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Need a hand finding a part name for my Allison tranny

ramyankee
Explorer
Explorer
I thought it was called a shift limiter switch. The device that works with the shift lever that illuminates the P R N D D1 D2 D3. Mine is going bad AGAIN. Thus the must be unit #4 that I have replaced with only 136000 miles. Sure would appreciate any info. My brain has failed me. Wow, big surprise...
Rick and Patti 🙂
2 Proud Christian CONSERVATIVES 🙂
2002 Chevy Silverado, 8.1, Crew, LB, 3.73, 4X4
2020 Mesa Ridge 291rls
Now living in North Idaho (formerly Northeastern California) ... but the heart is with MONTANA STATE UNIVERSITY
3 REPLIES 3

hornet28
Explorer
Explorer
sorry double post

hornet28
Explorer
Explorer
I think you're referring to the NSBU switch

Cummins12V98
Explorer III
Explorer III
That many failures I would have the Dealer install one. Used to be GM gave lifetime warranty on installed parts.
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD