Heavy Duty Front Axles
Eliminate BBS (Broken Birfield Syndrome)!
This is THE premiere Toyota axle upgrade kit. Longfield Super Axles! Kit includes two extra large 4340 chromoly 30 spline Birfield and two 30 spline 4340 inner axles. Birfields feature 300M inner ball race. Includes two Birfield inner axle C-clips. Lifetime warranty against breakage. Simply the best kit for upgrading your Birfields. This kit is designed for Toyota
Pickup and 4Runner sold front axles. May require minor grinding of housing for proper fit. NOTE: This application does not fit any Land Cruiser models. 
***On Toyota trucks we recommend 4.88's for 33" tires and 5.29 for 35" and larger. Ring and pinions are for 8" axles. 1979-1995.
Differential Setup Kits
Our differential setup kits feature factory Toyota bearings for lasting quality. Kits include bearings, shims, marking paint, and seals.
Solid Pinion Spacer
Solid pinion spacers prevent loosening of the gear setup preload. Originally designed for older Toyota applications, Toyota stopped using them decades ago. Solid spacer and shims replace the crush sleeve. It takes a little longer to set up but you won't have to keep retorque the pinion nut down the road.
Locking Differentials
Spool Locker
Low cost traction. A spool replaces the differential carrier, locking the axle shafts together. Locking the axles provides maximum traction for off road use. Not recommended for use on the pavement. For use only in rear axle, use in the front will limit turning ability. Fits 1979-1995 Toyota 8" 3rd members.
ARB Air Locker
ARB Lockers offer the ability to turn on and off at the push of a button. Compressed air is used to engage the locking mechanism. When turned on, both wheels are solidly locked to together, completely eliminating wheel spin. When unlocked, the differential operates exactly like a stock unit, allowing unencumbered operation on pavement. The RD132 works with V6 and High Pinion applications. In order to use with a 4Cyl application you will need the 4Cyl installation kit.
Detroit Locker
Detroit Lockers offer full and positive traction for serious rock crawling. Detroit lockers work like a ratchet wrench, allowing one wheel to spin faster as needed for going around corners but does not allow either wheel to go slower than the drive speed. Totally automatic with no buttons to press. Solid reliability.
Detroit Locker V6 & High Pinion, $495, 140024-1
Addicted Offroad is now offering installation on all gears and lockers for Toyota 3rd members. Gear installation starts at $200 per 3rd member if purchasing gears and installation kits through us. Or, I will install your NEW gears for $250/3rd member. ***Pricing is for a removed 3rd member.
Please call on locker installation pricing. 970-420-4198
10" Long Spline Drive Shaft Kit
Super flexible suspension systems require more slip spline then the stock drive shaft is able to provide. The result with a stock slip spline is the drive shaft pulls apart on the trail. This long spline kit is designed to replace the stock slip section and nearly doubles the useable slip length. To install this kit the stock slip section and tubing is cut off and replaced with our long spline section and new tubing.
Our drive shaft kits are also stronger then stock. Our testing shows that a stock drive shaft will twist off and fail at after a maximum load of 3,900 ft/lbs of torque is applied. Our shaft kits test to a maximum of 4800 ft/lbs or torque. This is accomplished in two ways; first we increase the size of the material both on the inside and outside of the slider section. Then we specially heat-treat the material to increase its strength.
Each kit comes with a Heavy Duty U-joint installed and tack welded in place to ensure it does not come out on the trail. This product is a heavy duty replacement part and is not recommended for applications requiring a balanced driveshaft. Not recommended for use on the street. Long Spline Drive shaft kit $179 each.
Driveline Kit, Long Travel, w/Matsuba Joint, $175, 100005-1-K