Super Metal Hub Stud Kit
4WD Off-Road is an extreme hobby that puts extreme wear and tear on your Toyota truck. It is essential to upgrade and maintain every part on your truck from axles to suspension. It is equally important to upgrade the hardware that keeps everything together. The same can be said for the hub studs. When the hub studs fail, you will be left without four wheel drive, and oftentimes the hub will be unrepairable. This is the main reason why LC engineering has decided to make an affordable upgrade that won’t break the bank. Our Super Metal Hub Stud Kit is manufactured to our strict specifications and are significantly stronger than OEM standard (testing exceeded Class 12.9 standards of 177,000 psi tensile strength). Our Super Metal hub studs are zinc-plated to ensure that it is protected from rust and corrosion for many rough years to come. On the top of the stud we machined a 6mm hex head so that installation and maintenance is easy and no special tools are required. Our Super Metal Hub Stud Kit comes with enough hardware to upgrade your front axle.
Kit Includes:
- 12x Super Metal Hub Studs
- 12x Lock Washers
- 12x Cone Washers
- 12x Class 12.9 Hex Nuts
This product should not be used in a manner that violates Federal EPA Laws.
Contact our Tech Support Line for further information at 928-855-6341.
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Note: Images are for illustration purposes only. Images may not represent the product listed. Please contact customer service with any questions or concerns: 1-928-505-2501.
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1979-1985 Pickup (4x4)
1981-1985 4Runner (4x4)
1986-1995 Pickup w/ Solid Axle Swap
1986-1995 4Runner w/ Solid Axle Swap
1990-1997 Fj80 Land Cruiser
Tools Needed:
- Ratchet & Socket Set
- Torque Wrench
- Snap Ring Pliers
- Flat Head Screwdriver
- Tapered Punch
- Stud Extractor
Installation Notes:
1. Read all instructions completely and carefully before you begin.
2. Check to make sure the kit is complete and that no parts are missing. If anything is missing, please contact Trail-Gear at (559) 252-4950.
3. Park vehicle on a clean, dry, at, level surface and block the tires so the
vehicle can not roll in either direction.
4. This kit is for off-road use only. It is recommended that the installation steps below be performed by a competent mechanic. Buyers and users of this product hereby expressly assume all risks associated with the installation and use of this kit.
Installation Instructions:
1.On a flat, level surface, raise the vehicle, and place securely on jack stands.
2. Set the control dial on the Locking Hub to the “Free” setting. Remove the (6) bolts holding the Locking Hub Cover onto the body of the Locking Hub
3. Using snap ring pliers, remove the snap ring from the axle shaft. Save the snap ring for re-installation.
4. Loosen & remove the (6) stock hex nuts and washers that hold the Locking Hub onto the Hub. Discard the stock hex nuts & washers.
5. Using a tapered punch, gently tap on the slit of each Cone Washer to loosen the Cone Washers. Remove & discard the (6) stock Cone Washers. Remove the Locking Hub body and save for re-installation.
6. Using a stud extractor or the double-nut method, remove the (6) stock Hub Studs from the Solid Axle Hub. You may need to apply penetrating oil before attempting to remove the stock Hub Studs.
7.Clean the threaded holes on the Solid Axle Hub.
8. Install the new hub studs using a 6mm socket. Torque the studs to the torque value specified in the Toyota Factory Service Manual. If desired, apply Loctite to the female threads in the Solid Axle Hub and the male threads of the new Hub Stud.
9. Install the Locking Hub body onto the Solid Axle Hub. Make sure to align the dowel pins with the corresponding alignment holes in the mounting surface of the Locking Hub body.
10.Install the new Cone Washers, lock washers, and hex nuts in the order shown in the diagram below. NOTE: Some aftermarket Locking Hubs have mounting flanges that vary in height. These may require an M8 or 5/16” flat washer to be placed between the Cone Washer and lock washer in order for the hex nut to be completely tightened down (flat washers not included).
11. Tighten the hex nuts in a star pattern. Torque each hex nut to 23 ft-lbs or to the torque value specified in the Toyota Factory Service Manual.
12. Install a bolt into the axle shaft and pull out the axle shaft until the snap ring groove is accessible. Using snap ring pliers, reinstall the snap ring removed in Step 3 onto the axle shaft. Remove the bolt from the axle shaft.
13. Apply grease to the inner hub splines.
14. Set the control dial on the Locking Hub to the “Free” setting. Set the clutch to the free position. Place the gasket on the Locking Hub Cover (it is recommended that you install a new gasket).
15. Align the follower pawl tabs with the non-toothed portions of the Locking Hub body. Install the Locking Hub Cover back onto the Locking Hub Body using the (6) screws removed in Step 2. Torque each screw to 7 ft-lbs or to the torque value specified in the Toyota Factory Service Manual.
16. Verify that the Locking Hub locks and unlocks properly.
17.Remove the jack stands from underneath the vehicle.
18.Check the torque on the hex nuts periodically and before each wheeling trip.
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Resto and upgrading 86 4WD sr5 truck 
