bigaboss Posted October 10, 2011 Share Posted October 10, 2011 This is my rear differentionl for the old dog. Would it have been original? What is it? It has a bir bore 280 Cummins. Thanks Quote Link to comment Share on other sites More sharing options...
bigaboss Posted October 16, 2011 Author Share Posted October 16, 2011 Come on smart guys- Is this a "U-200"???? Quote Link to comment Share on other sites More sharing options...
rhasler Posted October 16, 2011 Share Posted October 16, 2011 Need more/better pictures. The pinion housing in the first picture looks like it belongs to a Mack. Look for an 11KB number stamped on the differential. Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment Share on other sites More sharing options...
theakerstwo Posted October 16, 2011 Share Posted October 16, 2011 That was used on B models as well as some R models. Also the R model used a single top loader. Quote glenn akers Link to comment Share on other sites More sharing options...
Maddog13407 Posted October 16, 2011 Share Posted October 16, 2011 that rear end is most likely original. seen many r models and u models with that cheap housing. it is deffinately a Mack hogs head. never seen a cheap rear end housin like that on a b model just u and r models. mack seemed to use that housin a lot in the 70's and put their hogs head in it and their spoke wheels on it. the reason i say cheap is almost everyone i have came across was broke around the spring perches on the housing and letting water in.i believe it may be a Rockwell housin thanks, Matt Quote Link to comment Share on other sites More sharing options...
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