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Spindle bolt torque?

T

toy4x4runner

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the studs that hold the spindle on to the knuckle. what do you torque them guys down to? what's the Factory shop manual say? I replaced my studs from parts mike less than 1yr ago along with new nuts. Looks like in Nov I'll be switching over the the "big bearing" late model hub set up. so just wondering. thanks.
-Jason
 
Chilton calls out the following:

Adjust the bearings by rotating the hub and torquing the inner adjusting nut to 50 ft. lbs., then loosening it and retorquing to 35 ft. lbs., still rotating the hub. Next, back the nut off 3/8 turn or less. Turn the nut to the nearest hole in the lockwasher. Install the outer locknut and torque to a minimum of 50 ft. lbs. through 1978 and 80 ft. lbs. for 1979 and later models. There should be 0.001-0.010 in. bearing end play. This can be measured with a dial indicator.

Hope this is what you're looking for.
 
I'm looking for the torque value for the studs that hold the spindle itself onto the knuckle. Not the wheel bearing nut. Although I think you posted that for me the other day... i wrote it down and saved it, thanks.
 
The Haynes books say 20 foot pounds but that is wrong. My GM factory service manual says 60 foot pounds. I usually take them to 50, with locktite.
 
My GM shop manuel say 45lbs/ft of torque.
but the bigger problem is where to get the locking nuts ?
Remeber there is only six holding the spindle to the knuckle
this is a saftey item, you don't what too come lose or fail !



toy4x4runner said:
60?? that sounds like a lot for such a small bolt. I think 20, or 30 sounds about right??? :confused:
Click to expand...
 
What size and grade are they. I can run a calculation.
 
Not sure what grade they are. their not really that large.... kinda supprised me, figured they have some nice 1/2" bolts or somin. Right now i have them torqued to 30lb/ft with all new hardware. I think they're 3/8" stud, about 1" long roughly. Grade... um... it's not goldish looking like grade 8, so i'm thinking stronger like Rod bolts or somin. ARP style... which is 8+ I think.
 
did some searching around. measured the thickness of the new locking nuts. the studs are 3/8"-24 fine thread. I'm guessing Grade 8. did the calculation and it says 41.2 recomended and 54.9 max. (Lb/Ft). For grade 5, says 29.2-38.9 lb/ft. They really do look like grade 8 to me, and if the GM FSM is saying 45 it's b/c the self locking nuts adds more drag. so if you're meter clicks at 41 lb/ft then then it's probly at only 35. So I'm gonna torque mine to 45 Lb/ft with no lube, dry and clean with new lock nuts that I got from parts mike. I'd like to get my torque wrench calibrated before this job too.
 
Wonder if the thread locker is neccesary, or even advisable? :confused: b/c it acts as a lube on the threads i think. and what strength thread locker would one use? This is just one area worth the time and effort. b/c those little 6 bolts are holding our front wheels on :eek1: .
 
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