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Axle Upgrades

Marfield UM-06 Chromoly Birfield Joints

Larger tires and bigger rocks require the latest axle technology. These heavy duty replacement Birfield joints are made entirely from 4340 Chromoly steel. Full ball races allow joint unsurpassed turning angles. Can be used with stock our heavy duty Alloy USA Chromoly inner axles listed below.

Two year warranty. If you break one, send it back and we will replace it for free. If you break a second one during the two year period we will replace it for 1/2 price.

 

UM-06 Chromoly Birfield
Add To Shopping Cart MC-12300, Marfield UM-06 Chromoly Joint, $195 SALE! $159
Add To Shopping Cart MC-12108, Replacement Snap Ring Clip $1.51
 

Axle COMBO Deal

Our Axle COMBO Deal combines the rock punishing performance of our UM06 Chromoly Birfield Joints with the torque eating Alloy USA Chromoly Inner Axle Shafts and passes the savings on to you. This COMBO saves over $50! Same non-combo warranties apply. Please read above and below for more information.

Chromoly Axle COMBO Deal
Add To Shopping Cart MC-12300-X, Front Chromoly Axle COMBO, $529
 

Marfield UM-05 Birfield Joints

These heavy duty joints feature a thicker outer shell that resists breaking. Stronger than stock, yet costs much less than factory replacements. Made by EMPI in JAPAN from all new material.

MC-12302, Marfield UM-05 Joint, $80
Add To Shopping Cart MC-12108, Replacement Snap Ring Clip $1.51

 

Marfield UM-05

 
Alloy USA 4340 Front Inner Axle Set

If your running heavy duty Birfield joints, then you will also want to run stronger inner axle shafts for a matched set. For this reason, we are proud to offer Alloy USA 4340 Chromoly front inner axle shafts!
These axle shafts are made from High Tensile Strength 4340 Chromoly Steel, and are heat-treated twice to produce ultra heavy-duty axle shafts that are much stronger than stock. Alloy USA is so confident in these shafts that they offer an exclusive 10-Year warranty program through Marlin Crawler! These shafts are sold as a set and come with inner snap rings installed.
Price includes both passenger (short side) and driver (long side) axles. Fits 1979-1985 Toyota Pickup/4Runner front axles.

Add To Shopping Cart MC-12310, Alloy USA Chromoly Front Inner Axle Set, $249
 
Alloy USA 4340 Rear Axle Shafts

These High Strength Alloy USA Rear Axle Shafts are double heat-treated to produce heavy-duty High Tensile Strength 4340 Chromoly Steel axles that are extremely tough and offer exceptional strength. Alloy USA is so confident in these rear axle shafts that they offer an exclusive 10-Year warranty program through Marlin Crawler!
We sell these shafts individually or as a set pair. Applications currently include both wide and narrow rear differential housings from 1979 - 1995, Toyota Pickups and 4Runners.

Add To Shopping Cart MC-12311, Alloy USA Chromoly Rear Axle, 1979-85, $174.50 SALE! $99 (each)
Add To Shopping Cart MC-12312, Alloy USA Chromoly Rear Axle Set, 1979-85, $349 SALE! $199 (pair)
Add To Shopping Cart MC-12313, Alloy USA Chromoly Rear Axle, 1986-95, $174.50 (each)
Add To Shopping Cart MC-12314, Alloy USA Chromoly Rear Axle Set, 1986-95, $349 (pair)
Add To Shopping Cart MC-12315, Alloy USA Chromoly Tacoma Rear Axle, 1995-2000, $174.50 (each)
Add To Shopping Cart MC-12316, Alloy USA Chromoly Tacoma Rear Axle Set, 1995-2000, $349 (pair)
 

Birfield Eliminator Kit

This kit replaces the Birfield joints with Dana 44 U joints. Kit contains everything needed for conversion.

