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Ron's Web Site
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Date: 8-27-2010
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Number of Hours: 3.00
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Manual Reference:
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Brief Description: Main Gear Axle Reinforcement
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I removed the main axle cotter pins, and honed out the inside of the main axles in order to accomplish the Main Gear Axle Reinforcement Engineering Notice as described in the Jul-Sep 2009 Bear-Tracks, page 2. I didn't have a 1.255 inch reamer as described in the notice, but used a brake hone instead. It took a while, but eventually, I was able to clean up the I.D. adequately to pass the 1.25 x .120 x 5 inch 4130 reinforcement tube. I bought one foot of the appropriate tubing from ACS, and cut it to size with a bandsaw after verifying fit. I polished the tubes with 400 grit sandpaper, and Loctited them in place with Loctite #638, which is basically stronger than the Loctite #620 called out in the drawing, but has a shorter work time. I experimented with taking the weight off the wheels to see if that made the fit more difficult, but it didn't. The main reason for having the ability to jack the wheels is that when the Loctited tubes are pushed into the axle, some of the Loctite smooshes out onto the axle nut and threads, which then have to be cleaned up, so they won't be stuck in the future. Removing the nut is a bit safer when the wheel is jacked up. I used Brake Kleen to clean out the bore. I re-cotter-pinned the nuts, and cleaned up the mess afterwards.
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Everything needed, except the Loctite and the tire jack.
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