Need some help with some OEM 4th gen rear hub measurements
07-04-2013, 02:16 PM
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Need some help with some OEM 4th gen rear hub measurements
The 3rd gen has rear lug studs with a 12.83 mm knurl diameter. The front lug studs have a 14.35 mm knurl diameter. The fact that the front and rear studs are different is ridiculous. Why Nissan did this, who knows.
The issue is that I have H&R 15mm extended lug style spacers. I went to install the H&R lugs the other day and found out the hard way they won't fit. The H&R lugs are 14.35 mm knurl diameter and won't fit into the 3rd gen rear hub. I guess this is why H&R says these spacers won't fit the 3rd gen (I just assumed the application chart simply overlooked the 3rd gen. Saw no reason they wouldn't fit as all 89+ Maximas have the same bolt patten, hub bore, etc).
I've had a heck of a time finding extended 12.83 mm knurl diameter lug studs in the correct thread pitch. Nismo supposedly makes some, but I'm not paying $130 for friggin lug studs.
For a while I considered just buying extended studs meant for late model GM's which are the correct knurl diameter but M12x1.5 thread pitch. The drawback to this would be having to run different lug nuts on the rear. I did end up finding some "Ichiba" studs (I put it in quotes because I can't find these same studs directly on Ichiba's website) that should work for me but I'm dubious of their quality and they're on back-order anyway.
Anyway, my brother manages a PebBoys and I had him pull an aftermarket 4th gen hub for me and take some crude measurements for me. I now have a sneaking suspicion that the 3rd gen and 4th gen rear hub assemblies are identical except for the lug hole diameter. Obviously the 4th gen takes 14.35 mm knurl diameter rear lugs. I WISH the 3rd gen took 14.35 mm knurl diameter rear lugs. OEM part numbers are different on the hubs as are aftermarket part numbers (PebBoys stocks the 4th gen hub while the 3rd gen is special order), but I still have a sneaking suspicion they are the same.
Long story short, if I'm correct, this means I could just run 4th gen rear hubs and use the H&R supplied extended studs that came with my spacers. 4th gens are abundant at the junkyards here and hubs are only $15 a pop.
I did some measuring today on my stock 3rd gen rear hub. ABS ring may be an issue, but my ABS doesn't work anyway so I'm not too worried about its measurements right now. My brother didn't have any in stock with the ABS ring so I couldn't compare.
Here's where I need help - could somebody take the same measurements for me of an OEM 4th gen rear hub?
The issue is that I have H&R 15mm extended lug style spacers. I went to install the H&R lugs the other day and found out the hard way they won't fit. The H&R lugs are 14.35 mm knurl diameter and won't fit into the 3rd gen rear hub. I guess this is why H&R says these spacers won't fit the 3rd gen (I just assumed the application chart simply overlooked the 3rd gen. Saw no reason they wouldn't fit as all 89+ Maximas have the same bolt patten, hub bore, etc).
I've had a heck of a time finding extended 12.83 mm knurl diameter lug studs in the correct thread pitch. Nismo supposedly makes some, but I'm not paying $130 for friggin lug studs.
For a while I considered just buying extended studs meant for late model GM's which are the correct knurl diameter but M12x1.5 thread pitch. The drawback to this would be having to run different lug nuts on the rear. I did end up finding some "Ichiba" studs (I put it in quotes because I can't find these same studs directly on Ichiba's website) that should work for me but I'm dubious of their quality and they're on back-order anyway.
Anyway, my brother manages a PebBoys and I had him pull an aftermarket 4th gen hub for me and take some crude measurements for me. I now have a sneaking suspicion that the 3rd gen and 4th gen rear hub assemblies are identical except for the lug hole diameter. Obviously the 4th gen takes 14.35 mm knurl diameter rear lugs. I WISH the 3rd gen took 14.35 mm knurl diameter rear lugs. OEM part numbers are different on the hubs as are aftermarket part numbers (PebBoys stocks the 4th gen hub while the 3rd gen is special order), but I still have a sneaking suspicion they are the same.
Long story short, if I'm correct, this means I could just run 4th gen rear hubs and use the H&R supplied extended studs that came with my spacers. 4th gens are abundant at the junkyards here and hubs are only $15 a pop.
I did some measuring today on my stock 3rd gen rear hub. ABS ring may be an issue, but my ABS doesn't work anyway so I'm not too worried about its measurements right now. My brother didn't have any in stock with the ABS ring so I couldn't compare.
Here's where I need help - could somebody take the same measurements for me of an OEM 4th gen rear hub?
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