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Toyota, Suzuki Samurai, and Jeep Off Road Parts

Corner Relief Gusset

Weld-On Gussets and Light Bar Tabs

Samurai Front Axle Service Kit

Samurai Knuckle Sandwich Kit

Mechanical to Electrical Speedometer Adapter

Samurai Clutches

Samurai Spindle Nut Socket

Fully Built Rock Assault™ Rear Axle

Fully Built Rock Assault™ Rear Axle Housing

In response to overwhelming demand, Trail-Gear is now offering fully built rear axles! These feature our world renowned Rock Assault™ Axle Housings, our complete Rear Disc Brake Kit, Chromoly Axle Shafts, Bearing Pockets, Rear Axle Bearing Service Kit and all the necessary nuts and studs, all fully assembled by our Master Mechanics according to your specifications!

Rock Assault™ Rear Axle Housings provide unparalleled strength due to the 5/16” thick, high strength DOM axle tubes that engage 5/8” further into the center section and the 360° gusset welded around the tubes on the inside of the housing. The Trail-Gear Rock Assault™ Axle Housings also feature axle tubes that have been offset above the housing centerline to allow the inner axles ride near the bottom of the axle tubes rather than in the center. The results are an increase of 3/8" ground clearance under the axle tubing. The heavy-duty, press formed, 1/4" plate steel center section shell is specially shaped to ensure a minimum of 3/4" additional clearance under the differential. The differential mounting surface is made from ½” plate steel to ensure studs cannot pull out, even under heavy loads. The outer offset flanges are made from 4130 Chromoly to prevent distortion or bending. Housings are precision aligned using start-of-the-art, 3D digital imaging equipment.

Fully Built Rock Assault™ Rear Axle Housing

Made entirely of brand new parts, these axles feature everything you need hub-to hub! This is a fully assembled rear axle made entirely of brand new, upgraded components, not refurbished junkyard parts. You choose the Axle Width and desired differential and we do all the assembly. All you’ll need to do is weld on your perches, install it on your vehicle, add the wheels and Rock the Trail! Save the time, money and hassle of ordering each component separately and building it yourself. We’ve already taken care of it!

Customize each axle to exactly what you need with your choice of:

  • Axle Width
  • Differential

Fully Built Rock Assault™ Rear Axle:

$3,360.00


Chromoly Spindle

Chromoly Spindle

Due to overwhelming demand from our customers, Trail-Gear has manufactured a much needed OEM replacement component, and filled another need in the Toyota off roading industry. Trail-Gear is very proud to introduce our new bearing spindles for 1979-1985 Toyota Pickups and 4Runners (Hilux).

Our spindles are manufactured from forged 4140 chromoly and then CNC machined for a perfect fit. Sold individually, these spindles are great when building or rebuilding a Rock Assault™ Axle Housing.

Chromoly Spindle, 140205-1-KIT

$103.95


Rock Assault™ 9 Rear Axle Housing

Rock Assult Trail 9 Rear Axle Housing w/Unit Bearing Pockets

The Rock Assault™ 9 is now available as a complete welded assembly from flange to flange including the Unit Bearing Pockets. The new Rock Assault™ 9 is available in 3 great sizes to fit most applications. Designed for Wheel Mount Surfaces (WMS) of 60”, 65” and 68”. We have made it easier for your axle upgrade or custom build. The assembly will also include the inner housing seals. Housing accepts standard and high pinion differentials. We are so confident our Rock Assault™ 9 is the strongest on the market that we are backing the product with our legendary No Questions Asked Warranty.

Now Available in 3.5" O.D. axle tubing.

*Custom sizes available. Please call to place your order for a custom-size axle housing.*

 

NOTE: WMS (Wheel Mount Surface Dimensions) reached using TG Unit Hub, TG# 144012-K, and 1/4"Brake Hats. Using other components  will vary final results.  Pinion is offset 2.125 to allow for same size  axle shafts for passenger, and driver side.

