I ordered mine from RockAuto. Look under "suspension", then "strut rod bushing kit". It is MOOG P/N K8659, $34.79 per kit, 2 required. They are blue in color.
I use those, and all other poly or delrin bushings front and rear on my track car.
On my last street car, I just used the MOOG strut rod bushings, and replaced all other bushings with OEM. I found that the big, pillowy stock strut rod bushings lasted 50K miles or less on Michigan roads. With the MOOG bushings, impact harshness goes up a little, but the car turns in quicker, and the bushings last much longer.
PS - when you change them, a full set of tools with deepwell sockets, large wrenches, and an impact gun are really helpful. You will also need an angle grinder to grind the lip off the sleeve holding the old strut rod bushings in place.