Add To Shopping Cart MC-12303, Birfield Eliminator Kit $439 (kit)

 

 
Toyota 6-Lug Wheel Spacers

We stock high quality bolt-on 1.5" wheel spacers. Each spacer is made from T6 Billet 6061 Aluminum and has a wheel pattern of 6 on 5.5 pattern, with Grade 10.9 (American Grade 8 Equivalent) 12mm studs and nuts. Easy to install: remove wheel, bolt on wheel spacer with provided nuts, reinstall wheel. Suggested Lug Nut Torque Rating: 75-80 ft-lbs. Do Not Exceed 85 ft-lbs.
Price per Pair.
Add To Shopping Cart MC-12221, Wheel Spacers, 1.25" Wide, $79
Add To Shopping Cart MC-12222, Wheel Spacers, 1.50" Wide, $89
Add To Shopping Cart MC-12223, Wheel Spacers, 2.00" Wide, $99
Wheel Spacers
 
Front Axle Drive Flange

Drive flanges replace the manual locking hubs on 1979-1985 Pickup/4Runner solid front axles. Drive flanges keep the front axle locked at all times. Factory Toyota Part, made in Japan, bolts on with no modification. Can be drilled for additional dowels. Ideal for trail only and competition rigs. Included end cap. Fits right or left side. Fits 1976-1990 FJ40 & FJ60/62 Disk Brake Front Ends.

MC-12005, Drive Flange W/cap, $45

Drive Flange

 

Knuckle Ball Kit

Even with a lower or upper axle truss the front axle can still bend. These gussets strengthen the last weak link on your axle housing. They fit Toyota FJ40, 60, 62 Land Cruiser or pickup/4runner axle housings and include caps for the steering stop. Because of the size of the upper gusset and the location of the lower shock mount on Pickup and 4runners axles we have incorporated a new lower shock mount of the upper gusset. This upper gusset features a single shear lower shock mount (This is similar to the Land Cruiser).

Upper and Lower gussets are made of laser cut 3/8" steel while the steering stops are cut from ¼" steel.

Note: Some grinding may be needed to trim to fit these gussets. Welding, cutting and grinding required.

Add To Shopping Cart Knuckle Ball Kit, $29

Upper Axle Reinforcement Gusset

This gusset welds on top of the 79-85 Toyota solid axles. Provides increased strength and prevents axle tube bending. Two versions, with or without speed holes. Simple weld and paint installation.

Add To Shopping Cart MC-15000, Front Axle Gusset W/Holes, $25
Add To Shopping Cart MC-15001, Front Axle Gusset Without Holes, $25
 
Axle Gusset
 
Differential armor

Through special arrangements we are proudly selling All Pro Off-Road’s differential armor. This is a ¼” formed diff cap. It’s to be welded to the axle housing.

Includes two low profile drain plugs

 

 

Add To Shopping Cart Differential Armor, $69 each

 


   
Axle Breather Kit

We have received lots of requests for a differential breather kit so we put one together using top quality Toyota parts.
The Breather Kit features a ball valve on the end of a section of tubing and a threaded fitting that fits your axle.

The long tubing allows flexible mounting locations. One kit vents one axle.

 
Add To Shopping Cart MC-17003 Axle Breather Kit, Pickup/4Runner/Tacoma, $29

   

Knuckle Service Kit

Includes all the standard knuckle service parts: wipers, felts, gaskets, lock washers, inner axle & bearing seals, hub gaskets, knuckle shims, and High Quality Japanese NSK knuckle bearings. This is not just another no-name knuckle bearing kit! Fits 79-85 Pickup/4Runner, FJ40, FJ55, FJ60 & FJ-62. Kit does not include wheel bearings. Kit covers both left and right sides.

Add To Shopping Cart MC-12000, Knuckle Service Kit, $85
Add To Shopping Cart MC-12006, Knuckle Kit W/Wheel Bearings, $165

 

Wheel Bearing Kit

Front wheel bearing kit includes inner and outer High Quality Japanese KOYO wheel bearings. These are factory Toyota OEM Parts in the original Red-label Toyota Boxes! Kit also includes wheel bearing seal, hub gaskets and lock washer. One Kit fits One Side Only Fits 79-85 Solid Pickup and 4Runner axles.

