I have recently purchased a HD softail deluxe(2005) conv. with 2008 Lehman 04 Raider SO.16766. I have set the rear tires @ 20 psi and the front @ 37 psi.The rear shocks are set at the middle setting. I am @ 190 lbs. and mostly ride two-up with a 150 lbs passenger.The trike has 17k miles on it.The ride is harsh and I'm looking for help to make it smoother. Any advise on front fork oil,rear shock replacement,and servicing rear-end(grease) would be helpful. I have been happy with J&P shocks by Progressive on a Sportster but I dont kno if they would work on trike or which length/ part to try.Thank you for any advise.