Riverrunner
I put viper shocks on my 2000srx skid
you will need to make the transfer rods longer ( because of the added travel and higher ride height)
you can make 10mm "bushings" out of steel that are the same outer diameter as the transfer rods so they will slide into the rod housings 9 effectively makes the rods longer.
then you can make or buy plastic bushings to get the proper gaps on either side of the transfer rod housing.
once you put the shocks in and reassemble the transfer rods, you will see that there is not enough rod threaded end sticking out to start the nut. this is where the extensions are needed. ( if you sat on the sled and ran the nuts on anyway, you would just limit the suspension back to srx mode.
I set my FRA setting to the softest position ( most set in) and played with the limiter straps to get the right balance on the trail. amazing how a little adjustment on the limiter straps makes the sled come out of a corner differently.
Ihaqve not put the front shocks on. the viper has a different attachment at the top. aftgermarket brackets are avaialble. I flipped my stock brackets over and swithed left to right to add 1" rode height to the front to balance the longer travel and rideheight on the rear. thsi takes some grinding and washers to get these brackets to set right, but not too hard to do.
much better ride now, and still corners better that any of my buddies.
do a search, you will see more info and some pics on some of the threads.
hope this helps
Ramb