Does any one, especially in the USA, still make a new replacement rear shock for an 1988 Paso 750? Or is there a crossover from a different brand bike that would fit? Progressive used to still list one back a few years ago. Anyone in Europe still provide an option?

You didn`t even try to find that info. In Europe there`s Wilbers and Bitubo, in US there were shocks from Fox performance or Penske. The Paso shock is quite long compared to others so finding a replacement from another bike might not be that easy.

There is also "Öhlins".

Hagon in uk do a good quality 'budget' shock that has combined compression/rebound adjustment. I have one on my 907 i'm quite happy with. They also do a remote hydrolic preload gizmo that can be retro fitted. They are rebuilable which is nice. Check out the cafe builders they are using hagon shocks a lot so someone must be importing them to US. You should be able to get your existing marzocchi serviced, theres firms here in uk that can do them.

http://www.worksperformance.com/pdf/app ... street.pdf

Got one of these on my monster - I've been very happy with it and will replace the weird-ass air shock on my paso with a Works if I ever get around to it. I have a Fournales (French made, I think?) which dampens well, but the rebound is a little harsh for my taste. Needs some special pump to adjust, and I don't have the slightest idea how to do that so I've left it alone!