would it be possible to put the progressive sprigs that fit on the 650 onto a 360. If it is possible, how hard is it to change out the springs and what kind of tools would be needed. Thanks.

 

any idears?

 

I can't comment on the fit on the 360, but I can say installing the springs is not very hard.

Other than compressing the springs to get them on and off everything is really easy.

 

Ditto.

If you decide they will interchange (?), get a couple of buddies to help pull the springs down, stand away from top of spring. There was one guy on here who said he pulled the spring down by himself and his wife put the keeper in place. I should have remembered who that was and always be nice to him.

A few guys fab a spring compressor, but it's fast and easy if you have 3 guys.