Progressive and works all make good replacement shocks for all hd models, my progressives work great with the heavy load of me (the major overweight part LOL) and my very light wife.
Check with CD here for a parts quote DP has pretty good prices.
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The best shocks I have used are the Progressive 440 Ricor shocks. Spedd sensitive dampening and either standard or heavy duty which allows you get a better spring rate to begin with.