so on my current side project the car has 4 bad tires...i have s14 se wheels with 4 new tires so i figured why not go 5 lug and just use my se wheels that are collecting dust.
conversion hubs and lots of swapping and perhaps $400+ later I could effectively do this but then I'd still need to get discs for the brakes, not as cheap as I had thought.
enter junkyard and a few different cars.
WARNING! READ BEFORE ATTEMPTING SERIOUS INJURY COULD OCCUR!
So heres the deal and the parts list:new parts needed for purchase -Infiniti j30 front hubs (x2) [~16$ at my local yard]s13 front wheel bearings (x2) [78$ from http://www.rockauto.com
]brake clean4 nissan lugnuts (any will fit so grab them while at the yard)1.25" cotter pins
tools for removal:19mm, 30mm, 32mm 1/2" drive sockets1/2" drive ratchetrubber malletflathead screwdriver1/2" drive torque wrench
torques of interest:wheel nut s13 75-87ft/lbsbrake caliper 65-75ft/lbslug nuts 80-85ft/lbs
Its a very simple fit to make this happen, just press out the j30 wheel bearings and press in the s13 bearings (seal side out!).You'll need to also remove the abs ring from the j30 hub unless you have abs which in that case it will be retained, you can press or slot it off.
be sure to get the j30 hub nut cover as you will have to use that vs the s13's due to different cover diamater.due to the different cover design of the j30 hub vs the s13 hub you will have to grind off the taper of the wheel spindle, use of a grinder with control and patience is reccomended...do not damage the spindle threads.clean spindle with brake clean and dry to clear machined surfaces of debris from grinding which could lead to premature bearing failure.
Here's the only caveat to this mod...you cannot use the factory wheelbearing retaining clip (the oem safety failsafe) however in all the wheel bearings I have ever seen or pressed bearings out of I have never seen the wheel bearing move from its seated position and it normally requires substantial force to get the old bearings out.When installing the new bearings into the hubs as per the FSM and using a 12 ton press it still required quite a bit of effort to seat the bearings so I have faith that it will not move but take this as a warning.
a few pictures to help...if you've done brakes then you know how to tear this stuff down.
unmodified wheel spindle assembly
modified wheel spindle assembly with modified backing plate for big brakes
overall spindle with modifications
completed product and q45/j30 brakes
since you've got all of this apart it would be prime time to upgrade the front brakes too, if you got to the j30 with the front suspention intact then grab the brakes...they're the same as the 1997-2001 q45 front brakes and have a rotor roughly the same size as a z32.calipers are twin piston sliding so wheel clearance is good and stock lines bolt on...gooooood stuff.