I have not an answer to your q's, but if you go over to www.pnw4wda.org
, and look around on that forum or off the main page, about us, officers, contact either the Washington Executive Director or the Region 4 Director. Region 4 is central Washington and they do a lot of trail work up there.
Between Jim and Earl, they should be able to get you taken care of.
ASE Master Collision Tech
"Beast" - 81 "S" W/T, 85-360, T-18, Lock-rite,wag alloys, 31-10.50 Pro Comp MT's, Warn 8274 in a fabbed bumper/deer strainer(tested and approved)
88 XJ, 3" lift, 31-10.50's, custom bumpers and winch/tow bar mounts, Warn 9500HS, custom sliders/steps, camo paint, & headliner
Member: FSJ Prissy Restoration Assoc.