HI guys; I have the durango too and also many t4 spur.
I would like to try a 84T spur on the durango I gonna try to make with the dremel 'drum-sand' a 8mm. hole, is t gonna be difficult to make the hole 100% centered, otherwise the gear mesh will be bad.
in the age of the 8mm hole on the stock durango spur is a border (like flanged) I don t know if you understand what I meen but if you do, I was wonder if some one know the differents between using a stock spur, or using a t4 spur with a self made 8mm hole but without "border-age"
I asking this because onces I dremel a 8mm hole is gonna bee without this "border-age" like the stock one.
I hope I explain my self and sorry for my poor English
FM