Dual Bearing Spring Slider 21"

Dual Bearing Spring Slider Using A Linear DU Bushing On A Hard Chrome Shaft, Along With A Shaft Stabilizing Internal Piston. The Spring Cup Opposite The Adjusting Nut Is Quickly Removed With A Clip, So There Is No Need To Unscrew The Nut To Remove The Spring. The Jam Nut Style Locking System Allows For Fine Tuning And Keeps the Nut From Moving While Racing. The Torrington Bearing On The Adjuster Nut Allows For Easy Adjustment. Sliders Now Come Standard With The OD Alignment Cups. This Is The 21" Extended Fine Thread Body For 5" OD Springs. Measures 15" Collapsed and 21-1/2" Extended.