this is what I used for my 64 4 x 4 panel; whether or not that they are the same for our application you will have to check that out, I crossed it over by measurement and shock ends
rears are RS5143 frts are RS5601 rancho
ron

http://s908.beta.photobucket.com/user/padresag/library/turned%20works
http://s908.beta.photobucket.com/user/padresag/library/furniture
and a little history of where I come from
http://forum.woodenboat.com/showthread.php?156542-old-boatshop-in-Steveston