials

Yukon Gear – Yukon Gear Standard Open Carrier Case & Spiders, Amc Model 35, 3.54 & Up, 20061 (Part No.20061)

Yukon Gear Standard Open Carrier Case & Spiders, Amc Model 35, 3.54 & Up, 20061

from

$599.99
Model 35 standard Open carrier loaded, 3.54 & up + 3.27, complete, (No bearings or shims).
See More

Yukon Gear – Yukon Gear Crush Sleeve, 33093 (Part No.33093)

Yukon Gear Crush Sleeve, 33093

from

$10.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
See More

Schaeffler – Schaeffler Cup, M802011 (Part No.M802011)

Schaeffler Cup, M802011

from

$13.99
Our wheel seals are engineered using only the highest-quality materials to meet vehicle manufacturer specificatons. We work with suppliers to design seals that meet FAG’s quality standards. Seals are designed to protect wheel end components from contamination – such as dirt, dust, and moisture – and prevent the loss of grease over the life of the bearing. The specifications for wheel seals are very demanding, and the type required depends on the specific application, position and vehicle class.
See More

National – National Tapered Roller Bearing Cone, LM501349 (Part No.LM501349)

National Tapered Roller Bearing Cone, LM501349

from

$11.29
Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.
See More

Victor Reinz – Victor Reinz Differential Carrier Gasket, 71-14837-00 (Part No.71-14837-00)

Victor Reinz Differential Carrier Gasket, 71-14837-00

from

$13.99
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.
See More

Yukon Gear – Yukon Gear O-Ring for Dana 30 & Model 35 Zip Locker Seal Housing, 34005 (Part No.34005)

Yukon Gear O-Ring for Dana 30 & Model 35 Zip Locker Seal Housing, 34005

from

$13.99
The Yukon Zip Locker is the latest in on-demand traction. Its air-operated design allows you to switch from an open differential to 100% lockup when you need it, giving you the ultimate in driver select ability.
See More

Yukon Gear – Yukon Gear Carrier Installation Kit for Amc Model 35 Differential, 57011 (Part No.57011)

Yukon Gear Carrier Installation Kit for Amc Model 35 Differential, 57011

from

$98.99
Yukon Carrier Installation Kits are a convenient and low-cost solution for carrier changes in cases where one is upgrading to a positraction limited slip differential, a mechanical locker, or an air operated locker. These kits contain carrier bearings and races and a carrier shim kit.
See More

Yukon Gear – Yukon Gear High Performance Ring & Pinion Gear Set For Model 35 In A 3.07 Ratio, 24178 (Part No.24178)

Yukon Gear High Performance Ring & Pinion Gear Set For Model 35 In A 3.07 Ratio, 24178

from

$431.99
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.
See More

Driveworks – Driveworks Taper Bearing Set, S-A-36 (Part No.S-A-36)

Driveworks Taper Bearing Set, S-A-36

from

$11.99
Value-priced bearing meets all cataloged application requirements.
See More

Yukon Gear – "Yukon Gear Dana 44, Ford 8"" / 9"", and Model 20 Side Gear Thrust Washer Replacement, 33283" (Part No.33283)

"Yukon Gear Dana 44, Ford 8"" / 9"", and Model 20 Side Gear Thrust Washer Replacement, 33283"

from

$5.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
See More

Yukon Gear – "Yukon Gear Dana 25, 27, 30, 44, Model 20 And Model 35, GM 7.5"", 8.2"", 8.5"", 12P, 12T, C9.25 Rear Cover Bolt, 33286" (Part No.33286)

"Yukon Gear Dana 25, 27, 30, 44, Model 20 And Model 35, GM 7.5"", 8.2"", 8.5"", 12P, 12T, C9.25 Rear Cover Bolt, 33286"

from

$9.99
“5/16″”-18 cover bolt, Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, Chrysler 9.25 rear, GM 7.5″”, 7.625″”, 8.2″”, 8.5″”, 12 bolt passenger car and truck.”
See More

