I want to see if extended eyelets are required on the bottom of the shock, or different CV axles. That's been one of the things holding me back.
Long reply for that Dono, as it is a loaded question.
I have seen some run the extended eyelets, but those have been on 4" drop bracket lifts.
I have seen 2 reasons for using these. 1) Using a shorter travel shock but need a longer overall length for the 4" lift. 2) Some think they need used, to clear the CV Axle. In reality, this is only needed if the lower shock tabs are improperly placed, and too close to the CV's field of use.
No matter how long the shock is, the same amount of travel is used, as the CV axles limit travel to 3" Max either direction. A 4.5"-6" travel shock is all we need. ie... A shock with 10" of travel is going to have a longer body, but you still only use 4.5"-6" of it's travel due to CV's. Limit straps set before max travel is reached at droop, saves over extension and the death of a CV.
The shorter shock with an extended eyelet on one end, can match the longer length shock overall, and still work, with it's shorter travel.
So with a 4" suspension lift, you can use the longer shock, or the shorter shock with the extended eyelets. Both use the same amount of travel. See?
With no suspension lift, the shorter shock with 5"-6" of travel and a 10" long coil is all you need. No extended eyelets needed. Besides, a stock height shock with an extended eyelet, would reduce the overall shock length, and in order to fit, it would only have 3" total travel. I don't even think I have seen anything that small before.
For the CV query, I do not know of any different type of CV axles that work on our D35 SLA IFS, other than custom made RCV axles @$2k/set.