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I installed the 440's Standard on my 07 Ultra. Use a lift. Bleed the air off the stock shocks. When you disconnect them. Make sure you keep them (the air shocks) upright. Plug them so the oil doesn't leak out. If you loose oil, they are toast.
Install One shock at a time. Torque to spec. I don't know about the "Heavy". Mine are standard and work great.
For those who wish to use shorter shocks. Remember, you only have 4" of travel. Lower by only 1" and you loose 25% of your suspension. Been there, done that, went back to standard length to get comfort back.
I put them on my 2006 Street Glide. Had them on my last bike also. I have the heavyduty ones. I weigh 230 and usually ride two up. Another 125 lbs. When riding solo the bike is a bit stiff. Butfar from too harsh. Comparing the 440's to stock is like comparing a Yugo to a BMW. I would recomend replacing the fork springs also. What a difference in handling. Well worth it.
Gene
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