Original Posted By:> Oscar Zuniga
Oscar,I installed a 6" Matco on NX520SF last year, to replace the used Scott 2000 thatshe came with. I'm pleased with it, but had to shorten my leafspring (shortenedJ3) to keep the wheelbase about the same.The Matco's tire contact patch is much farther aft of the mounting bolt hole thanthe Scott. The whole assembly is about 2 - 2.5" longer. This gives it a longerlever arm and resulted in more spring flex, to the point that the Matco'ssteering axis was angled aft rather than forward when loaded. Shortening thespring put it back where it belongs. Still using the Scott tension springs, andit works great. Steers easily and does not release until you want it to. Theyredesigned the mount last year to reduce steering effort. Added another .75"to the length of the kingpin and bushing, and added a grease fitting, so makesure you get the newer design. I think it's a well engineered design and recommendit.Dave MordecaiPanacea, FLNX520SF