Add To Shopping Cart MC-12003, Wheel Bearing Kit $45
 

Spindle Nut Kit

Kit contains (2) 54mm nuts, (1) tag washer and (1) star washer. One kit used for each side of front axle.
Toyota OEM Parts made in Japan

Add To Shopping Cart MC-12004, Spindle Nut Kit $8.50

Wheel Bearing Nut Kit

 
Knuckle Studs, Nuts, Washers, Factory replacement knuckle parts. Upgraded knuckle stud, Toyota now included a Torx E12 on top. This make it easier to install or remove into knuckle. GENUINE TOYOTA PARTS!!
 
Add To Shopping Cart MC-12100, Knuckle Stud $1.87
Add To Shopping Cart MC-12101, Knuckle Stud Nut $1.16
Add To Shopping Cart MC-12102, Knuckle Stud Split Washer $.63
Add To Shopping Cart MC-12103, Knuckle Flat Washer $1.38
Add To Shopping Cart MC-12104, Knuckle Stud Cone Washer $3.61
Add To Shopping Cart MC-12105, Brass Axle Bushing $33.38

 

Front Axle Snap Rings

We carry all three front axle snap rings. The ring on the left is the outer Birfield snap ring. It is found inside the manual hub. The ring in the center of the photo is the inner axle snap ring. This smaller ring goes into the diff on the end of the axle. The clip shown on the right is the inner Birfield ring, and it can be found on the outer end of the front axles, inside the Birfield.

Axle Clips

Add To Shopping Cart MC-12106, Front Axle Outer Birfield Snap Ring, $2.22
Add To Shopping Cart MC-12107, Front Axle Inner Snap Ring, $4.40
Add To Shopping Cart MC-12108, Front Axle Outer Snap Ring, $1.51
 

Rear Axle Service Parts

We have the rear axle service parts your looking for. Rear axle kit contains 2 of each of the items listed below.

Add To Shopping Cart MC-12156, Rear Axle Kit, $149
Rear Axle Housing Seal: See Below
Add To Shopping Cart MC-12151, Rear Axle Bearing, $54.31
Add To Shopping Cart MC-12152, Rear Axle Bearing Retainer, $15.98
Add To Shopping Cart MC-12153, Outer Axle Rubber Seal, $4.33
Add To Shopping Cart MC-12154, Rear Axle C-clip, $1.15
Add To Shopping Cart MC-12155, Rear Axle O-ring, $3.66

Rear Axle Service Parts

 

Heavy Duty Front Inner Axle Seal

These New Marlin Crawler designed Heavy Duty Front Inner Axle Seals are an amazing upgrade for your truck. If you are constantly replacing inner axle seals because of leaks, or you just want to build the most bad ass Toyota front end possible, then these are the seals you want!
Advantages of our HD Inner Axles Seals include:

  • Indexed lip ensures a perfect perpendicular installation
  • Wide design allows movement, maximum shock absorption
  • Steel Expansion Ring ensures true circular inner dia
  • Seal holds to axle even under heavy vibrations
  • 164% Increase in effective sealing deflection distance
  • 89% Wider than the "common aftermarket seal"

  • Our New Heavy Duty Inner Axle Seals are designed by Marlin Czajkowski of Marlin Crawler and are an exclusive Marlin Crawler product. Current applications include all 1979-1985 Toyota Hilux 8" Front Axles, and all 1969-1/1990 Landcruiser front axles including FJ40, FJ45, FJ55, FJ60, and FJ62. Order a pair of these along with a pair of our Special Fit Rear Axle Seals below to ensure a leak free rig! Always Grease the ID of any new seal before installation. Sold individually.

    Add To Shopping Cart MC-12149, Heavy Duty Front Inner Axle Seal, $7.49

    Click here for more info

    Special Fit Rear Axle Seals

    These New Rear Axle Seals from Marlin Crawler feature a carefully indexed lip to ensure correct seal depth and contact with the rear axle shaft. The lip aligns the seal parallel with the axle housing, which assures precise seal alignment for increased seal performance and extended seal life. Fits 1979-95 Hilux, 1993-98 T100, 2000-06 Tundra, and 1995-04 Tacoma/4Runner Rear Axles, excluding axles with ABS. Always Grease the ID of any new seal before installation. Sold individually.

    Add To Shopping Cart MC-12150, Rear Axle Housing Seal, $4.99

    Marlin Crawler Special Rear Axle Seal
    Click here for more info and pictures!