Note: The differential bolt pattern on 9" Axle Housings are NOT universal. Please check before cutting or welding

Note: For an additional $75, we will install the inspection hole kit in the location shown.

Click here for Inspection Hole Kit

 

$733.95


Rock Assault™ 9 Rear Axle Housing w/Shafts

Rock Assault 9™ Rear Axle Housing w/Shafts

The Rock Assault™ 9 is now available as a complete welded assembly from flange to flange including the Unit Bearing Pockets The new Rock Assault™ 9 is available in 3 great sizes to fit all applications. Designed for Wheel Mount Surfaces (WMS) of 60”, 65”, and 68”. We have made it easier for your axle upgrade or custom build. The assembly will also include the inner housing seals. Housing accepts standard and high pinion differentials. We are so confident our Rock Assault™ 9 is the strongest on the market that we are backing the product with our legendary No Questions Asked Warranty.

Now available for purchase with Trail-Gear’s true, full-float 35-Spline Axle Shaft made from heat-treated 4340 Chromoly. For more information about TG’s 35-Spline Axle Shafts click here.

Also available in 3.5" O.D. axle tubing

*Custom sizes available. Please call to place your order for a custom-size axle housing.*

 

NOTE: WMS (Wheel Mount Surface Dimensions) reached using TG Unit Hub, TG# 144012-K, and 1/4"Brake Hats. Using other components  will vary final results.  Pinion is offset 2.125 to allow for same size  axle shafts for passenger, and driver side.

Note: The differential bolt pattern on 9" Axle Housings are NOT universal. Please check before cutting or welding

 

$943.95


Rock Assault™ Front Axle Housing

Rock Assault Front Axle Housing

 

Rock Assault™ Front Axle Housing with 3-Link Panhard Bracket

Front Housing with 3-Link Panhard Bracket

See video of our front housing
in action with Snake Racing

 

Trail-Gear is proud to introduce the newest addition to the Rock Assault™ Axle Housing family, our Rock Assault™ Front Axle Housing. This exclusive axle design is the first in the industry to be released with all new parts. That's right, our axle housing is not made with 30-year-old used knuckle balls. Our knuckle balls are forged from 1035 steel, making them much stronger than stock, eliminating closed or bent knuckle balls.

The axle tubes have been offset above the housing centerline, so the inner axles ride near the bottom of the axle tubes rather than in the center. The result is an increase of 3/8" in ground clearance under the axle tubes. The axle tubes are made from 5/16" thick 1020 DOM tubing with an outer diameter of 3". The short side of the axle tube has been lengthened by 3", making the axle IFS width, so there is no need to run wheel spacers. A 27 or 30 spline short side chromoly axle shaft will be supplied with the axle housing.

The heavy-duty, press formed, 1/4" plate steel center section is shaved to give you 3/4" of additional ground clearance under the differential. The differential mounting surface is made from 1/2" plate steel to ensure studs can not pull out, even under heavy loads. Our housings are precision alignment checked using state-of-the-art, 3D digital imaging equipment to ensure that all Rock Assault™ Axle Housings are 100% straight and true.

The Rock Assault™ Front Axle Housing will come in your choice of bare tubes, with spring perches installed, or 3-link ready with a panhard bracket included. For an additional charge we can install an inspection cap making inspecting your front ring and pinion a breeze. Axle housing is shipped unpainted and lightly oiled to prevent rust during shipping and storage.

59" from WMS to WMS.

Available Options:

  • Rock Assault™ Front Axle Housing, w/Short Side Truss Only, 140275-1-KIT
  • Rock Assault™ Front Axle Housing, w/Spring Perches, 140267-1-KIT
  • Rock Assault™ Front Axle Housing, w/3-Link Panhard Bracket, 140274-1-KIT
  • Rock Assault™ Front Axle Housing, w/Short Side Truss Only, E-Locker, 140287-1-KIT
  • Rock Assault™ Front Axle Housing, w/Spring Perches, E-Locker, 140288-1-KIT
  • Rock Assault™ Front Axle Housing, w/3-Link Panhard Bracket, E-Locker, 140289-1-KIT


Note: For an additional $79, we will install the inspection hole kit in the location shown.

