pdgx Posted 4 hours ago Share Posted 4 hours ago I have a ‘58 B-61 with a duplex transmission that wants to hang up in 1st gear. I suspect it’s a worn detent/ball. Does anyone have a parts manual with an exploded view showing the 1st detent area ? Would appreciate a pic of the page(s). Thx Quote 58 Mack B-61 Semi Tractor 22 Mack AC Holmes Tiltbed Carrier 30 Ford Roadster Pickup 17 Ford TT / 285 Holmes Wrecker Link to comment https://www.bigmacktrucks.com/topic/76462-%E2%80%9858-b-61-duplex-1st-gear-hanging/ Share on other sites More sharing options...
mowerman Posted 4 hours ago Share Posted 4 hours ago You might just have dried out fork slide bar I’m sure you’ll get all kinds of reply’s good luck Quote Link to comment https://www.bigmacktrucks.com/topic/76462-%E2%80%9858-b-61-duplex-1st-gear-hanging/#findComment-592524 Share on other sites More sharing options...
Freightrain Posted 1 hour ago Share Posted 1 hour ago This is all the old Mack manuals show. No other details, just specs for bearings and such. I rebuilt my Triplex using similar picture and the instructions in the book. I made three videos showing the process. I didn't mess with the covers as they were not an issue. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/76462-%E2%80%9858-b-61-duplex-1st-gear-hanging/#findComment-592531 Share on other sites More sharing options...
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