Third Member Assemblies

4 Product Groups
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    G2 Axle & Gear 9 Inch Third Member Cases

    G2 Bare 9inch Third Member

    From $319.99

    G2 Axle & Gear Third Member Cases

    G2 Toyota Third Member

    From $1,399.99

    5.0 5.0 (1)

    Trail Gear Toyota Third Member Assemblies

    Trail Gear Toyota Third Member Assembly

    From $1,195.74

    Dana Spicer Ford 9inch Cases

    Dana Spicer Ford 9inch Cases

    From $346.99

    On Sale
    45 Products
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    G2 Toyota 8 Inch Third Member 5.29 Ratio With Detroit Locker - 7-2043-529L

    $1,699.99

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

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    Out Of Stock Call 877-474-4821 for availability.
    Free! Curbside & In-Store Pickup: Out Of Stock Call 877-474-4821 for availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • G2 Toyota 8 Inch 5.29 High Pinion Third Member with ARB - 7-2043-529RA

    $2,199.99

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

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    Out Of Stock Call 877-474-4821 for availability.
    Free! Curbside & In-Store Pickup: Out Of Stock Call 877-474-4821 for availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • G2 Toyota 8 Inch 4.88 High Pinion Third Member With ARB - 7-2043-488RA

    $1,640.99

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

    Ship to Home:

    Out Of Stock Call 877-474-4821 for availability.
    Free! Curbside & In-Store Pickup: Out Of Stock Call 877-474-4821 for availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • G2 Differential Carrier - 7-2043-456TTR

    $1,511.99

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

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    Out Of Stock Call 877-474-4821 for availability.
    Free! Curbside & In-Store Pickup: Out Of Stock Call 877-474-4821 for availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • G2 Toyota 8 Inch Third Member 5.29 Ratio With ARB - 7-2043-529A

    $2,199.99

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

    Ship to Home:

    Out Of Stock Call 877-474-4821 for availability.
    Free! Curbside & In-Store Pickup: Out Of Stock Call 877-474-4821 for availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Trail Gear Toyota Third Member Assembly V6 4.88 Detroit Locker - 140036-1-KIT

    $1,825.74

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

    Ship to Home:

    Out Of Stock Call 877-474-4821 for availability.
    Free! Curbside & In-Store Pickup: Out Of Stock Call 877-474-4821 for availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Trail Gear Assembled 3rd Member, 4.88 Ratio, 4 Cylinder Housing, Grizzly Locker - 301555-1-KIT

    $1,703.63

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

    Ship to Home:

    Out Of Stock Call 877-474-4821 for availability.
    Free! Curbside & In-Store Pickup: Out Of Stock Call 877-474-4821 for availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Trail Gear Assembled 3rd Member, 4.88 Ratio, High Pinion, Zip Locker - 301565-1-KIT

    $2,378.00

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

    Ship to Home:

    Out Of Stock Call 877-474-4821 for availability.
    Free! Curbside & In-Store Pickup: Out Of Stock Call 877-474-4821 for availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Trail Gear Assembled 3rd Member, 5.29 Ratio, High Pinon, Grizzly Locker - 301560-1-KIT

    $1,825.74

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

    Ship to Home:

    Out Of Stock Call 877-474-4821 for availability.
    Free! Curbside & In-Store Pickup: Out Of Stock Call 877-474-4821 for availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Trail Gear Assembled 3rd Member, 5.29 Ratio, 4 Cylinder Housing, Zip Locker - 301562-1-KIT

    $2,227.81

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

    Ship to Home:

    Out Of Stock Call 877-474-4821 for availability.
    Free! Curbside & In-Store Pickup: Out Of Stock Call 877-474-4821 for availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Trail Gear Assembled 3rd Member, 5.29 Ratio, V6 Engine, Zip Locker - 301564-1-KIT

    $2,378.00

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

    Ship to Home:

