Re: Revolver Shakles? Lots of hype...
In reply to:
Chris Overacker who thought up the Ford 8.8 swap in the YJ's answered to tell me what he has experienced. He said that the buggy spring is good for about 2" of down travel, and the shackle is good for about 10".
He did say that the shackle is more expensive than the buggy spring, because you have to replace drive shafts, brake lines, shocks, and have a SYE kit on your t-case to see the full effect.
First of all, This Chris guy doesn't know his stuff, or you are not telling up what he said exactly.
Lets start with the assumption that the Jeep in question still has the stock shackle placement arrangement (i.e. no shackle reversal).
Now saying this, there is no way you need longer driveshaft travel for the Revolver shackle, or the buggy leaf, unless you were pushing the limits in the first place. I will agree with the slip yoke eliminator being needed - shoot, I think all of them need that!
Anyway, you do not get 10" extra travel out of a Revolver shackle setup - You can't. Consider a basic shackle lift - we can all agree that assuming the axle is located in the center of the spring, for every inch of shackle length added to one end, you get half of that in lift. Using that same rule, you would have to have the Revolver shackle be over 25" long when fully extended. the stock shackle is what, 3" long, so the first 3" of droop is the same as stock, after that the shackle must open up 20", and even that is not long enoough tsince the design of the shackle means that to prevent hyper-extension it cannot open all the way up (must be less than 180 degrees).
In my opinion, the "revolving" part is not necessary. A local company markets the same folding shackle principle called a HyperShackle, but without the twist part. Guess what, it works just as well, and eliminates the potential failure point of the revolver. Guess what else - theirs are much cheaper too!
Anyway, after all of my rambling, I really like the idea of folding shackles. I don't like the Revolver shackles however - for both their rediculous high price as well as the (IMHO) underbuilt revolving part.