ORIGINAL: saleens7
i noticed that the set screw on the propshaft side of the coupler was of a different size too....i eventually found one that fit tight enough that i could get it out, but when trying to tighten it, would just spin in the set screw when it got to a certian point....
Read my earlier post in this thread... I found the set screws to be both metric and standard...
Here... save you some digging through this thread...
http://www.rcuniverse.com/forum/fb.asp?m=5804415