Gear drive Cams
Outstanding HDF Member
Joined: Oct 2007
Posts: 2,018
Likes: 6
From: Edmond, Ok
I know that Darkhorse and Hoban do great work with cranks. Also, you could check with Revolution Performance www.revperf.com
Elite HDF Member
Joined: Jan 2006
Posts: 4,357
Likes: 11
From: The Lone Star State
beau, thanks for the info. I will be doing a lot of reading over the next several months figuring out what I want to do. I know I want to add the D&D Fat Cat, I'll give up the looks of the 2 into 2 for the performance of the 2 into 1.
I guess if my crank is true enough, then the gear drive cam stuff is bolt in right?
I guess if my crank is true enough, then the gear drive cam stuff is bolt in right?
Road Warrior
Joined: Jul 2007
Posts: 1,804
Likes: 0
From: Arizona
I don't think it's a problem with the year/model. I think it's just one of those things. The flywheels are just pressed on to the crank and pin. It could happen, but I don't think it's all that common. Mine had a slight vibration for a while that just got worse. This would be the perfect time to do a big bore if I had the money. 
That is, does it occur across the rpm range or at a specific rpm range? Did it start as more of an annoyance, and become a “rattle the mirrors off type” of vibration? What was the mileage through this change? Is it worse than an old solid mount Evo?
I apologize if I am asking too many questions. The basic reason for my questions is that I would like to know the symptoms of too much runout.
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