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In this video we show you how to install rear upper and lower control arms on your 3rd generation Toyota 4Runner. Use the promo code “sicmods” to get you 5% off a set of these adjustable arms, and sitewide for all other products. Opt Off Road is also just weeks away from releasing the 4th gen/5th gen/FJ/GX rear kit.


These arms are made of a Thickwalled DOM steel:

No more breaking and bending rear arms! 1.625in lowers, 1in uppers for the best balance between strength AND clearance throughout travel.
Powdercoated textured black for rust protection.
OPT logo etched in, for fun.
Doubleadjustable design:

Correct your pinion angle to prevent premature ujoint wear and vibrations (if you have a lift then this applies to you).
Move rear axle position for easier tire clearance (if you have 35in+ tires then this applies to you).
Superior to other "singleadjustable” arms: no need to uninstall anything to adjust the length (then reinstall and check, then uninstall and reinstall until it's right...) Just loosen the jam nuts, dial in your lengths, and then tighten the jam nuts back down. Doubleadjustable arms also have twice the adjustability length versus singleadjustable arms.
Johnny Joints® throughout:

Custom machined for our trucks specifically, for perfect fitment with stock mounts and hardware. To our knowledge, these are the first and only set of rear uppers and lowers that utilize nothing but Johnny Joints! If you aren't familiar with their reputation, click here (summary: they're the best).
Sealed, greasable flex joints with ultralow maintenance and none of the clanking, moaning, or squeaking of polyurethane, heims, and other flex joints. (our V1 prototypes have never been greased or serviced, for testing purposes. Spoiler alert, they're still flawless and silent). They're serviceable and easily rebuildable, so it's money saved in the long run.
More articulation than stock, polyurethane, heims, and other flex joints. Johnny Joints have an impressive 3442 degrees of articulation depending on the joint (other brands claim up to 33).

*PARTS*
*OPT OFF ROAD Rear Adjustable Control Arms
https://optoffroad.com/collections/4r...


*MECHANIC TOOLS*
If you're looking for other tools not used in this video, check out Timmy's Master Tool List.
https://www.amazon.com/shop/timmythet...

*MILWAUKEE 255520 M12 FUEL 1/2" Stubby Cordless Impact Wrench w/Carry Case
https://amzn.to/3m7TeXa

*Batteries for Milwaukee M12 Battery
https://amzn.to/2KgX6b6

*12Volt Lithium Battery for Milwaukee
https://amzn.to/2IG3PLh

*Sunex 1/2" Drive Master Impact Socket Set, 43Piece, Metric, 9mm 30mm, Standard/Deep
https://amzn.to/37TqKvc

*TEKTON 4950 1/2Inch Drive Lug Nut Service Tool Socket Set, 4Piece
https://amzn.to/2Ls7vRQ

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