>I saw where someone suggested using a scissors jack and >although I have never tried same, I would feel more comfortable with a jacking >system with out 'any' spring in it. That was me. You must be confusing a scissor jack with something else. A scissor jack is operated by a worm gear type mechanism and usually has nice fat, flat surfaces both top and bottom. A piece of wood on top completely protects the pinblock from any gouges the jack may cause. This system is very positive and strong and I would use it over any of the methods sold by Schaff and others. Glenn.
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