    Out Of Stock Call 877-474-4821 for availability.
    Free! Curbside & In-Store Pickup: Out Of Stock Call 877-474-4821 for availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Trail Gear Toyota Third Member Assembly V6 4.88 Spool - 140068-1-KIT

    $1,517.38

    • Fitment: Universal Fit
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    Out Of Stock Call 877-474-4821 for availability.
    Free! Curbside & In-Store Pickup: Out Of Stock Call 877-474-4821 for availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Trail Gear Toyota Third Member Assembly 4 Cyl 5.29 Detroit Locker - 140035-1-KIT

    $1,703.63

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

    Ship to Home:

    Out Of Stock Call 877-474-4821 for availability.
    Free! Curbside & In-Store Pickup: Out Of Stock Call 877-474-4821 for availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Trail Gear Assembled 3rd Member, 5.29 Ratio, V6 Housing, Grizzly Locker - 301558-1-KIT

    $1,825.74

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

    Ship to Home:

    Out Of Stock Call 877-474-4821 for availability.
    Free! Curbside & In-Store Pickup: Out Of Stock Call 877-474-4821 for availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Trail Gear Assembled High Pinion 3rd Member with Grizzly Locker and 4.88 Gears - 301559-1-KIT

    $1,825.74

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

    Ship to Home:

    Ships Directly From Manufacturer Timing based on Manufacturer's availability.
    Free! Curbside & In-Store Pickup: Ships Directly From Manufacturer Timing based on Manufacturer's availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • G2 Toyota 8 Inch 4.88 High Pinion Third Member With Detroit Locker - 7-2043-488RL

    $1,399.99

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

    Ship to Home:

    Out Of Stock Call 877-474-4821 for availability.
    Free! Curbside & In-Store Pickup: Out Of Stock Call 877-474-4821 for availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Dana Spicer Ford 9Inch Iron 3.062Inch Bore Third Member Case - 10007700

    $346.99

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

    Ship to Home:

    Ships Directly From Manufacturer Timing based on Manufacturer's availability.
    Free! Curbside & In-Store Pickup: Ships Directly From Manufacturer Timing based on Manufacturer's availability.
    4 Wheel Parts Glen Burnie #250 View Other Stores

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  • G2 Toyota 8 Inch 5.29 High Pinion Third Member With Detroit Locker - 7-2043-529RL

    $1,427.99

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

    Ship to Home:

    Out Of Stock Call 877-474-4821 for availability.
    Free! Curbside & In-Store Pickup: Out Of Stock Call 877-474-4821 for availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

  • Get it installed from $544.00 each. ?

  • Trail Gear Toyota 8" 5.29 Ratio Third Member Assembly - 140067-1-KIT

    $1,237.05

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

    Ship to Home:

    Ships Directly From Manufacturer Timing based on Manufacturer's availability.
    Free! Curbside & In-Store Pickup: Ships Directly From Manufacturer Timing based on Manufacturer's availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Trail Gear Toyota Third Member Assembly High Pinion 4.88 ARB - 140044-1-KIT

    $2,753.95

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

    Ship to Home:

    Out Of Stock Call 877-474-4821 for availability.
    Free! Curbside & In-Store Pickup: Out Of Stock Call 877-474-4821 for availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Trail Gear Assembled 3rd Member, 5.29 Ratio, 4 Cylinder Housing, Grizzly Locker - 301556-1-KIT

    $2,144.32

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

    Ship to Home:

    Out Of Stock Call 877-474-4821 for availability.
    Free! Curbside & In-Store Pickup: Out Of Stock Call 877-474-4821 for availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Trail Gear Toyota Third Member Assembly High Pinion 4.88 Detroit Locker - 140038-1-KIT

    $1,825.74

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

    Ship to Home:

    Out Of Stock Call 877-474-4821 for availability.
    Free! Curbside & In-Store Pickup: Out Of Stock Call 877-474-4821 for availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

  • Want this professionally installed? ?

