Re: Steer axel wheel stud question Reply #25 – August 10, 2019, 06:59:32 pm Quote from: George Hatfield – August 10, 2019, 06:33:09 pmMaybe someone mentioned this, but my stretched studs were discovered when they could not torque them to 450 foot-pounds. GeorgeGeorge, were they stretched, or did they pull through the nuts? Quote Selected
Re: Steer axel wheel stud question Reply #26 – August 10, 2019, 07:42:38 pm Quote from: Protech Racing – August 10, 2019, 05:48:04 pm For some odd reason, it seems as tho the tq value for the outer nut is higher then the inner retainer nut.Don't forget the splines. Quote Selected
Re: Steer axel wheel stud question Reply #27 – August 10, 2019, 07:51:58 pm Craneman... good question and I really don't know the answer. I remember they are not easy to get out, that is for sure. Does the photo of the stud in my post show anything? When looking at that pic keep in mind that some damage may have been done in the process of removing the damaged stud. George Quote Selected
Re: Steer axel wheel stud question Reply #28 – August 10, 2019, 08:27:54 pm hdff, Pardon my French, but there's no way in hell the stud, top left, in the OP pic stretched that much. The back nut and/or stud are stripped, the stud is broken (unlikely), or the nut backed off. Take the nuts off the proud studs and inspect the threads of the nuts and studs. If the nuts are stripped, but studs are good, replace the nuts. If the studs are stripped or broken, get out your wallet. Either way, torque the back nuts to the proper spec. Watch "mechanic" like a hawk or, better yet, do it yourself. JMO Whatever it takes to make it right. This is not an area to do a questionable "fix" on. Quote Selected 1 Likes
Re: Steer axel wheel stud question Reply #29 – August 10, 2019, 08:59:17 pm Quote from: George Hatfield – August 10, 2019, 07:51:58 pmCraneman... good question and I really don't know the answer. I remember they are not easy to get out, that is for sure. Does the photo of the stud in my post show anything? When looking at that pic keep in mind that some damage may have been done in the process of removing the damaged stud. GeorgeYour picture shows the stud stripped. Quote Selected
Re: Steer axel wheel stud question Reply #30 – August 11, 2019, 12:03:26 am The inner nuts are 250#, the wheel nuts are 350 -400 or a little less greased. 450 or more with a nasty impact should pull the inner threads,every time. IMHO. 400# with a torque wrench should be the upper limit . The splines only reduce the turning of the stud. Quote Selected 2 Likes
Re: Steer axel wheel stud question Reply #31 – August 11, 2019, 09:19:05 am Quote from: Protech Racing – August 11, 2019, 12:03:26 am The splines only reduce the turning of the stud. The splines are a manufacturing "cheat." Precision is expensive and both sides, the hole and the stud are less expensive to manufacture using splines to insure a press fit. Quote Selected 1 Likes
Re: Steer axel wheel stud question Reply #32 – August 11, 2019, 12:05:33 pm In this case, the shank of the stud has a straight knurl. Somewhat similar in appearance to splines. Splines are (normally) machined and/or ground. Knurling is a forming process (metal displacement), used for a variety of reasons. In the case of our wheel studs, the reasons given in the 2 previous post are correct, except that the knurl is intended to prevent the stud from rotating. Quote Selected
Topic: Steer axel wheel stud question