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1943 MB Tube thingy updates...
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<blockquote data-quote="wanderingwillys" data-source="post: 774393" data-attributes="member: 16274"><p><strong>Doubler Stuff</strong></p><p></p><p>I am building a low range gear box from a NP242, since I like to be different and not spend much money being different it is all home brew stuff (easier since I work at a machine shop...)</p><p></p><p>It goes to a NP 202 divorced case so I am using a double cardan "H" block and OEM slip yoke as the worlds shortest driveline..</p><p></p><p>None the less here is what I have so far:</p><p></p><p>I basically cut the front output off the box and sealed it with a piece of angle, I appologize for some of the goober welds - I had first welded this with a stick welder (weldanator) on the XJ - not a good plan...</p><p></p><p>It took a bunch of scary machining to get all the crap weld out of there - including hucking the case out of the vise once (the track marks in the corner <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite6" alt=":cool:" title="Cool :cool:" loading="lazy" data-shortname=":cool:" /> ) Some time with the TIG machine and life got better </p><p></p><p>Once that was done the rear bearing retainer had to be modified to fit in a piece of tube that will get welded to the main cover plate...</p><p></p><p>I cut the shifter plate and rail down to just what I needed and made another slider for the rail; which mounts to the main cover plate...</p><p></p><p>So on to the shaft - I have a while back some one I knew weld up the shaft in the upper half of these pics - unfortunately they did not pay much attention to concentricity or runout - it is OK for mock up but otherwise is scrap...</p><p></p><p>Because the shaft has a slider sleeve I needed to shim it out for welding - I turned the shaft back (the stuff defines hard to machine) and begane turning the locator plug for the slip yoke splines.</p><p></p><p>After boring the slider sleeve and shim I heat shrunk the outer ring onto the shaft... I still need to press in the slip yoke spline and weld that stuff up but you get the idea...</p><p></p><p>A few bearing, seals, and some more 4043 rod and we should have a working box - all for ~150$ total...</p><p></p><p>Matt</p></blockquote><p></p>
[QUOTE="wanderingwillys, post: 774393, member: 16274"] [b]Doubler Stuff[/b] I am building a low range gear box from a NP242, since I like to be different and not spend much money being different it is all home brew stuff (easier since I work at a machine shop...) It goes to a NP 202 divorced case so I am using a double cardan "H" block and OEM slip yoke as the worlds shortest driveline.. None the less here is what I have so far: I basically cut the front output off the box and sealed it with a piece of angle, I appologize for some of the goober welds - I had first welded this with a stick welder (weldanator) on the XJ - not a good plan... It took a bunch of scary machining to get all the crap weld out of there - including hucking the case out of the vise once (the track marks in the corner :cool: ) Some time with the TIG machine and life got better Once that was done the rear bearing retainer had to be modified to fit in a piece of tube that will get welded to the main cover plate... I cut the shifter plate and rail down to just what I needed and made another slider for the rail; which mounts to the main cover plate... So on to the shaft - I have a while back some one I knew weld up the shaft in the upper half of these pics - unfortunately they did not pay much attention to concentricity or runout - it is OK for mock up but otherwise is scrap... Because the shaft has a slider sleeve I needed to shim it out for welding - I turned the shaft back (the stuff defines hard to machine) and begane turning the locator plug for the slip yoke splines. After boring the slider sleeve and shim I heat shrunk the outer ring onto the shaft... I still need to press in the slip yoke spline and weld that stuff up but you get the idea... A few bearing, seals, and some more 4043 rod and we should have a working box - all for ~150$ total... Matt [/QUOTE]
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