Felpro – Felpro Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket, RDS 13089 (Part No.RDS 13089)

Felpro Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket, RDS 13089

from

$8.29
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
See More

Yukon Gear – Yukon Gear Zip Locker Rear Switch Cover, 34010 (Part No.34010)

Yukon Gear Zip Locker Rear Switch Cover, 34010

from

$7.99
The Yukon Zip Locker is the latest in on-demand traction. Its air-operated design allows you to switch from an open differential to 100% lockup when you need it, giving you the ultimate in driver select ability.
See More

Motive Gear – Motive Gear Differential Ring and Pinion, D35-373 (Part No.D35-373)

Motive Gear Differential Ring and Pinion, D35-373

from

$191.99
Motive Gear Differential Ring and Pinion, D35-373.
See More

Yukon Gear – Yukon Gear Pinion Install Kit for Model 20 Differential, 13082 (Part No.13082)

Yukon Gear Pinion Install Kit for Model 20 Differential, 13082

from

$175.99
Yukon Pinion Installation Kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings and races can be reused. This kit features Timken bearings and races along with high-quality seals and small parts. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your gear set.
See More

Yukon Gear – Yukon Gear Zip Locker For Model 35 With 27 Spline Axles, 3.54 & Up, 34027 (Part No.34027)

Yukon Gear Zip Locker For Model 35 With 27 Spline Axles, 3.54 & Up, 34027

from

$1286.99
The Yukon Zip Locker is the latest in on-demand traction. Its air-operated design allows you to switch from an open differential to 100% lockup when you need it, giving you the ultimate in driver selectability. The Yukon Zip locker is an air operated locker that provides selectable traction for off road or street use. This unit features 4320 Chrome Moly internals for added strength. Assembled in the USA! compressor sold separately. All Zip Lockers are backed by the best warranty in the business! All Zip Lockers come with a six (6) year warranty, including any collaterally damaged parts and associated labor, up to $2,000, for the first two (2) years.
See More

USA Standard Gear – USA Standard Gear Differential Rebuild Kit, 37066 (Part No.37066)

USA Standard Gear Differential Rebuild Kit, 37066

from

$225.99
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.
See More

Yukon Gear – "Yukon Gear 8.75"" Chrysler & 55P Chevy Power Lok clutches, Model 20 also, POSI., 16148" (Part No.16148)

"Yukon Gear 8.75"" Chrysler & 55P Chevy Power Lok clutches, Model 20 also, POSI., 16148"

from

$275.99
Yukon Gear & Axle clutch kits fit popular GM and Chrysler diffs outfitted with a Power Lok positraction unit feature 14 advanced carbon clutch plates, ensuring total traction and long-lasting performance.
See More

Yukon Gear – Yukon Gear Pinion Seal for Model 20 and Model 35, 30079 (Part No.30079)

Yukon Gear Pinion Seal for Model 20 and Model 35, 30079

from

$9.99
Yukon Mighty Seals use the latest design and manufacturing technologies to produce a precision fit that seals tight and lasts for years to come.
See More

Yukon Gear – Yukon Gear Bearing Race Driver for Popular Ford, Gm, Amc, Chrysler, and Dana Diffs, 56022 (Part No.56022)

Yukon Gear Bearing Race Driver for Popular Ford, Gm, Amc, Chrysler, and Dana Diffs, 56022

from

$188.99
Yukon Gear & Axle offers a full line of top quality differential tools to save time and money.
See More

Yukon Gear – Yukon Gear Super Carrier Shim Kit for Model 35, 55063 (Part No.55063)

Yukon Gear Super Carrier Shim Kit for Model 35, 55063

from

$54.99
Yukon shim kits are precision machined and tailored for each individual application to ensure you have the right shims for every set up.
See More

Motive Gear – Motive Gear Differential Bearing Kit – Koyo, R35JR (Part No.R35JR)