Click here for inspection hole kit.

 

$733.95


Rock Assault™ Left-Hand Drop Front Axle Housing

Rock Assault Left-Hand Drop Front Axle Housing

Rock Assault™ High Steer Kit does not fit Tacoma applications.

Our Rock Assault™ Left-Hand Drop Front Axle Housing works great for 95 1/2 - 04 Tacomas with left-hand drop t-cases.

Does not come with short side shaft. 59" from WMS to WMS. Center pin width on all of our front housings is 29'' from spring perch to spring perch.

Available Options:

  • Rock Assault™ Front Axle Housing, Left-Hand Drop, Bare, 140284-1-KIT
  • Rock Assault™ Front Axle Housing, Left-Hand Drop, w/Spring Perches, 140285-1-KIT
  • Rock Assault™ Front Axle Housing, Left-Hand Drop, Bare, E-Locker, 140290-1-KIT
  • Rock Assault™ Front Axle Housing, Left-Hand Drop, w/Spring Perches, E-Locker, 140291-1-KIT


Note: For an additional $79, we will install the inspection hole kit in the location shown.

Click here for inspection hole kit.

 

$733.95


Rock Assault™ Rear Axle Housing

Rock Assault™ Toyota Rear Axle Housing

Rock Assault™ Toyota Rear Axle Housing

Rock Assault™ Toyota Rear Axle Housing

Electric Locker Version Available

The axle tubes are now made from 5/16" thick, high strength DOM tubing and engage 5/8" farther into the center section. On top of that, there is a 360° gusset welded around the tubes on the inside of the housing to ensure unparalleled strength.

Trail-Gear introduces a new concept to the axle housing design.  This exclusive design features axle tubes that have been offset above the housing centerline. The inner axles ride near the bottom of the axle tubes rather than in the center.  The results are an increase of  3/8" ground clearance under the axle tubing.

The heavy-duty, press formed, 1/4" plate steel center section shell is specially shaped to ensure a minimum of 3/4" additional clearance under the differential.  The differential mounting surface is made from ½” plate steel to ensure studs can not pull out, even under heavy loads.  The outer offset flanges are made from 4130 Chromoly to prevent distortion or bending.  Housings are precision aligned using start-of-the-art, 3D digital imaging equipment.

The Rock-Assault™ axle housings use stock or aftermarket 1986-1995 Toyota Pickup/4Runner axle shafts.  An optional fill / inspection cap can be installed for an additional fee.

Overall housing length is 51 3/8" mounting flange to mounting flange. Empty housing is 54 lbs. Includes drain plug. Spring perches, shock mounts, and vent not included. Differential stud kit and RTV silicone are included and are recommended for use with this axle. Unpainted bare-metal, oiled finish to prevent rusting.  We recommend that you degrease the housing inside and out before installation and painting.

The original design concept for this axle was created by Jason (Locktup) Stanley. This rugged, high clearance design proved to be extremely tough and helped Team Trail-Gear win first place in the 2007 We-Rock F-Toy Series. Thanks Jason!

Note: All rear Rock Assault™ Axle Housings utilize an 8" differential

Check out the Rock Assault™ Rear Axle Housing in Four Wheeler magazine.

Available options:

  • Rear Axle Housing, IFS width, 140187-1-KIT
  • Rear Axle Housing, IFS width, Electric Locker Style, 140210-1-KIT
  • Rear Tacoma Axle Housing, 140211-1-KIT
  • Rear Tacoma Axle Housing, E-Locker Style, 140212-1-KIT


Note: For an additional $79, we will install the inspection hole kit in the location shown.

