Tech Tips – Bolt-On Spindles In-The-Ditch’s new X-Series dollies feature a bolt-on, easy to replace spindle assembly with high wear durable bushings standard. The Speed Lube spindle allows grease to enter the center of the spindle with a standard grease gun. It forces new grease into the spindle, pushing the old grease forward, then exiting the spindle. Without the mess, this completely repacks the bearing with new, clean grease. The spindle assembly comes powdercoated from the factory in