Lever Action shocks are nothing to be afraid of. If they're working properly leave them alone. If not, rebuild them or send them off to a rebuilder.
OEM and custom shock absorbers, USA made coil springs and leaf springs, steering dampers for all makes and models rebuild service for steering gears and power steering pumps:
A-1 Shock Absorber Company
365 Warren Av. unit #101 and 109
Silverthorne, CO. 80498
800-344-1966 or 970-513-8283
http://www.shocks2springs.com/