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Discussion Starter #1
I have a '01 2500HD Ext Cab Short Bed 315/75-16 8.1L Allison


I took it in the mud over the weekend...While out there it got stuck in 3rd gear and i had a hard time getting it into reverse...


Now everything is normal when I first start it...After everything gets warmed up...engine to noraml temp and when the trans hit about 160-170 deg. the shift indicator dissapears and it get stuck in 3rd gear again no matter where i put the shifter...except N R & P but R is a pain the get into...


Can anyone help me with this ?


Thanks in advance, Artie
 

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Discussion Starter #3
Do you have a suggestion as to where I should get it from ?


And also, What does NSBU stand for


Thanks, ArtieEdited by: 2500HD2001
 

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The black unit on the right just behind the torsion bar. The newer styles are no longer black but tan. Stands for Nuetral Safety Back Up

Edited by: hoot
 

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Artie


I bought one from a Detroit Diesel/Allison dealer for less than the Chevy Dealer


Good Luck
 
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