2016 T4R wheel hub studs

[catrains]

just rotating the wheels on the truck I found that the nuts are a bit tricky compared to GM lug nuts. with the washer type toyota nut the nut does not set sometimes accurately to the stud. I was using a hand tool to install the nuts NO guns... what happened was with just a small amount of my hand force the tip of the stud on some peeled off . a sliver of metal ...as I tried to set the nut properly to thread on the stud.

now I know why the wheel nut torque is so low .. these studs are IMO like a copper hardness not anywhere near the hardness of other vehicles I have owned. my other non Toyota vehicles torque is 110-130 ft LBS..
this Toyota 83 ft lbs .... so soft steel used .

I do not recommend any gun torque tools hand power only .some on have had these studs break off when wheel removing.

inspected all the brake calipers ,pads,rotors all looked good. rubber on the calipers very soft and little corrosion .. lubed the piston seals and the guide pins silicone brake grease.

 

[chaosrob]

Depending on application sometimes too hard = brittle and that may have been something the Toyota Engineers took into consideration. For a vehicle with as many studs as ours have perhaps they wanted additional ductility sine a lot of these get pounded off road?

just rotating the wheels on the truck I found that the nuts are a bit tricky compared to GM lug nuts. with the washer type toyota nut the nut does not set sometimes accurately to the stud. I was using a hand tool to install the nuts NO guns... what happened was with just a small amount of my hand force the tip of the stud on some peeled off . a sliver of metal ...as I tried to set the nut properly to thread on the stud.

now I know why the wheel nut torque is so low .. these studs are IMO like a copper hardness not anywhere near the hardness of other vehicles I have owned. my other non Toyota vehicles torque is 110-130 ft LBS..
this Toyota 83 ft lbs .... so soft steel used .

I do not recommend any gun torque tools hand power only .some on have had these studs break off when wheel removing.

inspected all the brake calipers ,pads,rotors all looked good. rubber on the calipers very soft and little corrosion .. lubed the piston seals and the guide pins silicone brake grease.

 

[wfo9]

They are 100% adequate...

Hardness is not always strength BTW.

My GM truck takes 140ft lbs, but also a totally different size lug (but also mag style but without washer)... I always do my 4r at 100ft lbs with aftermarket conical seat style nuts. The washer mag style require less torque... it's not just the stud that defines the torque spec.

But yes. goofs with impact wrenches will destroy these and it happens quite often. Plenty of stories of wheels flying off.... When I get my tires balanced I usually go have a special conversation with the tech just to make sure he knows the torque spec. They usually do at discount tire...

 

[FrenchToasty]

They are 100% adequate...



But yes. goofs with impact wrenches will destroy these and it happens quite often. Plenty of stories of wheels flying off.... When I get my tires balanced I usually go have a special conversation with the tech just to make sure he knows the torque spec. They usually do at discount tire...

My cousin happens to work at discount tire, and he also drives a nice 1st gen; so he always takes extra good care of mine!
Whenever I go get tire pressure checked there, I always bring a soda or a Eegee(magical drink only found in southern az) to the tire monkey doing the air, I'm sure that job sucks!