Editing Straightening a rear end housing (section)
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==Building a straightening table== The straightening fixture pictured below is an old garage sale compressed gas cylinder cart, with its top cut off. A 6" X 6" I-beam was then welded to the cart. You don't need a cart, any table with sturdy legs will do. This cart just happened to be handy and had nice wheels so we could wheel it around the shop. [[Image:Axle_straightening_table.jpg|frame|none|A gas cylinder cart, converted for straightening rear end housings.]] To prevent any mishaps involving slippage and gravity, common jack stands are cut up to wrap the leg of the I-beam. The bottoms were notched and a slice made at each corner to get the stands fitted to the I-beam. [[Image:Modified_jackstands.jpg|frame|none|Basic inexpensive jack stands are modified to wrap the I-beam for stability.]] A straight bar is necessary. This hardened and chrome-plated bar is about five feet long, and 1.5" in diameter. It's available from McMaster-Carr for about $115.00. Alternatively, an old length of scrap steel shafting can be used. V-blocks and a dial indicator can be used to verify that a used bar is straight. Smooth, round and straight is best. You could use 1" round bar but the accuracy will suffer. One of the manufacturers that sells these alignment fixtures uses 1-11/16" bar. Bigger than 1-3/4" and the bar will begin to become too unwieldy to handle easily. [[Image:Hardened_bar.jpg|frame|none|A hardened and chrome plated steel bar.]]
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