Motive Gear Differential Bearing Kit - Koyo, R35JR

from

$109.99
Motive Gear Differential Bearing Kits Include Front & Rear Pinion Bearing, Pinion Seal, Carrier Bearings, Pilot Bearing Where Applicable, Gear Marking Compound, Crush Sleeve, Pinion Nut, Brush, Thread Locking Compound And Cover Gasket Or Rtv
See More

Yukon Gear – Yukon Gear Yoke for Model 35 with A 1310 U/Joint Size, 41098 (Part No.41098)

Yukon Gear Yoke for Model 35 with A 1310 U/Joint Size, 41098

from

$115.99
Yukon Gear and Axle manufactures a complete line of general replacement and performance series of pinion yokes for many street, racing, and heavy-duty off-road applications.
See More

Yukon Gear – Yukon Gear Model 20 Gasket, 23025 (Part No.23025)

Yukon Gear Model 20 Gasket, 23025

from

$15.99
Model 20 gasket. EXTERNAL SUPPLY>FDO>BACK ROOM-FDO>APPLICATION SPECIFIC from Yukon Gear
See More

USA Standard Gear – USA Standard Gear Differential Cross Pin, 17011 (Part No.17011)

USA Standard Gear Differential Cross Pin, 17011

from

$26.99
Spartan spring & pin kit, fits smaller designs.
See More

Motive Gear – Motive Gear Differential Pinion Bearing Spacer, 4105 (Part No.4105)

Motive Gear Differential Pinion Bearing Spacer, 4105

from

$22.79
Motive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both on and off-road, check out Motive Gear. Motive Gear products can be found in the winner’s circle at racing events worldwide. The superior quality of Motive Gear components is the result of years of racing development, outstanding design and state-of-the-art manufacturing methods. Extensive testing is performed on all products by our in-house engineers.
See More

Motive Gear – Motive Gear Differential Pinion Shim Kit, 1127 (Part No.1127)

Motive Gear Differential Pinion Shim Kit, 1127

from

$21.29
Motive Gear Differential Pinion Shim Kit, 1127.
See More

Motive Gear – Motive Gear Differential Pinion Nut, 379570S (Part No.379570S)

Motive Gear Differential Pinion Nut, 379570S

from

$6.99
All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of our products undergo rigid quality control processes to insure proper fit, performance and longevity. Motive Gear products can be found in the winners circle at NHRA, IHRA, NMRA, NMCA, SODA, SCORE, BITD, Ultra-4 and NASCAR events because we offer unmatched selection and quality demanded by racers and their crew chiefs – the same quality and selection demanded by DIY customers and top mechanics. With four warehouses strategically located across North America, most Motive Gear orders arrive within 2-4 days. Win with Motive Gear.
See More

Most Popular Differential Oil for 1970 AMC Hornets

Enhance your 1970 AMC Hornet with one of the 2 Differential Oil we have in stock, starting at just $57.99.

Yukon Gear – Yukon Gear 3 Qt – 80W90 Conventional Gear Oil with Posi Additive, 15003 (Part No.15003)

Yukon Gear 3 Qt - 80W90 Conventional Gear Oil with Posi Additive, 15003

from

$57.99
Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials. This kit includes three quarts of oil and a bottle of Yukon Limited Slip Friction modifier that reduces noise and chatter in clutch driven positraction units and limited slip differentials.
See More

Yukon Gear – "Yukon Gear Redline Synthetic ""Shock Proof"" Oil with Positraction Additive – 4 Quarts, 15005" (Part No.15005)

"Yukon Gear Redline Synthetic ""Shock Proof"" Oil with Positraction Additive - 4 Quarts, 15005"

from

$148.99
Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection. This kit includes four quarts of oil and a bottle of Yukon Limited Slip Friction modifier that reduces noise and chatter in clutch driven positraction units and limited slip differentials.
See More

Best-Selling 1970 AMC Hornet Rear Housing Cover Gasket

Upgrade your Hornet with our best-selling Rear Housing Cover Gasket with a 4.5 Starts rating across 12 reviews.