     

    FJ80 Inner Axle Seals

    We carry genuine Toyota FJ80 Inner Axle Seals. Fix your leaky axle by replacing its inner axle seal today!

    Add To Shopping Cart MC-12148, OEM FJ80 Inner Axle Seal (each), $7.29
    FJ80 Inner Axle Seal, OEM Toyota
     

    Front Manual Locking Hub

    All new Toyota factory locking manual hub. Includes hub gasket (not shown). Fits 1979 to 1985 Toyota Pickup and 4Runner applications. Made by original equipment manufacture Aisin. Genuine Toyota parts.

    Add To Shopping Cart MC-12110, Front Manual Locking Hub, $291

     
    Manual Hub Parts

    These replacement manual hub parts fit 1979-1995 Toyota Pickups and 4Runners. Genuine Toyota parts.

    Add To Shopping Cart MC-12111, Hub Outer Dial Gasket, $3.17
    Add To Shopping Cart MC-12112, Hub Stud, $0.80
    Add To Shopping Cart MC-12113, Hub Cone Washer, $3.29
    Add To Shopping Cart MC-12114, 8mm Lock Washer, $0.57
    Add To Shopping Cart MC-12115, 8mm Nut, $0.71

     

    3/8" Stud Installer Socket

    Toyota has updated it's knuckle studs to make them easier to remove and replace. They added an E12 bolt head to the top of the stud. This 3/8" drive E12 socket is made in the USA making it the right tool for replacing your knuckle studs.

    Add To Shopping Cart MC-17103, E12 Socket, $6.95

    E12 Socket

     

    Snap Ring Pliers

    Removing the snap ring from inside the hub when doing trail side Birfield repairs can be quick and easy, or a hours long ordeal if you don't have the right tools. These high quality Proto Tool snap ring pliers make it easy to reach into the hub and remove the stub shaft C clip. Also useful for transmission servicing.

    Add To Shopping Cart MC-17102, Snap Ring Pliers, $24.95

    Snap Ring Pliers

     

     

    Knuckle Pull Scale

    The scale allows you to measure the knuckle shim preload. To use: remove tie rod, attach the scale to the steering arm. Then adjust the shims until it takes 12-15lbs of force to rotate knuckle.

    Add To Shopping Cart MC-17101, Knuckle Pull Scale, $9.99




    54mm Socket

    Our new 54mm socket features a 1/2" drive instead of the standard 3/4" drive. Heavy wall and formed from a die. Powder coated for rust and longevity.

    MC-17100, 54mm Hub Socket, $19.95

     

     
    8" Long Spline Shaft
    When installing long travel suspension system and/or crossover steering the front drive shaft spline is just not long enough to get the job done. The kit allows a full 8" of slip travel. Made in Japan.

    Uses the same U-joint as stock 1984-1995 Pickup & 4Runner. U-joint available separately. This joint makes a good spare for the tool box! Joint is Also Made in Japan

    To install, cut the tube from your drive shaft and replace with a length of .095 or .120 wall tubing. Set up the drive shaft so that you have 3" of compression and 5" of extension at ride height.

    Add To Shopping Cart MC-12900, Drive Shaft 8" Long Spline Kit, $179
    Add To Shopping Cart MC-12901, Drive Shaft U-Joint, $20






    Drive Shaft Bolts
    New Factory Toyota 10mm drive shaft bolts for 1984 to 1995 Pickups and 4Runners.

    Add To Shopping Cart MC-12902, Drive Shaft Bolt, $1.86
    Add To Shopping Cart MC-12903, Drive Shaft Flange Nut, $2.63
    Add To Shopping Cart MC-12904, Drive Shaft Lock Washer, $0.54

    Drive Shaft Bolt, Nut, & Washer



    High Angle Drive Lines High quality, long travel, super tuff!

    High Angle Drive Line Logo
    Front Long Travel CV Drive Line
    Rear Std. Travel CV Drive line
    Price
    $349
    $199
    Core Charge
    $150
    $150
    All Content Copyright Marlin Crawler 2007. All products intended for off-road use. All products guaranteed for
    one year against defects in materials and labor. Prices and products subject to change without notice.