i have a r180 installed but cannot get one axle in.. they are the Drive Shaft Shop R180 to R160 conversion axles. passenger side is in but the drivers side stops about a half inch away from being fully seated. the circlip looks a little small but should not pose a problem. i dont think we are even are being limited by that. there seems to be a washer os shim thats about 1.75" in that looks to be a hair smaller then where the splines go, on the axle there are rub marks around where that shim should be.. the axle stub steps up about at those marks.

anyone have a set on sti axles that they could check to see if there is a step up about 3/4 in on the splines?

has anyone had issues with dss axles?

will i have to disassemble the diff to measure the i.d. of that shim?