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Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go hereXJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.
I am going to put some '93-'98 Grand Cherokee wheels ( the ones with the gold accents) on my XJ to replace the stock steelies. While verifying the bolt pattern fitment, the stock steelie lug nuts do not appear to capture enough stud threads on the GC wheels. Seems like the GC wheels need a longer lug nut shaft fitting into the wheel hole to reach more threads. Any recommendations as to what I need? Thanks. 93-98 Grand Cherokee Stock steelie
Last edited by Datsun78; 01-10-2023 at 09:56 PM.
Reason: Correction
The lug nuts for steelie wheels have a different cone than aluminum alloy rims . You need to get acorn bulge lug nuts. 1/2 inch or metric equivalent are identical in dia and threadcount so interchangeable. The 1/2 takes a 3/4 socket...i think the metrics take a 19. I get the 1/2 but you wont really know until you can see the head of the wheel stud to see if its stamped in sae or metric, but the 1/2 fits perfect on both
The lug nuts for steelie wheels have a different cone than aluminum alloy rims . You need to get acorn bulge lug nuts. 1/2 inch or metric equivalent are identical in dia and threadcount so interchangeable. The 1/2 takes a 3/4 socket...i think the metrics take a 19. I get the 1/2 but you wont really know until you can see the head of the wheel stud to see if its stamped in sae or metric, but the 1/2 fits perfect on both
What on earth are you talking about? SAE and metric threads interchangeable??? The 93-98 ZJ wheels use 1/2-20 thread lugs and standard tapered seat lug nuts. He just needs longer studs if they're not long enough.
I've got a pail of lugnuts I removed from XJs while parting them out for over 10 years. They're all the same taper. They're all the same, period.
You just need more threads on the stud for thicker wheels. Rule of thumb regarding threads: The length of used threads must be a minimum of 1/2 of the diameter of the stud/bolt.
must be a minimum of 1/2 of the diameter of the stud/bolt.
That rule of thumb seems to vary depending on who you ask, and also depends on the material and threading. https://genfast.com/wp-content/uploa...t-Standard.pdf shows minimum 0.59" for a 1/2-20 low carbon steel nut. I believe that's based on the bolt breaking before the nut strips.
For lug nuts which tend to be softer than the lugs and have course, relatively sloppy threads, I usually prefer at least 1 diameter of thread engagement. If going into softer brass or cast iron for something load bearing, I want at least 1-1/2 diameters minimum.
What on earth are you talking about? SAE and metric threads interchangeable??? The 93-98 ZJ wheels use 1/2-20 thread lugs and standard tapered seat lug nuts. He just needs longer studs if they're not long enough.
Anything is possible with a big enough impact wrench.
What on earth are you talking about? SAE and metric threads interchangeable??? The 93-98 ZJ wheels use 1/2-20 thread lugs and standard tapered seat lug nuts. He just needs longer studs if they're not long enough.
That was my immediate thought - but didn't feel confident enough to comment.
That rule of thumb seems to vary depending on who you ask, and also depends on the material and threading. https://genfast.com/wp-content/uploa...t-Standard.pdf shows minimum 0.59" for a 1/2-20 low carbon steel nut. I believe that's based on the bolt breaking before the nut strips.
For lug nuts which tend to be softer than the lugs and have course, relatively sloppy threads, I usually prefer at least 1 diameter of thread engagement. If going into softer brass or cast iron for something load bearing, I want at least 1-1/2 diameters minimum.
I always thought bolts/studs should protrude beyond the nut by the equivalent of their diameter. Of course it's all a bit artificial with lug nuts which are rarely open but I noticed quite recently, when the tin cover came off in the lugwrench, that the studs didn't even reach the end of the remaining nut. Answer,? Probably front studs on the back & Jaguar* studs on the front.
* only because they're probably the most readily available ones here
I've always been taught that for a normal thickness nut, that you should have at least 1-2 full threads showing. A standard nut for a 1/2" bolt is only 7/16" tall.
I've always been taught that for a normal thickness nut, that you should have at least 1-2 full threads showing. A standard nut for a 1/2" bolt is only 7/16" tall.
Sounds about right, but 1st I've heard of the thickness/height/depth of the nut being a consideration. Still, one lives & learns (especially on forums)
Turns out the lug nuts for the steelies are fine for use with the GC wheels. My issue turns out to be the hub diameter on the rear axel is 1/16" larger than the center bore hole on the GC wheels.[b] This keeps the wheel from fitting flush against the wheel stud surface.
01-10-2023, 09:47 PM
Lug nut question
of the nut being a consideration. Still, one lives & learns (especially on forums) 