Click here for inspection hole kit.

 

$418.95


Rear Axle Bearing Pocket

Rear Axle Bearing Pocket

Sold Individually

These rear axle bearing pockets fit most Toyota Pickup and 4Runner axles made from 1979 to 1995. This bearing pocket is made from 4340 chromoly and allows you to use our rear Toyota or Samurai Rock Assault™ axle housings with an aftermarket disc brake kit (coming soon). No junk yard or used parts are required.

Before we made this product you would have to steal the bearing pockets from another rear axle in order to use our Rock Assault™ housings. Now you can build a completely new axle with no used parts whatsoever (after market disc brake kit required). These bearing pockets are sold individually, two are required to build one rear axle housing.

Note: Sold Individually

Rear Axle Bearing Pocket, 140194-1-KIT

$40.95


Solid Axle Hubs

Solid Axle Hub, OEM Replacement
Solid Axle Hub, Creeper Flange Style

Due to overwhelming demand from our customers, Trail-Gear has manufactured a much needed OEM replacement component, and filled another need in the Toyota off-roading industry. Trail-Gear is very proud to offer brand new hubs for solid axle Toyota Pick-ups and 4Runners. Trail-Gear is the first manufacturer to produce this part since Toyota themselves! These hubs are forged and fully machined from 4130 Chromoly steel making them much stronger than Toyota’s original cast steel version. The Trail-Gear Solid Axle Hubs are brand spankin’ new, not refurbished junkyard hubs.

The Trail-Gear Solid Axle Hub is available in two versions: a direct OEM replacement for use with locking hubs; or a version that is pre-drilled for use with Trail-Gear’s Creeper Flanges. The direct OEM replacement comes drilled and tapped with 2 dowel pins pressed in. The Creeper Flange hub comes drilled and tapped with 6 dowel pins pressed in for use with Trail-Gear’s Creeper Flange. Trail-Gear Solid Axle Hubs can be purchased individually or in a set of two.

Looking for Front Wheel Studs? We recommend these: TG Front Wheel Stud

Available Options:

  • Trail-Gear Solid Axle Hub-Creeper Flange style, 140435-1-KIT
  • Trail-Gear Solid Axle Hub-OEM Replacement, 140436-1-KIT
  • Trail-Gear Solid Axle Hub-Creeper Flange style (PAIR), 140448-1-KIT
  • Trail-Gear Solid Axle Hub-OEM Replacement (PAIR), 140449-1-KIT
$135.45


Tie Rod

Tie Rod

Our heavy duty tie rods. Made from 1.25" x .250" wall DOM tubing. Precision tapped. Left side thread mark. Each rod is test fitted to ensure rod ends thread in with correct fit. Powder coat black finish. Fits 79-95 Pickup/4Runner with crossover steering. Tie rod length is 41.5".

When installing a Rock Assault™ Front Axle Housing and using a hi steer kit, a longer drag link and tie rod will be required to compensate for the axle housing being 3" longer then a stock housing. If you already have a hi steer kit you can simply purchase the longer drag link and tie rod, but if you are buying the Rock Assault™ Front Axle Housing and the Rock Assault™ High Steer Kit at the same time you can purchase them altogether on the high steer kits page.

Available Options:

  • Standard Length, 41.5", 130588-1-KIT
  • Rock Assault™ Length, 44.5", 140265-1-KIT
  • +5" Length, 46.5", 130323-1-KIT
$68.25


Rear Axle Upper Link Mount

Rear Axle Upper Link Mount

We can also set up your rear Rock Assault axle housing with an upper link mount kit. This bracket is designed to accommodate 1.25" Creeper Joints. The upper link mount kit can be ordered loose as a do-it your-self install, or it can be ordered installed onto a housing if you are ordering a housing at the same time.

