I did a narrow XR10 mod to my JYD rig .
Part list included
RC Bros splined tubes
RCBros » Burly Splined Tubes
XR10 shafts AXIAX30563
Axial overdrive gears AXI30401
VP Wraith knuckles VPS03200
VP Wraith C-hubs VPS02004
VP floating locker VPS05990 (I'm not happy with it) going back to my Stage 3 spool
VP Wraith race acker arm grey VPS03215
Avid bearing (same as stock)
Axial bushings for knuckles AX30450
First thing I did was cut the step off of the axle case even with the link mounts . That was 12mm total .
Next I cut 12mm off of the RC Bros splined tubs on the side away from the splines . This lets the tube slide back in to is stock place in the axle case . The splined part will now be next to the link mounts . The splines just replace the step that was cut off .
Drill and tap the tubes thru the case to keep them from spinning . Make sure you orientate the tubes the same on the left and right . Just line up one spline with something and do the same on the other side . This will let you clock the same on both sides . I drilled and taped in the front and back half . Look in the pics you will see the shinny button head screws .
Then set the C-hubs like you want them and drill and tape them top and bottom in to the tube .
I used the longer Wraith arms from VP and still needed to bent my tie rod . Oh and it ended up being 116mm . I just added a 10mm spacer for now . But the screw runs all the way thru . I don't use 2 set screws, so it should hold up .
Next I cut the flat spot off the XR10 shafts and make new ones . I think it was about 10mm I cut off of them . Don't get to crazy on the flat spots . Take the same amount from top and bottom and don't take to much .
I run a set of wide hexes and with them I'm 7 3/4" from hex to hex . With stock hex the axles will be same a stock width .
I will say this is not a cheap mod (pushing the $250.00 range) with all parts listed . It could be done cheaper with cheaper parts . It does take some skills but take your time and you can do it with simple hand tools .