Felpro – Felpro Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket, RDS 13089 (Part No.RDS 13089)

Felpro Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket, RDS 13089

from

$8.29
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
See More

Top-Quality Rear Differential Cover Gaskets for 1970 AMC Hornets

Choose a high-quality OEM or aftermarket Rear Differential Cover Gasket for AMC Hornets and enjoy top-notch performance from $15.99.

Yukon Gear – Yukon Gear Model 20 Gasket, 23025 (Part No.23025)

Yukon Gear Model 20 Gasket, 23025

from

$15.99
Model 20 gasket. EXTERNAL SUPPLY>FDO>BACK ROOM-FDO>APPLICATION SPECIFIC from Yukon Gear
See More

Top Picks for 1970 AMC Hornet Differential Bearings

Invest in one of our 7 durable Differential Bearings for your 1970 AMC, knowing you’re getting trusted brands and expert craftsmanship.

Driveworks – Driveworks Taper Bearing Cup, S-LM-501314 (Part No.S-LM-501314)

Driveworks Taper Bearing Cup, S-LM-501314

from

$7.99
Value-priced bearing meets all cataloged application requirements.
See More

Schaeffler – Schaeffler Bearing – TRB (Tapered Roller Bearing), KT36 (Part No.KT36)

Schaeffler Bearing - TRB (Tapered Roller Bearing), KT36

from

$28.99
With advanced load-carrying capacity and compact design, tapered roller bearings are used in wheel bearings, transmissions, differentials, transfer cases and other miscellanous applications. FAG manufacturers over 100 million tapered roller bearings annually.
See More

Schaeffler – Schaeffler Cone, KLM603049 (Part No.KLM603049)

Schaeffler Cone, KLM603049

from

$21.99
With advanced load-carrying capacity and compact design, tapered roller bearings are used in wheel bearings, transmissions, differentials, transfer cases and other miscellanous applications. FAG manufacturers over 100 million tapered roller bearings annually.
See More

Yukon Gear – "Yukon Gear Model 35 (Standard Open & Tracloc) 8.25"" Chrysler Tracloc Cross Pin Bolt, 33230" (Part No.33230)

"Yukon Gear Model 35 (Standard Open & Tracloc) 8.25"" Chrysler Tracloc Cross Pin Bolt, 33230"

from

$13.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
See More

Schaeffler – Schaeffler Cup, M802011 (Part No.M802011)

Schaeffler Cup, M802011

from

$13.99
Our wheel seals are engineered using only the highest-quality materials to meet vehicle manufacturer specificatons. We work with suppliers to design seals that meet FAG’s quality standards. Seals are designed to protect wheel end components from contamination – such as dirt, dust, and moisture – and prevent the loss of grease over the life of the bearing. The specifications for wheel seals are very demanding, and the type required depends on the specific application, position and vehicle class.
See More

Schaeffler – Schaeffler Cone, KLM48548 (Part No.KLM48548)

Schaeffler Cone, KLM48548

from

$12.99
With advanced load-carrying capacity and compact design, tapered roller bearings are used in wheel bearings, transmissions, differentials, transfer cases and other miscellanous applications. FAG manufacturers over 100 million tapered roller bearings annually.
See More

Schaeffler – Schaeffler Cup, M88010 (Part No.M88010)

Schaeffler Cup, M88010

from

$10.99
With advanced load-carrying capacity and compact design, tapered roller bearings are used in wheel bearings, transmissions, differentials, transfer cases and other miscellanous applications. FAG manufacturers over 100 million tapered roller bearings annually.
See More

Differential Covers for 1970 AMC Hornets

Make a smart move for your 1970 AMC Hornet with products all priced from $59.99 to $269.99.

