Broken CV Driveshaft Stud
07-30-2013, 09:53 PM
#1
Junior Member
Thread Starter
Broken CV Driveshaft Stud
2004 F150 FX4
Ball joints were bad, so I replaced the upper and lower control arms, tie rod ends, front stabilizer bar end links (all Moog parts) and installed new KYB shocks on all four corners. Hubs and CV driveshafts looked good, so I left them stock.
In order to get some tips and the torque requirements, I purchased a book from the local auto parts store. When finishing up, the book said to torque the CV driveshaft nut to 144 lb-ft. Needless to say, I snapped it off.
I believe the CV driveshaft is in compression all the time. So, do I need to worry about it? I also thought of welding the nut onto the end that is left (knowing I would have to grind it off later if I needed to work on it.
Let me know. My concern is that if I put it in 4WD it may be too loose in the hub and trash the hub too. Any thoughts?
Ball joints were bad, so I replaced the upper and lower control arms, tie rod ends, front stabilizer bar end links (all Moog parts) and installed new KYB shocks on all four corners. Hubs and CV driveshafts looked good, so I left them stock.
In order to get some tips and the torque requirements, I purchased a book from the local auto parts store. When finishing up, the book said to torque the CV driveshaft nut to 144 lb-ft. Needless to say, I snapped it off.
I believe the CV driveshaft is in compression all the time. So, do I need to worry about it? I also thought of welding the nut onto the end that is left (knowing I would have to grind it off later if I needed to work on it.
Let me know. My concern is that if I put it in 4WD it may be too loose in the hub and trash the hub too. Any thoughts?
07-30-2013, 10:18 PM
#2
Senior Member
Are you talking about the big nut in the center of the wheel or one of the nuts that hold the axle to the diff?
07-30-2013, 10:27 PM
#3
Junior Member
Thread Starter
07-30-2013, 10:58 PM
#4
Yeah dude thats not good. Thats the axle nut not the cv joint nuts. Those are on the other end. You need to replace the cv axle. Do not drive it until you do. When you tighten that you sre only supposed to tighten it until the bearing is seated. With 145 lbs of torque you would burn ip the hub in a heartbeat. I just spent a couple of hours trying to get mine off because it was stripped.
05-16-2017, 05:30 PM
#6
sorry to resurrect this, but after putting coilovers on I found that the last shop to work on my truck broke this nut off as well.. ive been driving it like this for about 10k miles.. never had an issue.. oh and the shop is out of business..
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05-27-2017, 01:27 AM
#8
How's she goin' eh?
Bumping this thread, I think the shop that installed my bilstiens over torqued that nut that holds the axle shaft in place. I know for the 04-08 truck's it was a substantial amount then for the 09-14 trucks they used a smaller nut. Does anyone know the exact number? I remember seeing something stupid low like 12-15 ft-lbs. can anyone verify this?
Also, can someone list the proper torque method?
Also, can someone list the proper torque method?