Oh wait lime creek motor sports should carry them too.... I have to say it as they, um frequent here.
The other is PDM racing .
Those are for the whiteline poly pineapples. They are a bit more then I care for, as its just a slip over poly bushing, and not even a full bushing.
I went solid (or ghetto solid, one day Ill go with alum cnc spacers or solid bushings for the weight factor!!!), as its basically the same ease of install about the same price. Plus you get to hear the cool sound the diff makes, oh and the solidness of metal is nice as well.
SPL parts sells both in the 240 section, spacers and solid inserts (replaces the entire subframe bushing). Note only one or the other is needed

As you can see for the price of a few poly pineapples, you can get the full metal bushing spacers... BTW these are exactly like the kazama units as they used to stock them then um borrowed the specs and sent it to their machinist.
Go metal if you need it, Im glad I did. BTW I didnt "need" them but .5 seconds delay in the rear end on the slaloms irritates the hell out of me
