Do not space the wheels out , this is the easiest fix ,but not recomended,both kit cars I helped on had the spacers behind the wheels ,
Front = Place clay or some materiel that wil compress & not expand to much
you can even use paper like school tablet writting paper,but clay is best
install cap all the way..remove cap & see how much space you have to work with!!
you now know how much space you have to work with
there are many different caps but finding one at a junk yard is difficult
you can remove the stop ring that presses into the rotor,, if careful it does not separate into 2 pieces
or hammer the cap flat & see if this works ,easy to knock it back out..
REAR = you can grind the large 30/29mm nut , rear stud down with a file or dremel, then use a thead file or file to recut threads,the rear is easy to do with a saw,dremel or airtool,just time consumming
or use Die to recut threads ,you can use a power saw,hack saw ,or using care go slow with a dremel with one of the fiber disc cutter,s on it,you will break many of the disc,wear eye protection ,needed here..
it is difficult to find different front bearing cap at salvage yard to fit with out modification,you will probably have to grind/cut stud down & rethread,but I would try to modify tin bearing cap,if possible ,use liquid nails/construction adhesive to hold in place
do not fear to bevel front stud & correct threads if this will work..I think the front cap is a close fit & you will have to cut stud
[This message has been edited by uhlanstan (edited 04-23-2014).]