  • Trail Gear Assembled 3rd Member, 5.29 Ratio, High Pinon, Zip Locker - 301566-1-KIT

    $2,378.00

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

    Ship to Home:

    Out Of Stock Call 877-474-4821 for availability.
    Free! Curbside & In-Store Pickup: Out Of Stock Call 877-474-4821 for availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

  • Want this professionally installed? ?

  • G2 Toyota 8 Inch Third Member 4.88 Ratio With Detroit Locker - 7-2043-488L

    $1,399.99

    • Fitment: Universal Fit
    • + View More Specs - View Less Specs

    Ship to Home:

    Out Of Stock Call 877-474-4821 for availability.
    Free! Curbside & In-Store Pickup: Out Of Stock Call 877-474-4821 for availability. 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • For years, off-roading and truck enthusiasts like yourself have searched junk yards to get their hands on a third member assembly. They went through all kinds of trouble to get the parts they needed to make their off-roaders crawl over boulders better and make their trucks get all the horsepower they crave. 4 Wheel Parts has put an end to that madness by offering a huge variety of third member assemblies in one place.

    More Variety
    Stop working with the junk you found in some heap and start working with the third member that is perfect for your ride. We have Toyota parts like the Toyota 5.29 third member, Toyota 4.10 third member, and more. Each of these parts comes with the bells and whistles you need to craft the off-roader of your dreams. You'll find parts with 4.88 gear ratios, all Timken bearings, ARB Air Locker Differentials, and more.

    Here to Support You
    We don't just sell parts to people who love trucks, SUVs, Jeeps, and off-roading vehicles; we build a community. If you have questions before or after your purchase, you can call our Gear Squad. These trained professionals can answer all your questions about your drivetrain and help you get on (or off) the road quicker than if you go alone.

    Easy to Buy
    4 Wheel Parts knows that driving is the best part of owning a truck or SUV, not shopping for parts. That's why we make shopping easy. First, you can use our search features to find pieces that will fit your ride. Secondly, we offer the best prices on these parts and guarantee those costs for 90 days. Third, we provide financing options for more costly components, like third member assemblies. Finally, you can get free shipping on some orders, which is a huge saving for heavy automotive parts. If you're tired of scavenging for third member assemblies, buy yours from 4 Wheel Parts today. We have the variety, support, and ease of shopping you need.

    Toyota 3rd Member
    Toyota is one of the most trusted car companies for a reason, you don't have to tell us why you chose it for your off-roading joy ride. You want to keep that ride moving you through mountainous terrains and off the beaten path, so you're going to add and replace with only the highest quality parts. At 4 Wheel Parts, we have a selection ranging from entire Toyota 4.10 third member assemblies to Toyota 4.56 third member assemblies all from G2 Axle and Gear. The brand makes dynamic and durable parts that work well with Toyotas. Just remember, as with most off-roading additions, some driveshaft modifications may be required.

    The Best Deals
    Better traction and maneuverability is only a few clicks away. Get your truck climbing you to your next camping spot with a Tacoma 3rd member designed with the truck in mind. Here at 4 Wheel Parts you get only the best upgrades and OEM parts for Toyota truck or SUV. Our low prices are hard to beat, but we also offer great sales prices so you get the most for your money. Trick up your Toyota off-roader today with our help.

    The off-roading lifestyle requires a certain amount of maneuverability. When you take your Toyota truck or SUV out boulder crawling you want each wheel to be able to move smoothly on its own or as part of a team to work you up that next rock. If you're starting to feel yourself slipping or getting stuck, it's time to check out your differentials. The Toyota third member is your best friend for off-roading adventures if you let it be. To lumber up that next rock, you want a product that delivers. Don't rely on a salvage yard for parts that your adventures depend on. Find the entire assembly you need for your Toyota from a brand you can trust here at 4 Wheel Parts.