Note: This bracket is cut to fit the Trail-Gear Rock Assault rear axle housing and will not fit a factory stock rear housing. This product is not compatible with the Trail-Gear "Creeper Breather" diff vent kit. 

Available options:

  • Axle Housing Upper Link Mount Bracket - Loose, 111261-1-KIT
  • Axle Housing Upper Link Mount Bracket - Installed, 140189-1-KIT
$135.45


Fill/Inspection Cap

Axle Inspection Cap

Extra large differential fill and inspection cap. Designed to allow quick access for  inspecting the ring gear. Features 1.5" diameter access hole. Threaded aluminum cap uses a rubber o-ring for a tight seal. Installation requires cutting a hole in to the top of the differential housing and welding on a threaded bung. Kit includes: one threaded bung, one cap and one o-ring. Plug kit can be ordered loose as a do-it your-self install or it can be ordered installed into a housing if you are ordering a housing at the same time.

Available options:

  • Rock Assault Inspection Plug Kit - Loose, 140184-1-KIT
  • Rock Assault Inspection Plug Kit - Installed, 140188-1-KIT
$28.35


Upper Axle Gusset

This gusset welds on top of your Toyota front solid axle and helps prevent bending of the axle housing.

Axle Gusset, Upper, 111305-1-KIT

$26.25


Rock Assault™ Steering Stops

Rock Assault™ Steering Stops

 

Rock Assault™

A good set of steering stops is critical so that your steering does not over travel and damage other steering or axle components. Our Rock Assault™ steering stops are machined from solid billet so you will never have to worry about smashing or distorting them. The Rock Assault™ Steeing Stops are designed for our Rock Assault™ Front Axle Housing, but they will fit on any axle housing. Kit contains 4 steering stops. Some minor grinding may be required during installation.

Rock Assault™ Steering Stops, 140273-1-KIT

$30.45


Rock Assault™ Front Axle Truss

Rock Assault™ Front Axle Truss

The Rock Assault™ Front Axle Truss will weld onto the top of your Rock Assault™ Front Axle Housing for extra protection against bending during competition or other extreme applications. The Rock Assault™ Front Axle Truss will not only give you the peace of mind that your Rock Assault™ Axle Housing will last a lifetime, but it adds a sharp durable look to the axle housing.

Some minor grinding and clearancing may be required for correct fitment.

Rock Assault™ Front Axle Truss, 110167-1-KIT

$26.25


Rock Assault™ Front Axle Shock Mounts

Rock Assault™ Shock Mounts

These shock mounts are designed to weld directly on to the Rock Assault™ Front Axle Housing. Sold as a pair.

Rock Assault™ Front Axle Shock Mounts, 110175-1-KIT

$21.00


Rock Assault™ Front Three Link Pan Hard Bracket

Rock Assault™ Front Three Link Pan Hard Bracket

Our Rock Assault™ Front Three Link Pan Hard Bracket will allow you to use your current Trail-Link Three™ Front 3-Link Kit with your new Rock Assault™ Front Axle Housing. If you are ordering the Trail-Link Three™ Front 3-Link Kit at the same time as you are ordering the Rock Assault™ Front Axle Housing, simply choose the correct option for the Rock Assault™ Front Pan Hard Bracket, not the OEM axle pan hard bracket.

Rock Assault™ Front Three Link Pan Hard Bracket, 110174-1-KIT

$94.50


Creeper Breather - Differential Breather Kit

Creeper Breather

Prevents dirt, debris and water from getting in to your axle through the stock axle housing breather. Expands and contracts to accommodate increase or decrease in housing pressure. Kit includes one housing fitting, clamp and bellows (as shown). Easy installation takes just a few minutes. No hoses to route. Fits all Toyota Pickup / 4Runner solid axle housings (front or rear).

Note: This product is not compatible with the Trail-Gear rear axle 4 link upper link mount kit.

Differential Breather Kit, 140207-1-KIT

$19.95