Yukon Gear – Yukon Gear Finned Polished Aluminum Cover for AMC Model 20, 32031 (Part No.32031)

Yukon Gear Finned Polished Aluminum Cover for AMC Model 20, 32031

from

$269.99
These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design made from aluminum and polished to perfection.
See More

Yukon Gear – Yukon Gear Steel Cover for Amc Model 35, with Metal Fill Plug, 32335 (Part No.32335)

Yukon Gear Steel Cover for Amc Model 35, with Metal Fill Plug, 32335

from

$76.99
These Yukon replacement diff covers are a direct bolt-on.
See More

Yukon Gear – Yukon Gear Chrome Cover for AMC Model 20, 32019 (Part No.32019)

Yukon Gear Chrome Cover for AMC Model 20, 32019

from

$74.99
These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design finished in chrome.
See More

Yukon Gear – Yukon Gear Chrome Cover for Model 35, 32020 (Part No.32020)

Yukon Gear Chrome Cover for Model 35, 32020

from

$59.99
These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design finished in chrome.
See More

Top-Rated Differential Brands For Your 1970 AMC Hornet

When it comes to finding the perfect Differential for your 1970 AMC Hornet, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 10 trusted brands. We carry the most popular Differential brands including Felpro, National, and Motive Gear, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $2.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1970 AMC Hornet, providing peace of mind with parts that meet or exceed OEM standards.

Popular Felpro 1970 AMC Hornet Differentials

If you’re looking for a top-quality Differential for your 1970 AMC Hornet, Advance Auto Parts has exactly what you need with our selection of Felpro Differentials. We have 1 Felpro Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $8.29, you’ll find the perfect Differential for your needs and budget. Felpro Differentials for the 1970 AMC Hornet come highly rated, with over 12 customer reviews and an impressive average rating of 4.6 stars. Choosing a Felpro Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

Top-Quality National 1970 AMC Hornet Differentials

For those in search of a high-quality Differential for their 1970 AMC Hornet, Advance Auto Parts offers a great selection of National Differentials. With 2 National Differentials in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Differentials start at just $11.99, with an average price of $14.64, giving you a range of options to suit your budget. Backed by over 5 customer ratings and an average rating of 4.3 stars, National Differentials provide both reliability and excellent performance. Choosing a National Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
National Bearing, M86649
from $17.29
(3)
National Bearing, M86649
“as advertised”
National Bearing Race, LM501314
from $11.99
(2)
National Bearing Race, LM501314
“good quality & price”

FAQs for 1970 AMC Hornet Differentials

What are the best-selling Differentials for 1970 AMC Hornets?

Out of 143 Differentials that fit 1970 AMC Hornets, the following parts are the top sellers:

What’s the price range for 1970 AMC Hornet Differentials?

The prices of Differentials for the 1970 AMC Hornet range from $1.99 up to $1,566.99 for the most premium parts.

What is the average price of a Differential for a 1970 AMC Hornet?

The average price for Differentials for the 1970 AMC Hornet is $197.76. Keep in mind the variety of part types within our Differential category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Differentials for other AMC Hornet model years?

Yes, we carry Differentials for 6 model years of AMC Hornets between 1971 and 1977. The following model years are the most popular for Differential purchases: 1977, 1976, 1975, 1974, 1973, 1972, and 1971.

Does Advance Auto Parts sell Differentials for any other 1970 AMC models?

Yes. We stock Differentials for 4 other popular 1970 AMC models. Some of the most popular are 1970 Gremlin Differentials, 1970 AMX Differentials, 1970 Ambassador Differentials, 1970 Rebel Differentials, and 1970 Javelin Differentials.

What types of Differentials do you sell for my 1970 AMC Hornet?

As of 9/14/26, these are some of the most in-demand types of Differentials for a 1970 AMC Hornet:

Can I get help with 1970 AMC Hornet Differential orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about AMC Differentials and more.

What is your return policy for AMC Hornet Differentials?

Advance Auto Parts keeps returns simple. For new AMC Hornet Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.