While testing gravity drop on my mains with dump valve open, the spring on the overcenter link seems to only exert about 5-10 lbs. force on the link at locked position.  Spring is many  years old but not in use.  Do these get weak?  What is recommended force of spring?  I just installed the TK-5 shocks.  The adjustment moved the tire back so that it no longer touches the hydraulic lines and centers in the wheelwell.  Took maximum short position on the adjustment cam to do this.  Is this typical?  Ed Gray Dallas, 360 ready for paint. Reg. papers sent to Faa, look for 77ZG